Close the completed roadmap documents

README.md

@@ -1,7 +1,8 @@
 # narratio
 
 Narratio is a stage-driven Go orchestrator for turning D&D session audio into
-polished transcripts and generated artifacts.
+polished transcripts, validated Notarius extraction lanes, and generated
+artifacts.
 
 It runs a deterministic workflow with manifest-driven continuation, remote
 publish, and restore support.

docs/cli.md

@@ -75,7 +75,10 @@ narratio run <session_id> [--force] [--artifacts <name[,name...]>] [...common co
 Behavior:
 
 - evaluates full stage order;
-- skips already-succeeded stages unless `--force` is set;
+- runs `extract` between `trim` and `render`; an omitted or disabled Notarius
+  configuration records an explicit `notarius_disabled` self-skip;
+- skips already-succeeded stages unless `--force` is set or a stage-specific
+  resume check finds its durable result obsolete;
 - continues interrupted or partially completed sessions by running non-succeeded stages;
 - writes session and run manifests.
 
@@ -93,6 +96,7 @@ Valid stage names:
 - `polish`
 - `normalize`
 - `trim`
+- `extract`
 - `render`
 - `analyze`
 - `publish`
@@ -218,7 +222,10 @@ default restore scope, report location, and conflict-handling workflow.
 narratio session artifacts <session_id> [--remote] [...common config flags]
 ```
 
-Lists effective built-in and configured artifact sources, publish rules, lock state, and optional remote published-state availability.
+Lists effective built-in, configured Scriptorium, and configured extraction
+sources; reports planned, available, unavailable, and published state without
+reading payload bodies; and includes publish rules, lock state, and optional
+remote published-state availability.
 
 ### `session locks`
 
@@ -248,7 +255,9 @@ Effects:
 
 - filters analyze execution to selected configured artifacts;
 - filters publish rules that source `narratio.artifact.<name>`;
-- does not filter built-in transcript/bounds publish sources.
+- does not filter built-in transcript/bounds or explicitly configured
+  `narratio.extraction.<name>` publish sources; and
+- does not select or filter Notarius lanes.
 
 ## Common Workflows
 

docs/config.md

@@ -118,6 +118,9 @@ Rules:
 
 - `outputs[].source` is required.
 - `outputs[].dest` may be omitted when derivable from source.
+- extraction sources require an explicit `outputs[].dest` and publish only when
+  a rule names that source; the Notarius index and complete bundle are not
+  publish sources.
 - `outputs[].required` defaults to `true`.
 - static locks (`pipeline.publish.locks`) merge with remote locks (`{session_prefix}/locks.yml`), with static locks taking precedence on duplicates.
 
@@ -196,6 +199,13 @@ Rules:
 | `pipeline.trim.bounds.render_debug` | bool | No | `false` |
 | `pipeline.trim.bounds.render_output_path` | string | Conditional | required when `render_debug` is true |
 | `pipeline.trim.seriatim.report` | bool | No | `false` |
+| `pipeline.notarius.enabled` | bool | No | `false` |
+| `pipeline.notarius.binary` | string | No | `notarius` |
+| `pipeline.notarius.config_path` | string | Conditional | required when enabled; relative paths resolve from the pipeline file directory |
+| `pipeline.notarius.pipeline_id` | string | Conditional | required when enabled |
+| `pipeline.notarius.timeout` | duration | No | `3h`; must be positive |
+| `pipeline.notarius.working_directory` | string | No | directory containing resolved `config_path`; relative paths resolve from the pipeline file directory |
+| `pipeline.notarius.outputs` | map | Conditional | at least one entry when enabled |
 | `pipeline.render.enabled` | bool | No | `true` |
 | `pipeline.render.format` | string | No | `markdown` (only supported value) |
 | `pipeline.render.title` | string | No | empty (falls back to `session.title` when set) |
@@ -211,6 +221,26 @@ Rules:
 | `pipeline.notification.recipient` | string | No | empty |
 | `pipeline.notification.timeout` | duration | No | empty |
 
+### Notarius Output Entries
+
+For each `pipeline.notarius.outputs.<name>`:
+
+| Field | Type | Required | Rule |
+| --- | --- | --- | --- |
+| `lane_id` | string | Yes | unique Notarius lane ID |
+| `media_type` | string | Yes | exact accepted descriptor media type |
+| `schema_id` | string | Yes | exact accepted descriptor schema ID |
+| `schema_version` | string | Yes | exact accepted descriptor schema version |
+| `module_key` | string | No | exact accepted module key when set |
+
+Output names must match `^[a-z][a-z0-9_]*$` and become selectable sources named
+`narratio.extraction.<name>`. Lane IDs must be unique. Every declared output is
+required from a successful Notarius result; a missing, rejected, duplicate, or
+contract-incompatible lane fails extraction. See the
+[complete maintained example](../examples/pipeline.full.annotated.yml) for the
+current ten-lane D&D mapping and the [Notarius contract](./integrations/notarius.md)
+for compatibility ownership.
+
 ### Scriptorium Artifact Entries
 
 For each `pipeline.scriptorium.artifacts.<name>`:
@@ -233,7 +263,7 @@ For each artifact input `pipeline.scriptorium.artifacts.<name>.inputs.<input_nam
 
 | Field | Type | Required | Rule |
 | --- | --- | --- | --- |
-| `source` | string | Yes | built-in runtime source, prepared input source, `narratio.artifact.<name>`, or `narratio.previous_session.artifact.<name>` |
+| `source` | string | Yes | built-in runtime source, prepared input source, `narratio.extraction.<name>`, `narratio.artifact.<name>`, or `narratio.previous_session.artifact.<name>` |
 | `artifact` | string | No | optional passthrough adapter field |
 | `path` | string | No | optional passthrough adapter field |
 | `required` | bool | No | optional input requirement |

docs/integrations/README.md

@@ -19,6 +19,8 @@ focused stage documents.
 ## Integration Contracts
 
 - [Audita](./audita.md): transcript polishing (`audita process`).
+- [Notarius](./notarius.md): complete pipeline execution and safe JSON bundle
+  discovery (`notarius run`).
 - [Seriatim](./seriatim.md): merge, normalize, trim, and render operations.
 - [Scriptorium](./scriptorium.md): artifact generation and debug rendering
   (`scriptorium run|render`).

docs/integrations/notarius.md

@@ -0,0 +1,83 @@
+# Notarius Integration Contract
+
+## Boundary
+
+Narratio uses Notarius as a subprocess to extract configured structured JSON
+lanes from the final trimmed Seriatim transcript. Narratio owns invocation,
+safe bundle discovery, lane selection, and its own artifact metadata. Notarius
+owns pipeline definitions, lane schemas, the receipt, and bundle formats.
+
+Canonical Notarius references:
+
+- [Subprocess consumer contract](https://gitea.maximumdirect.net/eric/notarius/src/branch/main/docs/consumers/subprocess.md)
+- [D&D pipeline and lane contracts](https://gitea.maximumdirect.net/eric/notarius/src/branch/main/docs/consumers/dnd-pipeline.md)
+- [Run-result receipt](https://gitea.maximumdirect.net/eric/notarius/src/branch/main/docs/integrations/run-result.md)
+- [JSON output bundle](https://gitea.maximumdirect.net/eric/notarius/src/branch/main/docs/integrations/json-output.md)
+
+The [complete Narratio example](../../examples/pipeline.full.annotated.yml)
+records the exact current constraints for all ten D&D lanes. Treat the linked
+Notarius documents as canonical when changing those values; Narratio does not
+duplicate the complete schemas.
+
+## Invocation
+
+When `pipeline.notarius.enabled` is true, Narratio resolves the executable,
+configuration path, input path, output directory, and working directory to
+absolute paths and invokes:
+
+```text
+notarius run <pipeline_id> --config <config_path> --input <trimmed_json> --output-dir <staging_dir> --json
+```
+
+Standard output is reserved for the JSON receipt. Standard error is captured
+separately as diagnostic output. Narratio applies the configured timeout and
+does not interpret stdout as a receipt unless the subprocess exits successfully.
+It does not pass a Narratio session ID or run `notarius config validate`
+automatically; the configured working directory and inherited environment
+apply to the subprocess.
+
+## Accepted Result
+
+Narratio currently accepts receipt schema `notarius.run-result.v1`. The receipt
+must identify the configured pipeline, and its `index_file` must be exactly
+`index.json` beneath the reported bundle root. The production index must name
+the management files exactly as `manifest.json`, `rejected.json`, and
+`warnings.json`. All receipt, index, and lane paths must stay inside that
+bundle; symlinks and non-regular lane payloads are rejected.
+
+Supported receipt and index shapes tolerate unknown fields for forward
+compatibility, while required identity, validation, count, manifest,
+rejection, warning, and lane-list fields remain mandatory. Narratio applies
+bounded reads to the receipt, index, rejection, and warning documents. Optional
+chunk-map and evidence-context descriptors must carry their complete generic
+contract metadata when present.
+
+For every entry in `pipeline.notarius.outputs`, Narratio requires exactly one
+index descriptor with the configured lane ID, media type, schema ID, schema
+version, and, when configured, module key. Missing, duplicate, rejected, or
+incompatible required lanes fail extraction even if Notarius exited zero.
+Unconfigured lanes may remain in the preserved bundle but do not become
+selectable Narratio sources.
+
+Each accepted configured lane is registered as
+`narratio.extraction.<output_key>`. The bundle index is retained for audit and
+resume validation but is not selectable. Scriptorium and publish rules consume
+only explicitly named lane sources; `--artifacts` never selects Notarius lanes.
+
+## Failure And Compatibility Behavior
+
+- Startup and nonzero-exit errors fail extraction and retain captured diagnostics.
+- Invalid receipt JSON or an unsupported receipt schema fails before bundle use.
+- Unsafe or incompatible index data and required-lane rejection fail before the
+  staged bundle is promoted to durable storage.
+- Contract and external provenance metadata are preserved on lane artifact
+  records and through explicit publication.
+
+Rejection and warning summaries retain structured stage, scope, lane, and
+reason-code fields for diagnostics without exposing free-form external messages
+or reading lane payload bodies.
+
+Configuration fields and defaults are in [Configuration](../config.md).
+Operator paths, rerun procedures, and bundle retention are in
+[Operations](../operations.md). See [Troubleshooting](../troubleshooting.md)
+for failure recovery.

docs/internal/adapters.md

@@ -16,6 +16,7 @@ Primary adapters:
 - `seriatim.Runner`
 - `audita.Runner`
 - `scriptorium.Runner`
+- `notarius.Runner`
 - `storage.ObjectStore`
 - `notify.Sender`
 
@@ -40,9 +41,13 @@ Adapters do not own:
 - Seriatim subprocess runner.
 - Audita subprocess runner.
 - Scriptorium subprocess runner.
+- Notarius subprocess runner when extraction is enabled.
 - Noop notifier (`notify.NoopSender`).
 - Object store only when required by selected stages/config.
 
+Notarius is composed only when extraction is enabled; the extract stage owns
+receipt, bundle, and configured-lane policy rather than the adapter.
+
 Object-store construction goes through `newCommandObjectStore`, which loads
 configured filesystem secrets before adapter initialization.
 
@@ -56,16 +61,18 @@ configured filesystem secrets before adapter initialization.
 
 - Composition: `internal/app/runner.go`, `internal/app/object_store.go`
 - Shared subprocess mechanics: `internal/adapters/subprocess`
-- Focused adapters: `internal/adapters/{whisperx,seriatim,audita,scriptorium,storage,notify}`
+- Focused adapters: `internal/adapters/{whisperx,seriatim,audita,scriptorium,notarius,storage,notify}`
 - `internal/adapters/whisperx/http_test.go`
 - `internal/adapters/seriatim/subprocess_test.go`
 - `internal/adapters/audita/subprocess_test.go`
 - `internal/adapters/scriptorium/subprocess_test.go`
+- `internal/adapters/notarius/subprocess_test.go`
 - `internal/adapters/storage/*_test.go`
 - `internal/app/runner_test.go`
 
 See the [WhisperX](../integrations/whisperx.md),
 [Seriatim](../integrations/seriatim.md), [Audita](../integrations/audita.md),
-and [Scriptorium](../integrations/scriptorium.md) contracts before changing an
+[Scriptorium](../integrations/scriptorium.md), and
+[Notarius](../integrations/notarius.md) contracts before changing an
 externally visible boundary. Operator-selected values belong in
 [Configuration](../config.md).

docs/internal/artifacts.md

@@ -24,12 +24,15 @@ Registry entries bind each ID to its producer, output kind, canonical fallback,
 and content validator. The focused stage documents own their input/output flow;
 [Configuration](../config.md) owns where operators may select these IDs.
 
-## Configured and Previous-Session Sources
+## Configured, Extraction, And Previous-Session Sources
 
 - configured source ID format: `narratio.artifact.<artifact_key>`
+- extraction source ID format: `narratio.extraction.<output_key>`
 - previous-session source ID format: `narratio.previous_session.artifact.<artifact_key>`
 
-Both formats are validated by strict source-policy rules.
+All formats are validated by strict source-policy rules. Extraction sources are
+registered only from `pipeline.notarius.outputs`; the Notarius index has no
+selectable source ID.
 
 ## Runtime Catalog
 
@@ -58,6 +61,15 @@ Configured sources (`narratio.artifact.*`):
 
 - resolve only through runtime catalog availability.
 
+Extraction sources (`narratio.extraction.*`):
+
+- use the shared registration and manifest hydration path in
+  `extraction_catalog.go`;
+- require a current successful extract record with the exact configured source,
+  compatible contract and Notarius provenance, a confined regular durable
+  payload, and matching checksum; and
+- are never inferred by scanning the Notarius bundle directory.
+
 Previous-session sources (`narratio.previous_session.artifact.*`):
 
 - resolve only from local `previous/` cache state;
@@ -127,19 +139,23 @@ physical layout.
 
 - source ID formats are stable contracts;
 - artifact resolution is deterministic and manifest-aware;
+- extraction sources are available only from a compatible successful manifest
+  record;
 - previous-session source resolution in `analyze` is local-only;
 - remote current-state key construction remains centralized in artifacts helpers.
 
 ## Implementation And Tests
 
 - Registry and resolution: `internal/artifacts/artifact_resolver.go`,
-  `internal/artifacts/catalog.go`, `internal/artifacts/transcripts.go`
+  `internal/artifacts/catalog.go`, `internal/artifacts/transcripts.go`,
+  `internal/artifacts/extraction_catalog.go`
 - Current state: `internal/artifacts/current_state.go`
 - Paths and keys: `internal/artifacts/paths.go`,
   `internal/artifacts/s3_keys.go`
 - Previous requirements: `internal/artifacts/previous_requirements.go`
 - Tests: `internal/artifacts/artifact_resolver_test.go`,
   `internal/artifacts/catalog_test.go`,
+  `internal/artifacts/extraction_catalog_test.go`,
   `internal/artifacts/current_state_test.go`,
   `internal/artifacts/paths_model_test.go`,
   `internal/artifacts/previous_requirements_test.go`

docs/internal/manifest.md

@@ -50,13 +50,33 @@ The model admits these stage states:
 
 The application runner marks an executing stage running and then succeeded or
 failed in both manifests, persisting each transition. On success it records
-outputs, logs, generated configuration references, and metadata. A successful
-forced rerun marks only succeeded downstream session-stage records stale.
+outputs, logs, generated configuration references, and metadata. Artifact
+records may include optional contract and external provenance objects; old
+manifests remain compatible when those fields are absent. A successful forced
+rerun marks only succeeded downstream session-stage records stale.
+
+Starting an execution clears the current session-stage record's prior outputs,
+logs, generated configuration references, and metadata. Failed and skipped
+transitions enforce the same clearing rule directly, while success repopulates
+only fields returned by the new result. Marking a record stale does not clear
+those details because resume validation and diagnosis may still require them
+before execution begins. Invocation run manifests remain immutable audit
+records of their own outcomes.
+
+A stage may explicitly return a skipped disposition and stable reason. The
+runner persists that outcome in both manifests, clears older outputs for the
+session-stage record along with older logs, generated configuration references,
+and metadata, then applies any bounded details from the current skip and
+continues. This self-skip is distinct from deciding not to execute an
+already-succeeded stage and is reconsidered on later runs. Skipped results
+cannot contain outputs.
 
 When an already-succeeded stage is skipped, the invocation run manifest records
 the `skip` action and reason. The session manifest deliberately retains its
 existing succeeded record because it remains the cross-invocation progress
-authority.
+authority. Stages with a resume validator, currently extraction, may reject an
+otherwise eligible skip when the recorded durable result is obsolete; the
+runner marks it stale and executes it.
 
 Session manifest is the authoritative stage-progress ledger across invocations.
 Run manifest is invocation-scoped audit state.
@@ -64,6 +84,9 @@ Run manifest is invocation-scoped audit state.
 ## Invariants
 
 - stage resume/skip decisions are session-manifest driven.
+- running, failed, and self-skipped stages do not retain result payloads from
+  an earlier success.
+- stale stages retain prior details until replacement execution starts.
 - force reruns stale downstream succeeded stages.
 - run manifest does not replace session manifest as progress authority.
 

docs/internal/overview.md

@@ -53,10 +53,11 @@ The implemented canonical order is:
 4. [`polish`](stage-polish.md)
 5. [`normalize`](stage-normalize.md)
 6. [`trim`](stage-trim.md)
-7. [`render`](stage-render.md)
-8. [`analyze`](stage-analyze.md)
-9. [`publish`](stage-publish.md)
-10. `notify` (placeholder)
+7. [`extract`](stage-extract.md)
+8. [`render`](stage-render.md)
+9. [`analyze`](stage-analyze.md)
+10. [`publish`](stage-publish.md)
+11. `notify` (placeholder)
 
 `notify` currently has optional notifier call behavior and no persisted pipeline
 outputs; its default collaborator is a no-op sender. The focused stage
@@ -83,6 +84,7 @@ and execution semantics.
 - [`polish`](stage-polish.md)
 - [`normalize`](stage-normalize.md)
 - [`trim`](stage-trim.md)
+- [`extract`](stage-extract.md)
 - [`render`](stage-render.md)
 - [`analyze`](stage-analyze.md)
 - [`publish`](stage-publish.md)

docs/internal/stage-extract.md

@@ -0,0 +1,84 @@
+# Internal: Extract Stage
+
+## Responsibility
+
+`extract` runs after `trim` and before `render`. It converts the canonical
+`narratio.transcript.final_trimmed` JSON into configured Notarius lane artifacts.
+An omitted or disabled Notarius section makes the stage explicitly self-skip
+with reason `notarius_disabled`, no outputs, and no Notarius runner.
+
+The external protocol is documented in the
+[Notarius integration contract](../integrations/notarius.md). Configuration
+fields belong in [Configuration](../config.md), and physical paths and force
+procedures belong in [Operations](../operations.md).
+
+## Lifecycle
+
+`internal/stage/extract.go`:
+
+1. resolves the final trimmed transcript from the shared artifact catalog;
+2. resolves and fingerprints the Notarius invocation contract;
+3. creates a run-local staging directory and invokes the injected
+   `notarius.Runner`;
+4. validates the successful receipt, confined index, configured required lane
+   descriptors, and regular payload files;
+5. atomically promotes the complete bundle to its immutable durable location;
+6. records one non-selectable `notarius_index` output and one selectable
+   `notarius_lane` output per configured lane; and
+7. registers each lane as `narratio.extraction.<output_key>` for downstream
+   Scriptorium and publish resolution.
+
+Lane records retain checksum, contract, producer run ID, and Notarius system,
+run, pipeline, and lane provenance. Stage metadata retains the durable bundle
+root, receipt, diagnostic paths, rejection/warning summaries, producing
+Narratio run ID, and invocation fingerprint. Validation completes before
+promotion, so a rejected result cannot expose a partial durable bundle.
+
+Any executed extraction outcome that replaces a different effective outcome
+marks succeeded downstream stages stale. Repeating the same disabled self-skip
+with no outputs is stable and does not repeatedly invalidate downstream stages.
+
+## Resume Validation
+
+`internal/stage/extract_resume.go` permits a skip only when the existing stage
+record succeeded and still matches the current invocation fingerprint. The
+fingerprint covers the resolved executable and config paths, pipeline ID,
+timeout, working directory, and sorted configured output contracts.
+
+The validator then checks the producing run identity, canonical immutable
+bundle root, path confinement and absence of symlink components, receipt
+identity, exactly one canonical index, the exact configured source set,
+contracts and provenance, regular-file status, and stored checksums. Missing or
+obsolete results are non-resumable and run again; unsafe filesystem conditions
+return an error rather than silently accepting or replacing data.
+
+The fingerprint cannot observe files imported by Notarius configuration,
+profile contents, prompt/module definitions, or other transitive inputs.
+Operators must force extraction after changing any such input.
+
+## Failure Behavior
+
+Adapter startup, timeout, nonzero exit, receipt decoding, path confinement,
+index compatibility, required-lane rejection, payload inspection, checksum, or
+promotion errors fail the stage through ordinary manifest transition handling.
+Stdout receipt and stderr diagnostics remain separate. Downstream stages are
+not given selectable extraction sources unless the complete configured result
+has passed validation and promotion.
+
+When a replacement attempt begins, the current session-stage record no longer
+advertises payload from the previous success. A failed replacement therefore
+has no current outputs, logs, generated configuration references, or metadata,
+while the earlier invocation manifest and immutable promoted bundle remain
+available for audit and recovery.
+
+## Implementation And Focused Tests
+
+- Stage execution, selection, and resume validation: `internal/stage/extract.go`,
+  `internal/stage/extract_resume.go`,
+  `internal/stage/extract_test.go`
+- Subprocess boundary: `internal/adapters/notarius/subprocess.go`,
+  `internal/adapters/notarius/subprocess_test.go`
+- Catalog hydration: `internal/artifacts/extraction_catalog.go`,
+  `internal/artifacts/extraction_catalog_test.go`
+- Composition and downstream behavior: `internal/app/runner_test.go`,
+  `internal/stage/analyze_test.go`, `internal/stage/publish_test.go`

docs/internal/stage-publish.md

@@ -26,8 +26,13 @@ Exact remote placement and the operator workflow belong in
 
 - stage can self-skip when publish disabled or run upload disabled.
 - validates prerequisite stage success and object-store availability.
-- collects deterministic run file list plus run `manifest.json`.
+- collects a deterministic run file list plus run `manifest.json`, excluding
+  `audio/**` and the run-local `extract/notarius-output/**` staging bundle.
+- keeps run-local Notarius receipt and stderr diagnostics eligible for the run
+  archive.
 - resolves publish output sources through runtime artifact catalog and manifest-aware resolution.
+- publishes extraction lanes only through explicit configured output rules;
+  neither run-local nor durable Notarius bundles are scanned or uploaded wholesale.
 - selected artifact filter applies to configured artifact sources only.
 - locked outputs are skipped intentionally (including required ones).
 - optional missing outputs are skipped; required missing unlocked outputs fail.
@@ -48,7 +53,9 @@ Includes counts/lists for:
 ## Invariants
 
 - `current/run_id.txt` is the remote commit marker and is written last.
-- run upload excludes `audio/**`.
+- run upload excludes `audio/**` and `extract/notarius-output/**`.
+- `extract/notarius.receipt.json` and `extract/notarius.stderr.log` remain
+  eligible run-record diagnostics.
 - publish locks are not overridden by `--force`.
 
 The commit boundary and cleanup gate are normative architecture invariants; see

docs/internal/workspace.md

@@ -24,6 +24,16 @@ materialized into canonical session paths before stage success. Managed
 previous-session cache paths remain session-durable and are never redirected
 into run-local output space.
 
+Extraction uses run-local receipt, stderr, and output-root helpers, then
+promotes the validated external bundle to the unique immutable Notarius bundle
+path supplied by `internal/artifacts`. `internal/fileops.PromoteDirectory`
+copies only regular files and directories to a same-filesystem temporary
+sibling. Source traversal uses confined directory handles and identity checks
+so replacing an inspected root, directory, or file is rejected rather than
+followed. The completed tree is atomically renamed without replacing an
+existing destination. Exact physical paths belong in
+[Operations](../operations.md#extraction-workflow).
+
 ## Locking
 
 `artifacts.LocalStore` enforces the single-writer session lock via `.lock`
@@ -54,9 +64,11 @@ deletion scope belong in [CLI](../cli.md#clean) and
 - Path model and local store: `internal/artifacts/paths.go`,
   `internal/artifacts/local.go`
 - Run-local materialization: `internal/stage/run_local.go`
+- Immutable bundle promotion: `internal/fileops/directory.go`
 - Cleanup confinement: `internal/app/cleanup_targets.go`,
   `internal/app/post_publish_cleanup.go`
 - Tests: `internal/artifacts/paths_model_test.go`,
   `internal/artifacts/local_test.go`, `internal/stage/run_local_test.go`,
+  `internal/fileops/directory_test.go`,
   `internal/app/cleanup_targets_test.go`,
   `internal/app/post_publish_cleanup_test.go`

docs/operations.md

@@ -75,16 +75,22 @@ Canonical stage order:
 4. `polish`
 5. `normalize`
 6. `trim`
-7. `render`
-8. `analyze`
-9. `publish`
-10. `notify`
+7. `extract`
+8. `render`
+9. `analyze`
+10. `publish`
+11. `notify`
 
 Execution rules:
 
 - succeeded stages are skipped unless `--force` is set;
 - `run` continues interrupted or partially completed sessions by running non-succeeded stages;
-- force rerunning a succeeded upstream stage marks succeeded downstream stages as `stale`.
+- forcing an upstream stage marks succeeded downstream stages as `stale` before
+  the replacement runs; and
+- an executed failure, changed self-skip, or success that replaces a different
+  effective upstream outcome also marks succeeded downstream stages stale. A
+  repeated self-skip with the same reason and no outputs is stable and does not
+  perpetually rerun downstream work.
 
 Single-stage execution:
 
@@ -101,7 +107,64 @@ Selection behavior:
 - validates names against `pipeline.scriptorium.artifacts`;
 - filters analyze execution to selected configured artifacts;
 - filters publish rules for `narratio.artifact.<name>` sources only;
-- does not suppress built-in transcript or bounds publish sources.
+- does not suppress built-in transcript, bounds, or explicitly configured
+  `narratio.extraction.<name>` publish sources; and
+- never partially selects Notarius lanes.
+
+## Extraction Workflow
+
+When Notarius is omitted or disabled, `extract` records an explicit skipped
+outcome with reason `notarius_disabled` and no outputs. A later invocation
+reconsiders the skipped stage, so enabling Notarius does not require force.
+
+When Notarius extraction is enabled, the stage consumes the final trimmed JSON
+and preserves the complete validated Notarius bundle at:
+
+- `artifacts/notarius/{narratio_run_id}/`
+
+The directory is immutable once promoted. Configured lanes become
+`narratio.extraction.<name>` sources for Scriptorium and explicit publish rules;
+the bundle and `index.json` are retained for audit and resume validation but
+are not selectable or published implicitly.
+
+Starting a replacement clears the previous extraction payload from the current
+session-stage record. If that replacement fails or self-skips, the current
+record does not fall back to the earlier outputs. The earlier run manifest and
+immutable bundle remain available for inspection, but downstream resolution
+requires a new current successful extraction record.
+
+Atomic Notarius bundle promotion is supported on Linux, macOS, and Windows.
+On other operating systems, extraction fails before copying the bundle into a
+temporary promotion tree because Narratio has no verified atomic no-replace
+directory primitive there. This is an extraction limitation, not a broader
+platform-support guarantee for every Narratio workflow.
+
+Run-local diagnostics are:
+
+- `runs/{run_id}/extract/notarius.receipt.json`
+- `runs/{run_id}/extract/notarius.stderr.log`
+- `runs/{run_id}/extract/notarius-output/` before durable promotion
+
+The run-record upload excludes the complete
+`extract/notarius-output/**` subtree. The receipt and stderr files remain
+eligible run-record diagnostics. The durable bundle is never scanned for
+implicit publication; only lanes named by explicit `pipeline.publish.outputs`
+rules are uploaded.
+
+To intentionally replace the current extraction result, run:
+
+```bash
+narratio run-stage extract 2026-04-04 --force
+```
+
+Narratio automatically reruns extraction when its recorded invocation contract
+or durable output validation changes. It cannot fingerprint configuration
+files, profiles, prompts, modules, or references loaded transitively by
+Notarius. Force extraction after changing any of those inputs, even when the
+top-level Narratio and Notarius config paths remain the same. A forced extract
+marks successful downstream stages stale. Ordinary extraction failures or
+outcome changes also stale affected downstream stages, while an identical
+repeated `notarius_disabled` self-skip does not repeatedly invalidate them.
 
 ## Publish Workflow
 
@@ -119,8 +182,10 @@ narratio run-stage publish 2026-04-04 --force
 
 Publish commit model:
 
-- uploads run files under `{session_prefix}/runs/{run_id}/`;
-- uploads configured published outputs;
+- uploads eligible run files under `{session_prefix}/runs/{run_id}/`, excluding
+  audio and the run-local Notarius staging bundle;
+- uploads configured published outputs, including only explicitly configured
+  extraction lanes;
 - uploads `previous/**` cache files when present;
 - writes `current/manifest.json`;
 - writes `current/run_id.txt` last.
@@ -198,6 +263,10 @@ Durable session paths:
 - `config/**`
 - `runs/**`
 
+Validated Notarius bundles live below `artifacts/notarius/{run_id}/`; receipt,
+stderr, and pre-promotion output remain in the producing run's `extract`
+directory as described in [Extraction Workflow](#extraction-workflow).
+
 Run-local layout:
 
 - `runs/{run_id}/{stage}/outputs`

docs/policy/architecture.md

@@ -17,7 +17,8 @@ their domains:
 
 - WhisperX performs transcription;
 - Seriatim performs deterministic transcript processing and rendering;
-- Audita performs transcript correction and polishing; and
+- Audita performs transcript correction and polishing;
+- Notarius extracts validated structured artifact bundles; and
 - Scriptorium executes prompts and produces configured artifacts.
 
 Narratio owns orchestration, configuration resolution, session and run state,
@@ -51,9 +52,9 @@ HTTP, subprocess, notification, and object-storage mechanics, including command
 construction, transport behavior, provider response handling, and external
 error adaptation. External dependency types must remain inside the adapter that
 owns them unless that dependency is the adapter's explicit public contract.
-WhisperX HTTP behavior, Seriatim, Audita, and Scriptorium command construction,
-notification transport, and object-storage SDK details remain behind these
-boundaries.
+WhisperX HTTP behavior, Seriatim, Audita, Notarius, and Scriptorium command
+construction, notification transport, and object-storage SDK details remain
+behind these boundaries.
 
 State and path services must not infer stage policy. Storage implementations
 receive explicit bucket-relative keys and do not infer campaign, session, run,
@@ -89,6 +90,13 @@ should preserve enough local state and diagnostics for inspection, recovery,
 and resume. Forcing an upstream stage invalidates succeeded downstream work
 according to the canonical stage order.
 
+A stage may explicitly self-skip with a stable reason and no outputs. That
+outcome is persisted, clears older outputs owned by the stage, and is
+reconsidered on a later invocation. A stage may also validate whether an
+otherwise successful recorded result is still resumable; an obsolete result
+is staled and rerun, while an unsafe condition that prevents a sound decision
+stops execution.
+
 Shared behavior should live behind a narrow service or helper with one clear
 owner. Stages must not reach across boundaries or reproduce adapter, manifest,
 artifact, or path policy ad hoc.
@@ -141,6 +149,9 @@ not reconstruct canonical paths through scattered string concatenation.
 Artifact resolution is deterministic and manifest-aware. Producers materialize
 canonical outputs before reporting success, and consumers resolve declared
 artifact identities rather than infer files from unrelated directory contents.
+External artifact bundles become current only through validated immutable
+promotion and manifest records; directory presence alone never establishes
+availability.
 
 Writes, moves, replacements, and deletions must use narrow, explicit,
 root-confined destinations. Symlinks, traversal, broad roots, and ambiguous

docs/roadmap/notarius-extract-stage.md

@@ -1,379 +0,0 @@
-# Notarius Extraction Stage
-
-## Status
-
-Proposed.
-
-## Purpose
-
-Add a first-class Narratio `extract` stage that runs Notarius against the
-session's final trimmed transcript, validates and collects the resulting
-structured D&D artifacts, and registers those artifacts for later use by the
-`analyze` and `publish` stages.
-
-This feature should integrate Notarius through Narratio's existing stage,
-adapter, manifest, workspace, and artifact-catalog boundaries. It must not turn
-Narratio into a generic workflow engine or a second configuration language for
-Notarius pipelines.
-
-## User Outcome
-
-An operator can enable one configured Notarius pipeline for a Narratio
-campaign. During a normal run, Narratio will:
-
-1. finish producing the session transcript tiers;
-2. invoke Notarius once with the final trimmed Seriatim JSON transcript;
-3. collect and validate the configured structured artifact lanes;
-4. record their exact files and provenance in the Narratio manifest; and
-5. make those artifacts selectable as inputs to Scriptorium artifacts in the
-   later `analyze` stage.
-
-The maintained D&D example should demonstrate all ten lanes emitted by
-Notarius's complete `dnd-session` pipeline.
-
-## Target Stage Architecture
-
-### Canonical Order
-
-The canonical stage order becomes:
-
-```text
-prepare -> transcribe -> merge -> polish -> normalize -> trim -> render
-        -> extract -> analyze -> publish -> notify
-```
-
-`extract` is deliberately after all transcript-producing stages and before
-analysis. Its source document is the manifest-resolved
-`narratio.transcript.final_trimmed` artifact, normally
-`transcripts/final.trimmed.json`. It does not consume rendered Markdown.
-
-Adding the stage must update full-plan construction, explicit stage selection,
-downstream invalidation, prerequisite checks, resume behavior, run manifests,
-CLI stage validation and help, and every canonical-stage inventory. Forcing an
-upstream transcript stage must stale a previously successful `extract` stage
-and its downstream stages. Forcing `extract` must stale `analyze`, `publish`,
-and `notify` according to existing rules.
-
-### Stage Boundary
-
-The stage owns Narratio policy and state transitions:
-
-- resolve the final trimmed transcript through the runtime artifact catalog;
-- build a Narratio-level Notarius request from validated configuration and
-  run-local paths;
-- call a narrow Notarius adapter;
-- apply the configured required-output policy;
-- materialize the validated bundle into its canonical session location;
-- return manifest-ready artifact references and bounded metadata; and
-- fail without marking the stage successful when any required contract or
-  materialization step fails.
-
-The stage must not construct subprocess arguments, infer Notarius output
-filenames, parse provider logs, or decode individual D&D payload bodies.
-
-### Adapter Boundary
-
-Add a dedicated Notarius adapter package with a small interface, production
-subprocess implementation, and test fake. Its request should contain only the
-resolved Notarius binary, configuration path, pipeline ID, transcript path,
-output root, working directory, timeout, and process-log destinations needed
-for one run.
-
-The adapter owns:
-
-- optional `notarius config validate` preflight for the configured pipeline;
-- exact `notarius run ... --json` argument construction;
-- stdout and stderr separation;
-- context cancellation and timeout propagation through Narratio's shared
-  subprocess boundary;
-- exit-status handling;
-- decoding the `notarius.run-result.v1` success receipt;
-- receipt and index path-confinement checks;
-- decoding `index.json` and resolving descriptor paths safely beneath the
-  reported output directory; and
-- returning a transport-neutral result containing the bundle location,
-  receipt summary, lane descriptors, pipeline-wide descriptors, warnings and
-  rejection locations, and diagnostic log paths.
-
-Only exit status zero permits receipt decoding. Receipt, index, or descriptor
-paths that are absolute where a logical relative path is required, or that
-escape their owning root, are integration failures. Unknown fields in a
-supported receipt or index schema should be tolerated. Unsupported schema
-versions and incompatible descriptor metadata should fail clearly.
-
-The adapter must not write Narratio manifests, choose required lanes, decide
-analysis inputs, or contain D&D domain logic.
-
-## Configuration Contract
-
-Add a strict optional `pipeline.notarius` configuration section. Omission or
-`enabled: false` keeps the current workflow usable and causes `extract` to
-self-skip without outputs.
-
-The section should provide:
-
-- `enabled`: explicit opt-in;
-- `binary`: Notarius executable, defaulting to `notarius`;
-- `config_path`: required when enabled;
-- `pipeline_id`: required when enabled;
-- `timeout`: a positive stage timeout with a documented default;
-- `working_directory`: optional explicit subprocess working directory,
-  defaulting to the directory containing `config_path`; and
-- an `outputs` map defining the Notarius lane artifacts Narratio promises to
-  collect.
-
-Each output-map key is a stable Narratio extraction key. Each value must define:
-
-- the exact Notarius `lane_id`;
-- the expected `media_type`;
-- the expected `schema_id`;
-- the expected `schema_version`; and
-- optionally an expected `module_key` when the operator needs to constrain the
-  producing module as part of compatibility.
-
-Narratio derives the downstream source ID
-`narratio.extraction.<output-key>` from the map key. Keys and lane IDs must be
-non-empty, unique after normalization, path-safe under the existing artifact
-policy, and collision-free with built-in and configured artifact identities.
-Every configured output is required: a successful Notarius process that omits
-one, rejects it, or reports incompatible descriptor metadata fails the
-`extract` stage.
-
-This explicit map keeps Narratio's consumer contract stable when a Notarius
-lane ID or schema changes and avoids hard-coding the current D&D family into a
-generic adapter. It also replaces a separate `required_lanes` list, which would
-duplicate configuration.
-
-Narratio should not reproduce Notarius lane selection, references, LLM
-profiles, model settings, retries, concurrency, or prompt configuration. Those
-remain in the referenced Notarius configuration. Narratio should not expose a
-runtime lane-selection flag for `extract`; one stage invocation runs the
-configured Notarius pipeline as a unit.
-
-All configured paths should become absolute during Narratio configuration
-resolution. The deterministic default working directory allows a Notarius
-profile path relative to that directory, but operator documentation should
-still recommend absolute deployment paths where practical. Notarius reference
-paths continue to follow Notarius's own configuration-relative rules.
-
-## Output And Artifact Model
-
-### Canonical Bundle
-
-Run Notarius against a run-local output root. After all configured descriptors
-are validated, materialize the contents of the exact run-specific Notarius
-bundle into a fixed canonical session directory:
-
-```text
-artifacts/notarius/
-```
-
-Preserve its relative layout, including `index.json`, `manifest.json`,
-`rejected.json`, `warnings.json`, `lanes/`, and any indexed `chunk-map.json` or
-`evidence-context.json`. Materialize the complete directory as one narrow,
-transactional replacement so a failed or interrupted rerun cannot mix files
-from different Notarius runs.
-
-The raw subprocess receipt and stderr log belong in the run-local `extract`
-report and log directories. The raw receipt identifies the original run-local
-Notarius bundle and must not be rewritten to pretend that the canonical copy
-was its original `output_directory`. Narratio's manifest is the durable ledger
-for the canonical materialized paths.
-
-### Registered Artifact Sources
-
-For each configured output, locate the lane through the canonical copy of
-`index.json` and record a manifest artifact with:
-
-- source ID `narratio.extraction.<output-key>`;
-- canonical lane-file path discovered from the index;
-- producer stage and Narratio run ID;
-- checksum;
-- Notarius lane ID; and
-- descriptor media type, schema identity/version, and module key when present.
-
-If the current manifest model cannot carry descriptor compatibility metadata,
-extend its artifact metadata in a backward-tolerant way rather than encoding
-that information in filenames or source IDs.
-
-Also record the canonical Notarius index as a stage output or stage metadata so
-operators can discover the complete bundle, including non-lane artifacts. The
-configured lane sources are the stable interface for analysis; the index and
-bundle remain the provenance and inspection interface.
-
-## Analysis And Publish Integration
-
-Extend the runtime artifact catalog and configured Scriptorium input validation
-so an enabled analysis artifact can declare, for example:
-
-```yaml
-inputs:
-  npc_registry:
-    source: narratio.extraction.npc_registry
-```
-
-Resolution must remain manifest-first and verify that the recorded artifact
-was produced by a successful current `extract` stage. A required extraction
-source that is unavailable must fail analysis with guidance to configure or
-rerun `extract`; an optional source may be omitted according to the existing
-Scriptorium input contract.
-
-Publish source resolution should accept configured
-`narratio.extraction.<output-key>` sources through the same artifact catalog so
-operators may publish selected structured artifacts without manually copying
-paths. The existing `--artifacts` flag remains scoped to Scriptorium artifact
-selection and must not partially execute the Notarius pipeline.
-
-No current-session analysis artifact should consume an incidental file from a
-failed, stale, skipped, or superseded extraction run.
-
-## Failure, Skip, Resume, And Diagnostics
-
-- Missing or invalid enabled Notarius configuration fails configuration
-  validation before stage execution where statically discoverable.
-- A disabled or absent Notarius configuration makes `extract` skip with clear
-  stage metadata and no new outputs.
-- A missing or invalid final trimmed transcript fails `extract` before starting
-  Notarius.
-- Preflight failure, nonzero Notarius exit, cancellation, timeout, malformed or
-  unsupported receipt/index data, unsafe paths, incompatible descriptors,
-  rejected required outputs, or missing configured lanes fails the entire
-  stage.
-- Process success does not override Narratio's required-output policy.
-- A failed run retains bounded run-local receipt bytes, stderr, and the
-  unpublished Notarius bundle for diagnosis, subject to Narratio's existing
-  sensitive-data and cleanup policies.
-- The canonical bundle and manifest artifacts are updated only after complete
-  validation and materialization.
-- Resume skips a succeeded, non-stale `extract` stage only when its
-  manifest-recorded canonical index and configured lane outputs still validate.
-- Force and staleness behavior follows the ordinary stage contract; it must not
-  depend on merely finding `artifacts/notarius/` on disk.
-
-Transcripts, Notarius outputs, evidence context, manifests, receipts, and logs
-are private campaign material. Subprocess arguments and manifest metadata must
-not contain secrets. Credentials remain in the environment or in mechanisms
-owned by Notarius and PromptKit.
-
-## Maintained D&D Example
-
-Add or update a Narratio example that enables Notarius's complete
-`dnd-session` pipeline and maps these ten required lanes to stable extraction
-keys:
-
-| Output key | Notarius lane ID |
-| --- | --- |
-| `item_registry` | `item-registry` |
-| `npc_registry` | `npc-registry` |
-| `location_registry` | `location-registry` |
-| `scene_descriptions` | `scene-descriptions` |
-| `item_occurrences` | `item-occurrences` |
-| `spells` | `spells` |
-| `combat_turns` | `combat-turns` |
-| `npc_occurrences` | `npc-occurrences` |
-| `location_occurrences` | `location-occurrences` |
-| `enemy_events` | `enemy-events` |
-
-The example must include each lane's current media type and schema identity
-from Notarius's published contracts. It should also demonstrate at least one
-Scriptorium analysis artifact consuming one or more
-`narratio.extraction.*` sources. The example must use placeholders and relative
-paths suitable for the example tree, contain no credentials, and pass the
-repository's configuration validation tests.
-
-## Compatibility Policy
-
-The initial integration baseline is the public subprocess contract available
-in Notarius v0.3.0:
-
-- successful JSON receipt schema `notarius.run-result.v1`;
-- production JSON bundle discovery through `index.json`; and
-- the schema IDs and versions explicitly configured for required lanes.
-
-Runtime compatibility should be decided from those published contracts, not
-from textual parsing of `notarius --version`. New optional receipt or index
-fields must not break Narratio. An unsupported receipt version or lane schema
-must fail before the artifact is registered for analysis.
-
-## Documentation Deliverables When Implemented
-
-Update current-behavior documentation in the same change that implements the
-feature:
-
-- add `docs/integrations/notarius.md` for the external CLI, receipt, bundle,
-  and adapter contract, linking to Notarius's canonical documentation;
-- add `docs/internal/stage-extract.md` for stage inputs, outputs, collaborators,
-  state transitions, failures, and focused tests;
-- update `docs/internal/adapters.md`, `docs/internal/artifacts.md`,
-  `docs/internal/manifest.md`, and the internal stage inventory;
-- update `docs/policy/architecture.md` to list Notarius among isolated external
-  systems and preserve the adapter/stage boundary;
-- update `docs/config.md`, `docs/cli.md`, `docs/operations.md`,
-  `docs/troubleshooting.md`, `README.md`, and maintained examples only to the
-  extent their canonical scopes require; and
-- update `docs/development.md` only to the extent its canonical contributor
-  routing scope requires.
-
-Outside this roadmap, do not describe `extract`, Notarius configuration, or
-`narratio.extraction.*` sources as implemented until the code exists.
-
-## Testing And Validation Expectations
-
-Implementation should provide focused tests for:
-
-- strict configuration decoding, defaults, required fields, path resolution,
-  output-map validation, normalized-key collisions, and example loading;
-- exact stage order, selection, downstream staleness, resume, force, and
-  prerequisite behavior;
-- adapter command construction, deterministic working directory, environment
-  inheritance, stdout/stderr separation, cancellation, timeout, and nonzero
-  exits;
-- supported and unsupported receipt versions, unknown optional fields,
-  malformed receipts, index decoding, and path escapes at every boundary;
-- descriptor lookup by lane ID rather than filename, expected metadata checks,
-  missing/rejected configured lanes, and tolerated unconfigured lanes;
-- run-local execution, transactional canonical-bundle replacement, checksums,
-  failed-run preservation, and manifest recording;
-- artifact-catalog resolution from `narratio.extraction.*` into analysis and
-  publish, including required, optional, missing, stale, and skipped cases; and
-- end-to-end stage execution with a fake Notarius adapter, without live LLM or
-  external subprocess requirements in the ordinary test suite.
-
-Run the repository-wide Go tests, vet, build, and maintained example validation
-after focused tests pass.
-
-## Acceptance Criteria
-
-- `extract` is a first-class transactional stage between `render` and
-  `analyze` everywhere Narratio models stage order or state.
-- Narratio invokes Notarius only through a narrow, tested adapter.
-- The stage consumes the manifest-resolved final trimmed Seriatim transcript.
-- The Notarius configuration remains owned by Notarius; Narratio configures
-  only invocation and its downstream consumer contract.
-- Every configured output is discovered through the receipt and `index.json`,
-  contract-checked, materialized transactionally, and recorded with a stable
-  `narratio.extraction.*` source ID.
-- The complete D&D example maps all ten current lanes and passes strict config
-  validation.
-- Analysis can consume extraction sources through the existing artifact input
-  model, and publish can select them through the artifact catalog.
-- Failed, partial, rejected, unsafe, stale, or incompatible output never becomes
-  a current analysis input.
-- Resume and force behavior remains manifest-driven.
-- Documentation accurately describes the implemented stage, adapter,
-  configuration, operations, and compatibility boundary without duplicating
-  Notarius's canonical schemas.
-
-## Non-Goals
-
-- Reimplementing Notarius extraction, prompts, schemas, references, retries,
-  profiles, or lane orchestration in Narratio.
-- Allowing one Narratio run to invoke arbitrary extractor programs or multiple
-  Notarius pipelines.
-- Making `extract` a configurable DAG or folding it into the Scriptorium
-  `analyze` stage.
-- Partially selecting Notarius lanes through Narratio's `--artifacts` flag.
-- Decoding D&D payload bodies in the generic Notarius adapter.
-- Supporting previous-session extraction artifacts in the initial feature.
-- Requiring live Notarius, PromptKit, an LLM provider, or external services in
-  the ordinary unit test suite.

docs/troubleshooting.md

@@ -117,6 +117,147 @@ Safe fix:
 
 Relevant reference: [CLI artifact selection](./cli.md).
 
+## Notarius executable missing
+
+Symptom:
+
+- extraction fails while resolving or starting the Notarius executable.
+
+Likely causes:
+
+- `pipeline.notarius.binary` is not installed, executable, or on `PATH`;
+- a configured executable path is wrong.
+
+Safe fix:
+
+- install a compatible Notarius release or correct the binary setting, then
+  rerun extraction.
+
+Relevant references: [Notarius configuration](./config.md#notarius-output-entries)
+and [Notarius integration](./integrations/notarius.md).
+
+## Notarius exits nonzero
+
+Symptom:
+
+- extraction reports a Notarius exit error instead of a receipt.
+
+Diagnostics:
+
+- inspect `runs/{run_id}/extract/notarius.stderr.log`; stdout is reserved for
+  the receipt and is not merged with diagnostics.
+
+Safe fix:
+
+- correct the reported Notarius pipeline, input, provider, or configuration
+  failure and rerun extraction. Do not edit a staged output bundle into place.
+
+After a failed replacement, an older immutable bundle may still exist even
+though the current session manifest has no successful extraction payload. This
+is expected audit state, not a signal to relink the old bundle manually.
+
+Relevant reference: [Operations: Extraction Workflow](./operations.md#extraction-workflow).
+
+## Atomic Notarius promotion unsupported
+
+Symptom:
+
+- extraction fails with `atomic no-replace directory promotion is unsupported`
+  before a durable bundle or temporary promotion tree is created.
+
+Likely cause:
+
+- Narratio is running on an operating system other than Linux, macOS, or
+  Windows, where the required atomic no-replace directory primitive has not
+  been implemented and verified.
+
+Safe fix:
+
+- run extraction on Linux, macOS, or Windows. Do not replace the atomic commit
+  with a manual copy or move; the session manifest must never observe a partial
+  or overwritten bundle.
+
+This is an extraction-specific platform boundary, not a support statement for
+unrelated Narratio workflows. See
+[Operations: Extraction Workflow](./operations.md#extraction-workflow).
+
+## Notarius receipt or index incompatible
+
+Symptom:
+
+- extraction rejects the receipt schema, pipeline identity, bundle/index path,
+  lane descriptor, or payload path even though Notarius exited successfully.
+
+Likely causes:
+
+- Narratio and Notarius versions disagree on their consumer contract;
+- the configured pipeline or lane constraints are stale;
+- output paths escape the bundle or traverse symlinks.
+
+Safe fix:
+
+- compare installed Notarius output with the canonical Notarius contracts,
+  including receipt `index_file: index.json` and index management names
+  `manifest.json`, `rejected.json`, and `warnings.json`; align
+  `pipeline.notarius` constraints and rerun. Do not bypass confinement or schema
+  checks.
+
+Relevant reference: [Notarius integration](./integrations/notarius.md).
+
+## Required Notarius lane rejected or missing
+
+Symptom:
+
+- extraction fails because a configured lane is rejected, missing, duplicated,
+  or incompatible, including after a zero exit.
+
+Safe fix:
+
+- inspect the Notarius diagnostic log and bundle rejection/warning information;
+- correct the Notarius module or the exact declared lane contract;
+- remove an output declaration only if downstream consumers genuinely no longer
+  require that source, then rerun extraction.
+
+Every configured output is required. Narratio does not promote a partial result.
+
+## Extraction resume invalidated
+
+Symptom:
+
+- a previously successful extraction runs again during ordinary continuation.
+
+Likely causes:
+
+- the executable/config path, pipeline ID, timeout, working directory, or
+  configured output contracts changed;
+- the durable bundle, index, lane set, provenance, regular-file status, or
+  checksum no longer validates.
+
+Safe fix:
+
+- allow the automatic rerun after verifying the current configuration. Treat
+  an unsafe path or symlink error as filesystem corruption or tampering and
+  investigate it rather than replacing files manually.
+
+## Notarius transitive configuration changed
+
+Symptom:
+
+- Notarius profiles, prompts, modules, imported files, or references changed,
+  but Narratio still considers the previous extraction resumable.
+
+Safe fix:
+
+```bash
+narratio run-stage extract 2026-04-04 --force
+```
+
+Narratio fingerprints its invocation contract, not the contents of transitive
+Notarius inputs. Always force extraction after changing them; downstream
+successful stages are then marked stale normally.
+
+Relevant reference: [Operations: Extraction Workflow](./operations.md#extraction-workflow).
+
 ## Previous-session artifact input missing
 
 Symptom:

examples/README.md

@@ -13,6 +13,8 @@ in the [configuration reference](../docs/config.md).
   external tools, and configured Scriptorium artifacts.
 - [Full annotated pipeline](pipeline.full.annotated.yml): every implemented
   pipeline section with explanatory comments.
+- [Extraction subset pipeline](pipeline.extraction-subset.yml): a focused
+  Scriptorium artifact consuming only three declared Notarius lanes.
 
 The existing `internal/config` example test loads and validates each pipeline
 with the sample campaign and a compatible local- or S3-audio session.

examples/pipeline.extraction-subset.yml

@@ -0,0 +1,55 @@
+# Purpose-specific extraction example: a Scriptorium session brief consumes
+# only the three Notarius lanes it needs.
+
+campaigns:
+  root: /usr/local/share/narratio/campaigns
+  default_campaign_id: sample-campaign
+
+whisperx:
+  transcribe_url: "https://transcription.example.com/transcribe"
+
+notarius:
+  enabled: true
+  binary: notarius
+  config_path: /usr/local/etc/notarius/config.yml
+  pipeline_id: dnd-session
+  timeout: 3h
+  outputs:
+    npc_registry:
+      lane_id: npc-registry
+      media_type: application/json
+      schema_id: notarius.dnd.npc_registry
+      schema_version: v1
+      module_key: dnd/npc-registry
+    location_registry:
+      lane_id: location-registry
+      media_type: application/json
+      schema_id: notarius.dnd.location_registry
+      schema_version: v1
+      module_key: dnd/location-registry
+    scene_descriptions:
+      lane_id: scene-descriptions
+      media_type: application/json
+      schema_id: notarius.dnd.scene_descriptions
+      schema_version: v1
+      module_key: dnd/scene-descriptions
+
+scriptorium:
+  binary: scriptorium
+  config_path: /usr/local/etc/scriptorium/config.yml
+  artifacts:
+    session_brief:
+      enabled: true
+      prompt_id: dnd.session_brief
+      output_path: artifacts/session_brief.md
+      inputs:
+        npcs:
+          source: narratio.extraction.npc_registry
+          required: true
+        locations:
+          source: narratio.extraction.location_registry
+          required: true
+        scenes:
+          source: narratio.extraction.scene_descriptions
+          required: true
+

examples/pipeline.full.annotated.yml

@@ -60,6 +60,11 @@ publish:
     - source: narratio.artifact.player_handout
       dest: artifacts/player_handout.md
       required: false
+    # Extraction lanes publish only when named explicitly; the bundle and index
+    # are never implicit publish sources.
+    - source: narratio.extraction.npc_registry
+      dest: artifacts/extraction/npc-registry.json
+      required: true
 
 whisperx:
   # Required.
@@ -123,6 +128,78 @@ trim:
   seriatim:
     report: false
 
+notarius:
+  # Optional structured extraction between trim and render.
+  enabled: true
+  binary: notarius
+  config_path: /usr/local/etc/notarius/config.yml
+  pipeline_id: dnd-session
+  timeout: 3h
+  working_directory: /usr/local/etc/notarius
+  # Each key creates source narratio.extraction.<key>. These constraints match
+  # the current Notarius D&D lane contracts; update them with Notarius.
+  outputs:
+    item_registry:
+      lane_id: item-registry
+      media_type: application/json
+      schema_id: notarius.dnd.item_registry
+      schema_version: v1
+      module_key: dnd/item-registry
+    npc_registry:
+      lane_id: npc-registry
+      media_type: application/json
+      schema_id: notarius.dnd.npc_registry
+      schema_version: v1
+      module_key: dnd/npc-registry
+    location_registry:
+      lane_id: location-registry
+      media_type: application/json
+      schema_id: notarius.dnd.location_registry
+      schema_version: v1
+      module_key: dnd/location-registry
+    scene_descriptions:
+      lane_id: scene-descriptions
+      media_type: application/json
+      schema_id: notarius.dnd.scene_descriptions
+      schema_version: v1
+      module_key: dnd/scene-descriptions
+    item_occurrences:
+      lane_id: item-occurrences
+      media_type: application/json
+      schema_id: notarius.dnd.item_occurrences
+      schema_version: v1
+      module_key: dnd/item-occurrences
+    spells:
+      lane_id: spells
+      media_type: application/json
+      schema_id: notarius.dnd.spells
+      schema_version: v1
+      module_key: dnd/spells
+    combat_turns:
+      lane_id: combat-turns
+      media_type: application/json
+      schema_id: notarius.dnd.combat_turns
+      schema_version: v1
+      module_key: dnd/combat-turns
+    npc_occurrences:
+      lane_id: npc-occurrences
+      media_type: application/json
+      schema_id: notarius.dnd.npc_occurrences
+      schema_version: v1
+      module_key: dnd/npc-occurrences
+    location_occurrences:
+      lane_id: location-occurrences
+      media_type: application/json
+      schema_id: notarius.dnd.location_occurrences
+      schema_version: v1
+      module_key: dnd/location-occurrences
+    enemy_events:
+      lane_id: enemy-events
+      media_type: application/json
+      schema_id: notarius.dnd.enemy_events
+      schema_version: v1
+      module_key: dnd/enemy-events
+
 scriptorium:
   binary: scriptorium
   config_path: /usr/local/etc/scriptorium/config.yml

go.mod

@@ -7,6 +7,7 @@ require (
 	github.com/aws/aws-sdk-go-v2/credentials v1.19.16
 	github.com/aws/aws-sdk-go-v2/service/s3 v1.101.0
 	github.com/aws/smithy-go v1.25.1
+	golang.org/x/sys v0.47.0
 	gopkg.in/yaml.v3 v3.0.1
 )
 

go.sum

@@ -34,6 +34,8 @@ github.com/aws/aws-sdk-go-v2/service/sts v1.42.1 h1:F/M5Y9I3nwr2IEpshZgh1GeHpOIt
 github.com/aws/aws-sdk-go-v2/service/sts v1.42.1/go.mod h1:mTNxImtovCOEEuD65mKW7DCsL+2gjEH+RPEAexAzAio=
 github.com/aws/smithy-go v1.25.1 h1:J8ERsGSU7d+aCmdQur5Txg6bVoYelvQJgtZehD12GkI=
 github.com/aws/smithy-go v1.25.1/go.mod h1:YE2RhdIuDbA5E5bTdciG9KrW3+TiEONeUWCqxX9i1Fc=
+golang.org/x/sys v0.47.0 h1:o7XGOvZQCADBQQ4Y7VNq2dRWQR7JmOUW8Kxx4ZsNgWs=
+golang.org/x/sys v0.47.0/go.mod h1:4GL1E5IUh+htKOUEOaiffhrAeqysfVGipDYzABqnCmw=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=

internal/adapters/notarius/fake.go

@@ -0,0 +1,22 @@
+package notarius
+
+import "context"
+
+// FakeRunner is a configurable in-memory runner for stage tests.
+type FakeRunner struct {
+	Requests []RunRequest
+	Result   RunResult
+	Err      error
+}
+
+// Run records the request and returns the configured result or error.
+func (f *FakeRunner) Run(ctx context.Context, req RunRequest) (RunResult, error) {
+	if err := ctx.Err(); err != nil {
+		return RunResult{}, err
+	}
+	f.Requests = append(f.Requests, req)
+	if f.Err != nil {
+		return RunResult{}, f.Err
+	}
+	return f.Result, nil
+}

internal/adapters/notarius/runner.go

@@ -0,0 +1,108 @@
+// Package notarius declares the adapter contract for Notarius CLI invocations.
+package notarius
+
+import (
+	"context"
+	"time"
+)
+
+const ReceiptSchemaVersion = "notarius.run-result.v1"
+
+// Runner is the adapter boundary for a complete Notarius pipeline invocation.
+type Runner interface {
+	Run(ctx context.Context, req RunRequest) (RunResult, error)
+}
+
+// RunRequest contains the resolved inputs and diagnostic destinations for one invocation.
+type RunRequest struct {
+	Binary           string
+	ConfigPath       string
+	PipelineID       string
+	InputPath        string
+	OutputRoot       string
+	WorkingDirectory string
+	ReceiptPath      string
+	LogPath          string
+	Timeout          time.Duration
+}
+
+// Receipt is the transport-neutral successful run receipt.
+type Receipt struct {
+	SchemaVersion         string
+	RunID                 string
+	PipelineID            string
+	OutputDirectory       string
+	IndexFile             string
+	NormalizedOutputCount int
+	RejectedOutputCount   int
+	WarningCount          int
+	ValidationStatus      string
+	DebugDirectory        string
+}
+
+// LaneDescriptor identifies one normalized lane payload discovered through the index.
+type LaneDescriptor struct {
+	LaneID        string
+	File          string
+	Path          string
+	MediaType     string
+	ModuleKey     string
+	SchemaID      string
+	SchemaName    string
+	SchemaVersion string
+}
+
+// PipelineDescriptor identifies a pipeline-wide artifact discovered through the index.
+type PipelineDescriptor struct {
+	ArtifactKind  string
+	File          string
+	Path          string
+	MediaType     string
+	SchemaID      string
+	SchemaName    string
+	SchemaVersion string
+}
+
+// Index describes the validated bundle-management and artifact paths.
+type Index struct {
+	Path            string
+	ManifestFile    string
+	ManifestPath    string
+	RejectedFile    string
+	RejectedPath    string
+	WarningsFile    string
+	WarningsPath    string
+	Lanes           []LaneDescriptor
+	ChunkMap        *PipelineDescriptor
+	EvidenceContext *PipelineDescriptor
+}
+
+// RejectionSummary retains structured rejection identity without free-form messages.
+type RejectionSummary struct {
+	Stage         string
+	StepID        string
+	LaneID        string
+	ModuleKey     string
+	ChunkID       string
+	ValidatorName string
+	ReasonCode    string
+}
+
+// WarningSummary retains structured warning identity without free-form messages.
+type WarningSummary struct {
+	Scope      string
+	ReasonCode string
+}
+
+// RunResult describes a successfully decoded and validated Notarius bundle.
+type RunResult struct {
+	Receipt     Receipt
+	Index       Index
+	BundleRoot  string
+	ReceiptPath string
+	LogPath     string
+	ExitCode    int
+	Duration    time.Duration
+	Rejections  []RejectionSummary
+	Warnings    []WarningSummary
+}

internal/adapters/notarius/subprocess.go

@@ -0,0 +1,524 @@
+package notarius
+
+import (
+	"context"
+	"encoding/json"
+	"errors"
+	"fmt"
+	"io"
+	"os"
+	"path/filepath"
+	"strings"
+
+	"gitea.maximumdirect.net/eric/narratio/internal/adapters/subprocess"
+	"gitea.maximumdirect.net/eric/narratio/internal/pathsafe"
+)
+
+const (
+	maxReceiptBytes       = 1 << 20
+	maxIndexBytes         = 4 << 20
+	maxSummaryBytes       = 4 << 20
+	canonicalIndexFile    = "index.json"
+	canonicalManifestFile = "manifest.json"
+	canonicalRejectedFile = "rejected.json"
+	canonicalWarningsFile = "warnings.json"
+)
+
+type subprocessRun func(context.Context, subprocess.RunRequest) (subprocess.RunResult, error)
+
+// SubprocessRunner invokes Notarius through its public CLI.
+type SubprocessRunner struct {
+	run subprocessRun
+}
+
+// NewSubprocessRunner constructs a production Notarius subprocess runner.
+func NewSubprocessRunner() *SubprocessRunner {
+	return &SubprocessRunner{run: subprocess.Run}
+}
+
+// Run executes a complete Notarius pipeline and discovers its published bundle.
+func (r *SubprocessRunner) Run(ctx context.Context, req RunRequest) (RunResult, error) {
+	if r == nil || r.run == nil {
+		return RunResult{}, fmt.Errorf("notarius subprocess runner is nil")
+	}
+	if err := validateRunRequest(req); err != nil {
+		return RunResult{}, err
+	}
+
+	args := []string{
+		"run", req.PipelineID,
+		"--config", req.ConfigPath,
+		"--input", req.InputPath,
+		"--output-dir", req.OutputRoot,
+		"--json",
+	}
+	processResult, err := r.run(ctx, subprocess.RunRequest{
+		Executable:    req.Binary,
+		Args:          args,
+		WorkingDir:    req.WorkingDirectory,
+		Timeout:       req.Timeout,
+		StdoutLogPath: req.ReceiptPath,
+		StderrLogPath: req.LogPath,
+	})
+	baseResult := RunResult{
+		ReceiptPath: req.ReceiptPath,
+		LogPath:     req.LogPath,
+		ExitCode:    processResult.ExitCode,
+		Duration:    processResult.Duration,
+	}
+	if err != nil {
+		return baseResult, fmt.Errorf("run notarius pipeline %q: %w", req.PipelineID, err)
+	}
+
+	receipt, err := loadReceipt(req.ReceiptPath, req.PipelineID)
+	if err != nil {
+		return baseResult, err
+	}
+	bundleRoot, err := validateBundleRoot(req.OutputRoot, receipt.OutputDirectory)
+	if err != nil {
+		return baseResult, err
+	}
+	indexPath, err := resolveRegularFile(bundleRoot, receipt.IndexFile)
+	if err != nil {
+		return baseResult, fmt.Errorf("resolve receipt index file: %w", err)
+	}
+	index, err := loadIndex(bundleRoot, indexPath)
+	if err != nil {
+		return baseResult, err
+	}
+	rejections, err := loadRejections(index.RejectedPath)
+	if err != nil {
+		return baseResult, err
+	}
+	warnings, err := loadWarnings(index.WarningsPath)
+	if err != nil {
+		return baseResult, err
+	}
+
+	baseResult.Receipt = receipt
+	baseResult.Index = index
+	baseResult.BundleRoot = bundleRoot
+	baseResult.Rejections = rejections
+	baseResult.Warnings = warnings
+	return baseResult, nil
+}
+
+func validateRunRequest(req RunRequest) error {
+	if strings.TrimSpace(req.Binary) == "" {
+		return fmt.Errorf("notarius binary is required")
+	}
+	if strings.TrimSpace(req.PipelineID) == "" {
+		return fmt.Errorf("notarius pipeline id is required")
+	}
+	if req.Timeout <= 0 {
+		return fmt.Errorf("notarius timeout must be positive")
+	}
+	for label, path := range map[string]string{
+		"config":            req.ConfigPath,
+		"input":             req.InputPath,
+		"output root":       req.OutputRoot,
+		"working directory": req.WorkingDirectory,
+		"receipt":           req.ReceiptPath,
+		"log":               req.LogPath,
+	} {
+		if strings.TrimSpace(path) == "" {
+			return fmt.Errorf("notarius %s path is required", label)
+		}
+		if !filepath.IsAbs(path) {
+			return fmt.Errorf("notarius %s path must be absolute", label)
+		}
+	}
+	if filepath.Clean(req.ReceiptPath) == filepath.Clean(req.LogPath) {
+		return fmt.Errorf("notarius receipt and log paths must be different")
+	}
+	if err := requireRegularFile(req.ConfigPath); err != nil {
+		return fmt.Errorf("validate notarius config path: %w", err)
+	}
+	if err := requireRegularFile(req.InputPath); err != nil {
+		return fmt.Errorf("validate notarius input path: %w", err)
+	}
+	if err := requireDirectory(req.OutputRoot); err != nil {
+		return fmt.Errorf("validate notarius output root: %w", err)
+	}
+	if err := requireDirectory(req.WorkingDirectory); err != nil {
+		return fmt.Errorf("validate notarius working directory: %w", err)
+	}
+	if err := validateLogDestination(req.ReceiptPath); err != nil {
+		return fmt.Errorf("validate notarius receipt path: %w", err)
+	}
+	if err := validateLogDestination(req.LogPath); err != nil {
+		return fmt.Errorf("validate notarius log path: %w", err)
+	}
+	return nil
+}
+
+type receiptDocument struct {
+	SchemaVersion         string `json:"schema_version"`
+	RunID                 string `json:"run_id"`
+	PipelineID            string `json:"pipeline_id"`
+	OutputDirectory       string `json:"output_directory"`
+	IndexFile             string `json:"index_file"`
+	NormalizedOutputCount *int   `json:"normalized_output_count"`
+	RejectedOutputCount   *int   `json:"rejected_output_count"`
+	WarningCount          *int   `json:"warning_count"`
+	ValidationStatus      string `json:"validation_status"`
+	DebugDirectory        string `json:"debug_directory"`
+}
+
+func loadReceipt(path, pipelineID string) (Receipt, error) {
+	var document receiptDocument
+	if err := decodeBoundedJSON(path, maxReceiptBytes, &document); err != nil {
+		return Receipt{}, fmt.Errorf("decode notarius receipt: %w", err)
+	}
+	if document.SchemaVersion != ReceiptSchemaVersion {
+		return Receipt{}, fmt.Errorf("unsupported notarius receipt schema version %q", document.SchemaVersion)
+	}
+	if strings.TrimSpace(document.RunID) == "" || strings.TrimSpace(document.PipelineID) == "" ||
+		strings.TrimSpace(document.OutputDirectory) == "" || strings.TrimSpace(document.ValidationStatus) == "" ||
+		document.NormalizedOutputCount == nil ||
+		document.RejectedOutputCount == nil || document.WarningCount == nil {
+		return Receipt{}, fmt.Errorf("notarius receipt is missing required fields")
+	}
+	if document.IndexFile != canonicalIndexFile {
+		return Receipt{}, fmt.Errorf("notarius receipt index_file %q is incompatible; want %q", document.IndexFile, canonicalIndexFile)
+	}
+	if document.PipelineID != pipelineID {
+		return Receipt{}, fmt.Errorf("notarius receipt pipeline id %q does not match requested pipeline %q", document.PipelineID, pipelineID)
+	}
+	if *document.NormalizedOutputCount < 0 || *document.RejectedOutputCount < 0 || *document.WarningCount < 0 {
+		return Receipt{}, fmt.Errorf("notarius receipt counts must be non-negative")
+	}
+	if !filepath.IsAbs(document.OutputDirectory) {
+		return Receipt{}, fmt.Errorf("notarius receipt output directory must be absolute")
+	}
+	if document.DebugDirectory != "" && !filepath.IsAbs(document.DebugDirectory) {
+		return Receipt{}, fmt.Errorf("notarius receipt debug directory must be absolute when present")
+	}
+	return Receipt{
+		SchemaVersion:         document.SchemaVersion,
+		RunID:                 document.RunID,
+		PipelineID:            document.PipelineID,
+		OutputDirectory:       filepath.Clean(document.OutputDirectory),
+		IndexFile:             document.IndexFile,
+		NormalizedOutputCount: *document.NormalizedOutputCount,
+		RejectedOutputCount:   *document.RejectedOutputCount,
+		WarningCount:          *document.WarningCount,
+		ValidationStatus:      document.ValidationStatus,
+		DebugDirectory:        document.DebugDirectory,
+	}, nil
+}
+
+type indexDocument struct {
+	ManifestFile    string            `json:"manifest_file"`
+	OutputFiles     *[]laneDocument   `json:"output_files"`
+	RejectedFile    string            `json:"rejected_file"`
+	WarningsFile    string            `json:"warnings_file"`
+	ChunkMap        *pipelineDocument `json:"chunk_map"`
+	EvidenceContext *pipelineDocument `json:"evidence_context"`
+}
+
+type laneDocument struct {
+	LaneID        string `json:"lane_id"`
+	File          string `json:"file"`
+	MediaType     string `json:"media_type"`
+	ModuleKey     string `json:"module_key"`
+	SchemaID      string `json:"schema_id"`
+	SchemaName    string `json:"schema_name"`
+	SchemaVersion string `json:"schema_version"`
+}
+
+type pipelineDocument struct {
+	ArtifactKind  string `json:"artifact_kind"`
+	File          string `json:"file"`
+	MediaType     string `json:"media_type"`
+	SchemaID      string `json:"schema_id"`
+	SchemaName    string `json:"schema_name"`
+	SchemaVersion string `json:"schema_version"`
+}
+
+func loadIndex(bundleRoot, indexPath string) (Index, error) {
+	var document indexDocument
+	if err := decodeBoundedJSON(indexPath, maxIndexBytes, &document); err != nil {
+		return Index{}, fmt.Errorf("decode notarius index: %w", err)
+	}
+	for _, field := range []struct {
+		name string
+		got  string
+		want string
+	}{
+		{name: "manifest_file", got: document.ManifestFile, want: canonicalManifestFile},
+		{name: "rejected_file", got: document.RejectedFile, want: canonicalRejectedFile},
+		{name: "warnings_file", got: document.WarningsFile, want: canonicalWarningsFile},
+	} {
+		if field.got != field.want {
+			return Index{}, fmt.Errorf("notarius index %s %q is incompatible; want %q", field.name, field.got, field.want)
+		}
+	}
+	if document.OutputFiles == nil {
+		return Index{}, fmt.Errorf("notarius index is missing required output_files")
+	}
+
+	index := Index{
+		Path:         indexPath,
+		ManifestFile: document.ManifestFile,
+		RejectedFile: document.RejectedFile,
+		WarningsFile: document.WarningsFile,
+	}
+	var err error
+	if index.ManifestPath, err = resolveRegularFile(bundleRoot, index.ManifestFile); err != nil {
+		return Index{}, fmt.Errorf("resolve notarius manifest file: %w", err)
+	}
+	if index.RejectedPath, err = resolveRegularFile(bundleRoot, index.RejectedFile); err != nil {
+		return Index{}, fmt.Errorf("resolve notarius rejection file: %w", err)
+	}
+	if index.WarningsPath, err = resolveRegularFile(bundleRoot, index.WarningsFile); err != nil {
+		return Index{}, fmt.Errorf("resolve notarius warning file: %w", err)
+	}
+
+	seenLanes := make(map[string]struct{}, len(*document.OutputFiles))
+	for _, lane := range *document.OutputFiles {
+		if strings.TrimSpace(lane.LaneID) == "" || strings.TrimSpace(lane.File) == "" {
+			return Index{}, fmt.Errorf("notarius lane descriptors require lane_id and file")
+		}
+		if _, exists := seenLanes[lane.LaneID]; exists {
+			return Index{}, fmt.Errorf("notarius index contains duplicate lane id %q", lane.LaneID)
+		}
+		seenLanes[lane.LaneID] = struct{}{}
+		path, err := resolveRegularFile(bundleRoot, lane.File)
+		if err != nil {
+			return Index{}, fmt.Errorf("resolve notarius lane %q file: %w", lane.LaneID, err)
+		}
+		index.Lanes = append(index.Lanes, LaneDescriptor{
+			LaneID: lane.LaneID, File: lane.File, Path: path, MediaType: lane.MediaType,
+			ModuleKey: lane.ModuleKey, SchemaID: lane.SchemaID, SchemaName: lane.SchemaName,
+			SchemaVersion: lane.SchemaVersion,
+		})
+	}
+	if document.ChunkMap != nil {
+		index.ChunkMap, err = resolvePipelineDescriptor(bundleRoot, "chunk_map", *document.ChunkMap)
+		if err != nil {
+			return Index{}, err
+		}
+	}
+	if document.EvidenceContext != nil {
+		index.EvidenceContext, err = resolvePipelineDescriptor(bundleRoot, "evidence_context", *document.EvidenceContext)
+		if err != nil {
+			return Index{}, err
+		}
+	}
+	return index, nil
+}
+
+func resolvePipelineDescriptor(bundleRoot, label string, document pipelineDocument) (*PipelineDescriptor, error) {
+	if strings.TrimSpace(document.ArtifactKind) == "" || strings.TrimSpace(document.File) == "" ||
+		strings.TrimSpace(document.MediaType) == "" || strings.TrimSpace(document.SchemaID) == "" ||
+		strings.TrimSpace(document.SchemaName) == "" || strings.TrimSpace(document.SchemaVersion) == "" {
+		return nil, fmt.Errorf("notarius %s descriptor is missing required fields", label)
+	}
+	path, err := resolveRegularFile(bundleRoot, document.File)
+	if err != nil {
+		return nil, fmt.Errorf("resolve notarius %s file: %w", label, err)
+	}
+	return &PipelineDescriptor{
+		ArtifactKind: document.ArtifactKind, File: document.File, Path: path,
+		MediaType: document.MediaType, SchemaID: document.SchemaID,
+		SchemaName: document.SchemaName, SchemaVersion: document.SchemaVersion,
+	}, nil
+}
+
+type rejectionDocument struct {
+	Rejected *[]struct {
+		Stage         string `json:"stage"`
+		StepID        string `json:"step_id"`
+		LaneID        string `json:"lane_id"`
+		ModuleKey     string `json:"module_key"`
+		ChunkID       string `json:"chunk_id"`
+		ValidatorName string `json:"validator_name"`
+		ReasonCode    string `json:"reason_code"`
+		Message       string `json:"message"`
+	} `json:"rejected"`
+}
+
+func loadRejections(path string) ([]RejectionSummary, error) {
+	var document rejectionDocument
+	if err := decodeBoundedJSON(path, maxSummaryBytes, &document); err != nil {
+		return nil, fmt.Errorf("decode notarius rejections: %w", err)
+	}
+	if document.Rejected == nil {
+		return nil, fmt.Errorf("notarius rejection document is missing rejected array")
+	}
+	summaries := make([]RejectionSummary, 0, len(*document.Rejected))
+	for _, item := range *document.Rejected {
+		if strings.TrimSpace(item.Stage) == "" || strings.TrimSpace(item.Message) == "" {
+			return nil, fmt.Errorf("notarius rejection entries require stage and message")
+		}
+		summaries = append(summaries, RejectionSummary{
+			Stage: item.Stage, StepID: item.StepID, LaneID: item.LaneID,
+			ModuleKey: item.ModuleKey, ChunkID: item.ChunkID,
+			ValidatorName: item.ValidatorName, ReasonCode: item.ReasonCode,
+		})
+	}
+	return summaries, nil
+}
+
+type warningDocument struct {
+	Warnings *[]struct {
+		Scope      string `json:"scope"`
+		ReasonCode string `json:"reason_code"`
+		Message    string `json:"message"`
+	} `json:"warnings"`
+}
+
+func loadWarnings(path string) ([]WarningSummary, error) {
+	var document warningDocument
+	if err := decodeBoundedJSON(path, maxSummaryBytes, &document); err != nil {
+		return nil, fmt.Errorf("decode notarius warnings: %w", err)
+	}
+	if document.Warnings == nil {
+		return nil, fmt.Errorf("notarius warning document is missing warnings array")
+	}
+	summaries := make([]WarningSummary, 0, len(*document.Warnings))
+	for _, item := range *document.Warnings {
+		if strings.TrimSpace(item.ReasonCode) == "" || strings.TrimSpace(item.Message) == "" {
+			return nil, fmt.Errorf("notarius warning entries require reason_code and message")
+		}
+		summaries = append(summaries, WarningSummary{Scope: item.Scope, ReasonCode: item.ReasonCode})
+	}
+	return summaries, nil
+}
+
+func decodeBoundedJSON(path string, limit int64, destination any) error {
+	inspected, err := os.Lstat(path)
+	if err != nil {
+		return err
+	}
+	if inspected.Mode()&os.ModeSymlink != 0 || !inspected.Mode().IsRegular() {
+		return fmt.Errorf("path %q must be a regular file without symlinks", path)
+	}
+	file, err := os.Open(path)
+	if err != nil {
+		return err
+	}
+	defer func() { _ = file.Close() }()
+	opened, err := file.Stat()
+	if err != nil {
+		return err
+	}
+	if !opened.Mode().IsRegular() || !os.SameFile(inspected, opened) {
+		return fmt.Errorf("file %q changed before it could be read", path)
+	}
+	reader := io.LimitReader(file, limit+1)
+	data, err := io.ReadAll(reader)
+	if err != nil {
+		return err
+	}
+	if int64(len(data)) > limit {
+		return fmt.Errorf("file %q exceeds %d-byte limit", path, limit)
+	}
+	if err := json.Unmarshal(data, destination); err != nil {
+		return err
+	}
+	return nil
+}
+
+func validateBundleRoot(outputRoot, bundleRoot string) (string, error) {
+	root := filepath.Clean(outputRoot)
+	bundle := filepath.Clean(bundleRoot)
+	relative, err := filepath.Rel(root, bundle)
+	if err != nil {
+		return "", fmt.Errorf("compare notarius output paths: %w", err)
+	}
+	if relative == "." || relative == ".." || strings.HasPrefix(relative, ".."+string(filepath.Separator)) {
+		return "", fmt.Errorf("notarius output directory %q is not beneath output root %q", bundleRoot, outputRoot)
+	}
+	if err := requireDirectoryTree(root, relative); err != nil {
+		return "", fmt.Errorf("validate notarius output directory: %w", err)
+	}
+	return bundle, nil
+}
+
+func resolveRegularFile(root, logicalPath string) (string, error) {
+	resolved, err := pathsafe.JoinSlashRelativeUnderRoot(root, logicalPath)
+	if err != nil {
+		return "", err
+	}
+	relative, err := filepath.Rel(root, resolved)
+	if err != nil {
+		return "", err
+	}
+	if err := requireRegularFileTree(root, relative); err != nil {
+		return "", err
+	}
+	return resolved, nil
+}
+
+func requireDirectoryTree(root, relative string) error {
+	if err := requireDirectory(root); err != nil {
+		return err
+	}
+	current := root
+	for _, component := range strings.Split(relative, string(filepath.Separator)) {
+		current = filepath.Join(current, component)
+		if err := requireDirectory(current); err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+func requireRegularFileTree(root, relative string) error {
+	components := strings.Split(relative, string(filepath.Separator))
+	if len(components) == 0 {
+		return fmt.Errorf("regular file path is required")
+	}
+	if err := requireDirectory(root); err != nil {
+		return err
+	}
+	current := root
+	for _, component := range components[:len(components)-1] {
+		current = filepath.Join(current, component)
+		if err := requireDirectory(current); err != nil {
+			return err
+		}
+	}
+	return requireRegularFile(filepath.Join(current, components[len(components)-1]))
+}
+
+func requireDirectory(path string) error {
+	info, err := os.Lstat(path)
+	if err != nil {
+		return err
+	}
+	if info.Mode()&os.ModeSymlink != 0 || !info.IsDir() {
+		return fmt.Errorf("path %q must be a directory without symlinks", path)
+	}
+	return nil
+}
+
+func requireRegularFile(path string) error {
+	info, err := os.Lstat(path)
+	if err != nil {
+		return err
+	}
+	if info.Mode()&os.ModeSymlink != 0 || !info.Mode().IsRegular() {
+		return fmt.Errorf("path %q must be a regular file without symlinks", path)
+	}
+	return nil
+}
+
+func validateLogDestination(path string) error {
+	if err := requireDirectory(filepath.Dir(path)); err != nil {
+		return err
+	}
+	info, err := os.Lstat(path)
+	if errors.Is(err, os.ErrNotExist) {
+		return nil
+	}
+	if err != nil {
+		return err
+	}
+	if info.Mode()&os.ModeSymlink != 0 || !info.Mode().IsRegular() {
+		return fmt.Errorf("path %q must be absent or a regular file without symlinks", path)
+	}
+	return nil
+}

internal/adapters/notarius/subprocess_test.go

@@ -0,0 +1,572 @@
+package notarius
+
+import (
+	"context"
+	"encoding/json"
+	"errors"
+	"os"
+	"path/filepath"
+	"reflect"
+	"strings"
+	"testing"
+	"time"
+
+	sharedsubprocess "gitea.maximumdirect.net/eric/narratio/internal/adapters/subprocess"
+)
+
+func TestSubprocessRunnerBuildsExactInvocationAndDiscoversBundle(t *testing.T) {
+	req := validRunRequest(t)
+	var captured sharedsubprocess.RunRequest
+	runner := &SubprocessRunner{run: func(_ context.Context, processReq sharedsubprocess.RunRequest) (sharedsubprocess.RunResult, error) {
+		captured = processReq
+		writeValidBundleAndReceipt(t, req, true)
+		return sharedsubprocess.RunResult{ExitCode: 0, Duration: 2 * time.Second}, nil
+	}}
+
+	result, err := runner.Run(context.Background(), req)
+	if err != nil {
+		t.Fatalf("Run() error = %v", err)
+	}
+	wantArgs := []string{
+		"run", "dnd-session", "--config", req.ConfigPath, "--input", req.InputPath,
+		"--output-dir", req.OutputRoot, "--json",
+	}
+	if !reflect.DeepEqual(captured.Args, wantArgs) {
+		t.Fatalf("subprocess args = %#v, want %#v", captured.Args, wantArgs)
+	}
+	if captured.Executable != req.Binary || captured.WorkingDir != req.WorkingDirectory || captured.Timeout != req.Timeout {
+		t.Fatalf("subprocess request = %#v", captured)
+	}
+	if captured.StdoutLogPath != req.ReceiptPath || captured.StderrLogPath != req.LogPath {
+		t.Fatalf("stream paths = stdout %q stderr %q", captured.StdoutLogPath, captured.StderrLogPath)
+	}
+	if captured.EnvOverrides != nil {
+		t.Fatalf("environment overrides = %#v, want inherited environment only", captured.EnvOverrides)
+	}
+	for _, arg := range captured.Args {
+		if arg == "--session-id" {
+			t.Fatal("subprocess args unexpectedly contain --session-id")
+		}
+	}
+
+	if result.Receipt.SchemaVersion != ReceiptSchemaVersion || result.Receipt.RunID != "notarius-run-1" {
+		t.Fatalf("receipt = %#v", result.Receipt)
+	}
+	if len(result.Index.Lanes) != 1 || result.Index.Lanes[0].LaneID != "npc-registry" {
+		t.Fatalf("lanes = %#v", result.Index.Lanes)
+	}
+	if result.Index.ChunkMap == nil || result.Index.ChunkMap.ArtifactKind != "chunk_map" {
+		t.Fatalf("chunk map = %#v", result.Index.ChunkMap)
+	}
+	if result.Index.EvidenceContext == nil || result.Index.EvidenceContext.ArtifactKind != "evidence_context" {
+		t.Fatalf("evidence context = %#v", result.Index.EvidenceContext)
+	}
+	if len(result.Rejections) != 1 || result.Rejections[0].LaneID != "spells" || result.Rejections[0].ReasonCode != "invalid_spell" {
+		t.Fatalf("rejections = %#v", result.Rejections)
+	}
+	if len(result.Warnings) != 1 || result.Warnings[0].Scope != "lane:npc-registry" || result.Warnings[0].ReasonCode != "normalized_name" {
+		t.Fatalf("warnings = %#v", result.Warnings)
+	}
+}
+
+func TestSubprocessRunnerInheritsEnvironmentAndSeparatesStreams(t *testing.T) {
+	req := validRunRequest(t)
+	writeValidBundleAndReceipt(t, req, false)
+	receiptFixture := req.ReceiptPath + ".fixture"
+	data, err := os.ReadFile(req.ReceiptPath)
+	if err != nil {
+		t.Fatalf("ReadFile(receipt) error = %v", err)
+	}
+	if err := os.WriteFile(receiptFixture, data, 0o644); err != nil {
+		t.Fatalf("WriteFile(receipt fixture) error = %v", err)
+	}
+	if err := os.Remove(req.ReceiptPath); err != nil {
+		t.Fatalf("Remove(receipt) error = %v", err)
+	}
+
+	captureDir := filepath.Join(filepath.Dir(req.ReceiptPath), "capture")
+	if err := os.Mkdir(captureDir, 0o755); err != nil {
+		t.Fatalf("Mkdir(capture) error = %v", err)
+	}
+	script := writeShellScript(t, `#!/bin/sh
+pwd > "$NOTARIUS_CAPTURE_DIR/working-directory"
+printf '%s' "$NOTARIUS_INHERITED_VALUE" > "$NOTARIUS_CAPTURE_DIR/environment"
+printf 'diagnostic stream\n' >&2
+cat "$NOTARIUS_RECEIPT_FIXTURE"
+`)
+	req.Binary = script
+	t.Setenv("NOTARIUS_CAPTURE_DIR", captureDir)
+	t.Setenv("NOTARIUS_INHERITED_VALUE", "inherited-value")
+	t.Setenv("NOTARIUS_RECEIPT_FIXTURE", receiptFixture)
+
+	if _, err := NewSubprocessRunner().Run(context.Background(), req); err != nil {
+		t.Fatalf("Run() error = %v", err)
+	}
+	assertTextFile(t, filepath.Join(captureDir, "working-directory"), req.WorkingDirectory+"\n")
+	assertTextFile(t, filepath.Join(captureDir, "environment"), "inherited-value")
+	assertTextFile(t, req.LogPath, "diagnostic stream\n")
+	receiptBytes, err := os.ReadFile(req.ReceiptPath)
+	if err != nil {
+		t.Fatalf("ReadFile(receipt) error = %v", err)
+	}
+	if strings.Contains(string(receiptBytes), "diagnostic stream") {
+		t.Fatal("receipt contains stderr output")
+	}
+}
+
+func TestSubprocessRunnerReturnsProcessFailuresWithoutParsingStdout(t *testing.T) {
+	tests := []struct {
+		name       string
+		scriptBody string
+		timeout    time.Duration
+		cancel     bool
+		want       string
+	}{
+		{name: "nonzero", scriptBody: "printf '{malformed receipt'; printf 'failed\\n' >&2; exit 7\n", timeout: time.Second, want: "exit code 7"},
+		{name: "timeout", scriptBody: "sleep 5\n", timeout: 20 * time.Millisecond, want: "timed out"},
+		{name: "cancellation", scriptBody: "sleep 5\n", timeout: time.Second, cancel: true, want: "canceled"},
+	}
+	for _, test := range tests {
+		t.Run(test.name, func(t *testing.T) {
+			req := validRunRequest(t)
+			req.Binary = writeShellScript(t, "#!/bin/sh\n"+test.scriptBody)
+			req.Timeout = test.timeout
+			ctx := context.Background()
+			if test.cancel {
+				cancelCtx, cancel := context.WithCancel(ctx)
+				ctx = cancelCtx
+				time.AfterFunc(20*time.Millisecond, cancel)
+			}
+			_, err := NewSubprocessRunner().Run(ctx, req)
+			if err == nil || !strings.Contains(err.Error(), test.want) {
+				t.Fatalf("Run() error = %v, want fragment %q", err, test.want)
+			}
+			if strings.Contains(err.Error(), "decode notarius receipt") {
+				t.Fatalf("Run() parsed stdout after process failure: %v", err)
+			}
+		})
+	}
+}
+
+func TestSubprocessRunnerReturnsSharedSubprocessErrorWithoutReadingReceipt(t *testing.T) {
+	req := validRunRequest(t)
+	if err := os.WriteFile(req.ReceiptPath, []byte("not json"), 0o644); err != nil {
+		t.Fatalf("WriteFile(receipt) error = %v", err)
+	}
+	wantErr := errors.New("process failed")
+	runner := &SubprocessRunner{run: func(context.Context, sharedsubprocess.RunRequest) (sharedsubprocess.RunResult, error) {
+		return sharedsubprocess.RunResult{ExitCode: 9}, wantErr
+	}}
+	_, err := runner.Run(context.Background(), req)
+	if !errors.Is(err, wantErr) {
+		t.Fatalf("Run() error = %v, want wrapped process error", err)
+	}
+	if strings.Contains(err.Error(), "decode") {
+		t.Fatalf("Run() parsed receipt after failure: %v", err)
+	}
+}
+
+func TestLoadReceiptValidation(t *testing.T) {
+	root := t.TempDir()
+	valid := map[string]any{
+		"schema_version": ReceiptSchemaVersion, "run_id": "run-1", "pipeline_id": "pipeline-1",
+		"output_directory": filepath.Join(root, "outputs", "run-1"), "index_file": "index.json",
+		"normalized_output_count": 1, "rejected_output_count": 0, "warning_count": 0,
+		"validation_status": "approved", "future_field": true,
+	}
+	tests := []struct {
+		name      string
+		mutate    func(map[string]any)
+		raw       []byte
+		wantOK    bool
+		wantError string
+	}{
+		{name: "unknown fields tolerated", wantOK: true},
+		{name: "malformed", raw: []byte("{")},
+		{name: "unsupported version", mutate: func(v map[string]any) { v["schema_version"] = "notarius.run-result.v2" }},
+		{name: "missing field", mutate: func(v map[string]any) { delete(v, "run_id") }},
+		{name: "pipeline mismatch", mutate: func(v map[string]any) { v["pipeline_id"] = "other" }},
+		{name: "relative output", mutate: func(v map[string]any) { v["output_directory"] = "run-1" }},
+		{name: "negative count", mutate: func(v map[string]any) { v["warning_count"] = -1 }},
+		{
+			name: "nested index", mutate: func(v map[string]any) { v["index_file"] = "nested/index.json" },
+			wantError: `index_file "nested/index.json"`,
+		},
+		{
+			name: "cleanable index", mutate: func(v map[string]any) { v["index_file"] = "./index.json" },
+			wantError: `index_file "./index.json"`,
+		},
+	}
+	for _, test := range tests {
+		t.Run(test.name, func(t *testing.T) {
+			path := filepath.Join(root, strings.ReplaceAll(test.name, " ", "-")+".json")
+			values := cloneMap(valid)
+			if test.mutate != nil {
+				test.mutate(values)
+			}
+			if test.raw != nil {
+				if err := os.WriteFile(path, test.raw, 0o644); err != nil {
+					t.Fatalf("WriteFile() error = %v", err)
+				}
+			} else {
+				writeJSONFile(t, path, values)
+			}
+			_, err := loadReceipt(path, "pipeline-1")
+			if test.wantOK && err != nil {
+				t.Fatalf("loadReceipt() error = %v", err)
+			}
+			if !test.wantOK && err == nil {
+				t.Fatal("loadReceipt() error = nil, want validation failure")
+			}
+			if test.wantError != "" && !strings.Contains(err.Error(), test.wantError) {
+				t.Fatalf("loadReceipt() error = %v, want fragment %q", err, test.wantError)
+			}
+		})
+	}
+
+	oversized := filepath.Join(root, "oversized.json")
+	if err := os.WriteFile(oversized, []byte(strings.Repeat("x", maxReceiptBytes+1)), 0o644); err != nil {
+		t.Fatalf("WriteFile(oversized) error = %v", err)
+	}
+	if _, err := loadReceipt(oversized, "pipeline-1"); err == nil || !strings.Contains(err.Error(), "exceeds") {
+		t.Fatalf("loadReceipt(oversized) error = %v", err)
+	}
+}
+
+func TestValidateBundleRootRejectsEscapesAndSymlinks(t *testing.T) {
+	root := t.TempDir()
+	outputRoot := filepath.Join(root, "output")
+	if err := os.Mkdir(outputRoot, 0o755); err != nil {
+		t.Fatalf("Mkdir(output root) error = %v", err)
+	}
+	validBundle := filepath.Join(outputRoot, "run-1")
+	if err := os.Mkdir(validBundle, 0o755); err != nil {
+		t.Fatalf("Mkdir(bundle) error = %v", err)
+	}
+	if _, err := validateBundleRoot(outputRoot, validBundle); err != nil {
+		t.Fatalf("validateBundleRoot(valid) error = %v", err)
+	}
+
+	outside := filepath.Join(root, "output-other")
+	if err := os.Mkdir(outside, 0o755); err != nil {
+		t.Fatalf("Mkdir(outside) error = %v", err)
+	}
+	for name, candidate := range map[string]string{"equal root": outputRoot, "escape": root, "prefix confusion": outside} {
+		t.Run(name, func(t *testing.T) {
+			if _, err := validateBundleRoot(outputRoot, candidate); err == nil {
+				t.Fatalf("validateBundleRoot(%q) error = nil", candidate)
+			}
+		})
+	}
+	symlink := filepath.Join(outputRoot, "linked")
+	if err := os.Symlink(outside, symlink); err != nil {
+		t.Skipf("Symlink() unavailable: %v", err)
+	}
+	if _, err := validateBundleRoot(outputRoot, symlink); err == nil {
+		t.Fatal("validateBundleRoot(symlink) error = nil")
+	}
+}
+
+func TestLoadIndexRejectsMalformedUnsafeAndUnsupportedDocuments(t *testing.T) {
+	tests := []struct {
+		name       string
+		indexValue any
+		prepare    func(*testing.T, string)
+		wantError  string
+	}{
+		{name: "malformed", indexValue: json.RawMessage(`{"manifest_file":`)},
+		{name: "unsupported output shape", indexValue: map[string]any{"manifest_file": "manifest.json", "output_files": map[string]any{}, "rejected_file": "rejected.json", "warnings_file": "warnings.json"}},
+		{name: "missing management path", indexValue: map[string]any{"output_files": []any{}, "rejected_file": "rejected.json", "warnings_file": "warnings.json"}},
+		{name: "renamed manifest", indexValue: func() any {
+			value := validIndexValue([]any{})
+			value["manifest_file"] = "metadata.json"
+			return value
+		}(), wantError: `manifest_file "metadata.json"`},
+		{name: "cleanable manifest", indexValue: func() any {
+			value := validIndexValue([]any{})
+			value["manifest_file"] = "./manifest.json"
+			return value
+		}(), wantError: `manifest_file "./manifest.json"`},
+		{name: "renamed rejections", indexValue: func() any {
+			value := validIndexValue([]any{})
+			value["rejected_file"] = "rejections.json"
+			return value
+		}(), wantError: `rejected_file "rejections.json"`},
+		{name: "renamed warnings", indexValue: func() any {
+			value := validIndexValue([]any{})
+			value["warnings_file"] = "diagnostics/warnings.json"
+			return value
+		}(), wantError: `warnings_file "diagnostics/warnings.json"`},
+		{name: "duplicate lane", indexValue: validIndexValue([]any{
+			map[string]any{"lane_id": "npc", "file": "lanes/npc.json"},
+			map[string]any{"lane_id": "npc", "file": "lanes/npc.json"},
+		})},
+		{name: "absolute logical path", indexValue: validIndexValue([]any{map[string]any{"lane_id": "npc", "file": "/tmp/npc.json"}})},
+		{name: "lexical traversal", indexValue: validIndexValue([]any{map[string]any{"lane_id": "npc", "file": "../outside.json"}})},
+		{name: "root prefix confusion", indexValue: validIndexValue([]any{map[string]any{"lane_id": "npc", "file": "../bundle-other/npc.json"}})},
+		{name: "file symlink", indexValue: validIndexValue([]any{map[string]any{"lane_id": "npc", "file": "lanes/npc.json"}}), prepare: func(t *testing.T, bundle string) {
+			if err := os.Symlink(filepath.Join(bundle, "manifest.json"), filepath.Join(bundle, "lanes", "npc.json")); err != nil {
+				t.Skipf("Symlink() unavailable: %v", err)
+			}
+		}},
+		{name: "directory symlink", indexValue: validIndexValue([]any{map[string]any{"lane_id": "npc", "file": "linked/npc.json"}}), prepare: func(t *testing.T, bundle string) {
+			if err := os.Symlink(filepath.Join(bundle, "lanes"), filepath.Join(bundle, "linked")); err != nil {
+				t.Skipf("Symlink() unavailable: %v", err)
+			}
+		}},
+		{name: "missing management file", indexValue: validIndexValue([]any{}), prepare: func(t *testing.T, bundle string) {
+			if err := os.Remove(filepath.Join(bundle, "manifest.json")); err != nil {
+				t.Fatalf("Remove(manifest) error = %v", err)
+			}
+		}},
+		{name: "incomplete pipeline descriptor", indexValue: func() any {
+			value := validIndexValue([]any{})
+			value["chunk_map"] = map[string]any{"artifact_kind": "chunk_map", "file": "chunk-map.json"}
+			return value
+		}()},
+		{name: "pipeline descriptor escape", indexValue: func() any {
+			value := validIndexValue([]any{})
+			value["evidence_context"] = map[string]any{
+				"artifact_kind": "evidence_context", "file": "../evidence.json", "media_type": "application/json",
+				"schema_id": "evidence", "schema_name": "Evidence", "schema_version": "v1",
+			}
+			return value
+		}()},
+	}
+	for _, test := range tests {
+		t.Run(test.name, func(t *testing.T) {
+			bundle := createBundleSkeleton(t)
+			indexPath := filepath.Join(bundle, "index.json")
+			if raw, ok := test.indexValue.(json.RawMessage); ok {
+				if err := os.WriteFile(indexPath, raw, 0o644); err != nil {
+					t.Fatalf("WriteFile(index) error = %v", err)
+				}
+			} else {
+				writeJSONFile(t, indexPath, test.indexValue)
+			}
+			if test.prepare != nil {
+				test.prepare(t, bundle)
+			}
+			if _, err := loadIndex(bundle, indexPath); err == nil {
+				t.Fatal("loadIndex() error = nil, want failure")
+			} else if test.wantError != "" && !strings.Contains(err.Error(), test.wantError) {
+				t.Fatalf("loadIndex() error = %v, want fragment %q", err, test.wantError)
+			}
+		})
+	}
+
+	bundle := createBundleSkeleton(t)
+	oversizedIndex := filepath.Join(bundle, "index.json")
+	if err := os.WriteFile(oversizedIndex, []byte(strings.Repeat("x", maxIndexBytes+1)), 0o644); err != nil {
+		t.Fatalf("WriteFile(oversized index) error = %v", err)
+	}
+	if _, err := loadIndex(bundle, oversizedIndex); err == nil || !strings.Contains(err.Error(), "exceeds") {
+		t.Fatalf("loadIndex(oversized) error = %v", err)
+	}
+}
+
+func TestLoadDiagnosticSummariesValidateBoundsAndTolerateUnknownFields(t *testing.T) {
+	root := t.TempDir()
+	rejectedPath := filepath.Join(root, "rejected.json")
+	warningsPath := filepath.Join(root, "warnings.json")
+	writeJSONFile(t, rejectedPath, map[string]any{"rejected": []any{map[string]any{
+		"stage": "validate", "lane_id": "spells", "reason_code": "invalid", "message": "do not retain this", "future": true,
+	}}, "future": true})
+	writeJSONFile(t, warningsPath, map[string]any{"warnings": []any{map[string]any{
+		"scope": "lane:spells", "reason_code": "bounded", "message": "do not retain this", "future": true,
+	}}, "future": true})
+	rejections, err := loadRejections(rejectedPath)
+	if err != nil || len(rejections) != 1 || rejections[0].ReasonCode != "invalid" {
+		t.Fatalf("loadRejections() = %#v, %v", rejections, err)
+	}
+	warnings, err := loadWarnings(warningsPath)
+	if err != nil || len(warnings) != 1 || warnings[0].Scope != "lane:spells" {
+		t.Fatalf("loadWarnings() = %#v, %v", warnings, err)
+	}
+
+	for name, path := range map[string]string{"rejections": rejectedPath, "warnings": warningsPath} {
+		t.Run("malformed "+name, func(t *testing.T) {
+			if err := os.WriteFile(path, []byte("{"), 0o644); err != nil {
+				t.Fatalf("WriteFile() error = %v", err)
+			}
+			var err error
+			if name == "rejections" {
+				_, err = loadRejections(path)
+			} else {
+				_, err = loadWarnings(path)
+			}
+			if err == nil {
+				t.Fatal("summary decoder error = nil")
+			}
+		})
+	}
+	oversized := filepath.Join(root, "oversized.json")
+	if err := os.WriteFile(oversized, []byte(strings.Repeat("x", maxSummaryBytes+1)), 0o644); err != nil {
+		t.Fatalf("WriteFile(oversized) error = %v", err)
+	}
+	if _, err := loadWarnings(oversized); err == nil || !strings.Contains(err.Error(), "exceeds") {
+		t.Fatalf("loadWarnings(oversized) error = %v", err)
+	}
+	if _, err := loadRejections(oversized); err == nil || !strings.Contains(err.Error(), "exceeds") {
+		t.Fatalf("loadRejections(oversized) error = %v", err)
+	}
+}
+
+func TestFakeRunnerCapturesRequestsAndHonorsContextAndError(t *testing.T) {
+	req := RunRequest{PipelineID: "pipeline"}
+	want := RunResult{BundleRoot: "/bundle"}
+	fake := &FakeRunner{Result: want}
+	got, err := fake.Run(context.Background(), req)
+	if err != nil || !reflect.DeepEqual(got, want) || !reflect.DeepEqual(fake.Requests, []RunRequest{req}) {
+		t.Fatalf("Run() = %#v, %v; requests = %#v", got, err, fake.Requests)
+	}
+
+	wantErr := errors.New("configured failure")
+	fake.Err = wantErr
+	if _, err := fake.Run(context.Background(), req); !errors.Is(err, wantErr) {
+		t.Fatalf("Run(configured error) = %v", err)
+	}
+	canceled, cancel := context.WithCancel(context.Background())
+	cancel()
+	before := len(fake.Requests)
+	if _, err := fake.Run(canceled, req); !errors.Is(err, context.Canceled) || len(fake.Requests) != before {
+		t.Fatalf("Run(canceled) error = %v; requests = %d", err, len(fake.Requests))
+	}
+}
+
+func validRunRequest(t *testing.T) RunRequest {
+	t.Helper()
+	root := t.TempDir()
+	configPath := filepath.Join(root, "notarius.yml")
+	inputPath := filepath.Join(root, "input.json")
+	outputRoot := filepath.Join(root, "outputs")
+	workingDirectory := filepath.Join(root, "work")
+	diagnostics := filepath.Join(root, "diagnostics")
+	for _, directory := range []string{outputRoot, workingDirectory, diagnostics} {
+		if err := os.Mkdir(directory, 0o755); err != nil {
+			t.Fatalf("Mkdir(%q) error = %v", directory, err)
+		}
+	}
+	if err := os.WriteFile(configPath, []byte("pipelines: {}\n"), 0o644); err != nil {
+		t.Fatalf("WriteFile(config) error = %v", err)
+	}
+	if err := os.WriteFile(inputPath, []byte("{}\n"), 0o644); err != nil {
+		t.Fatalf("WriteFile(input) error = %v", err)
+	}
+	return RunRequest{
+		Binary: "notarius", ConfigPath: configPath, PipelineID: "dnd-session", InputPath: inputPath,
+		OutputRoot: outputRoot, WorkingDirectory: workingDirectory,
+		ReceiptPath: filepath.Join(diagnostics, "receipt.json"), LogPath: filepath.Join(diagnostics, "stderr.log"),
+		Timeout: time.Second,
+	}
+}
+
+func writeValidBundleAndReceipt(t *testing.T, req RunRequest, includeUnknown bool) {
+	t.Helper()
+	bundle := filepath.Join(req.OutputRoot, "notarius-run-1")
+	if err := os.MkdirAll(filepath.Join(bundle, "lanes"), 0o755); err != nil {
+		t.Fatalf("MkdirAll(bundle) error = %v", err)
+	}
+	for path, data := range map[string]string{
+		"manifest.json":         `{}`,
+		"lanes/npc.json":        `{}`,
+		"chunk-map.json":        `{}`,
+		"evidence-context.json": `{}`,
+	} {
+		if err := os.WriteFile(filepath.Join(bundle, filepath.FromSlash(path)), []byte(data), 0o644); err != nil {
+			t.Fatalf("WriteFile(%q) error = %v", path, err)
+		}
+	}
+	rejection := map[string]any{"stage": "validate", "lane_id": "spells", "reason_code": "invalid_spell", "message": strings.Repeat("external detail", 20)}
+	warning := map[string]any{"scope": "lane:npc-registry", "reason_code": "normalized_name", "message": strings.Repeat("external warning", 20)}
+	if includeUnknown {
+		rejection["future"] = true
+		warning["future"] = true
+	}
+	writeJSONFile(t, filepath.Join(bundle, "rejected.json"), map[string]any{"rejected": []any{rejection}, "future": true})
+	writeJSONFile(t, filepath.Join(bundle, "warnings.json"), map[string]any{"warnings": []any{warning}, "future": true})
+	index := validIndexValue([]any{map[string]any{
+		"lane_id": "npc-registry", "file": "lanes/npc.json", "media_type": "application/json",
+		"module_key": "dnd/npc-registry", "schema_id": "notarius.dnd.npc_registry",
+		"schema_name": "NPCRegistry", "schema_version": "v1", "future": true,
+	}})
+	index["chunk_map"] = map[string]any{
+		"artifact_kind": "chunk_map", "file": "chunk-map.json", "media_type": "application/json",
+		"schema_id": "notarius.chunk_map", "schema_name": "ChunkMap", "schema_version": "v1", "future": true,
+	}
+	index["evidence_context"] = map[string]any{
+		"artifact_kind": "evidence_context", "file": "evidence-context.json", "media_type": "application/json",
+		"schema_id": "notarius.evidence_context", "schema_name": "EvidenceContext", "schema_version": "v1", "future": true,
+	}
+	index["future"] = true
+	writeJSONFile(t, filepath.Join(bundle, "index.json"), index)
+	receipt := map[string]any{
+		"schema_version": ReceiptSchemaVersion, "run_id": "notarius-run-1", "pipeline_id": req.PipelineID,
+		"output_directory": bundle, "index_file": "index.json", "normalized_output_count": 1,
+		"rejected_output_count": 1, "warning_count": 1, "validation_status": "rejected",
+	}
+	if includeUnknown {
+		receipt["future"] = true
+	}
+	writeJSONFile(t, req.ReceiptPath, receipt)
+}
+
+func createBundleSkeleton(t *testing.T) string {
+	t.Helper()
+	bundle := filepath.Join(t.TempDir(), "bundle")
+	if err := os.MkdirAll(filepath.Join(bundle, "lanes"), 0o755); err != nil {
+		t.Fatalf("MkdirAll(bundle) error = %v", err)
+	}
+	for _, name := range []string{"manifest.json", "rejected.json", "warnings.json", "lanes/npc.json", "chunk-map.json"} {
+		if err := os.WriteFile(filepath.Join(bundle, filepath.FromSlash(name)), []byte("{}"), 0o644); err != nil {
+			t.Fatalf("WriteFile(%q) error = %v", name, err)
+		}
+	}
+	return bundle
+}
+
+func validIndexValue(lanes []any) map[string]any {
+	return map[string]any{
+		"manifest_file": "manifest.json", "output_files": lanes,
+		"rejected_file": "rejected.json", "warnings_file": "warnings.json",
+	}
+}
+
+func writeJSONFile(t *testing.T, path string, value any) {
+	t.Helper()
+	data, err := json.Marshal(value)
+	if err != nil {
+		t.Fatalf("json.Marshal() error = %v", err)
+	}
+	if err := os.WriteFile(path, data, 0o644); err != nil {
+		t.Fatalf("WriteFile(%q) error = %v", path, err)
+	}
+}
+
+func writeShellScript(t *testing.T, body string) string {
+	t.Helper()
+	path := filepath.Join(t.TempDir(), "notarius-helper")
+	if err := os.WriteFile(path, []byte(body), 0o755); err != nil {
+		t.Fatalf("WriteFile(script) error = %v", err)
+	}
+	return path
+}
+
+func assertTextFile(t *testing.T, path, want string) {
+	t.Helper()
+	data, err := os.ReadFile(path)
+	if err != nil {
+		t.Fatalf("ReadFile(%q) error = %v", path, err)
+	}
+	if string(data) != want {
+		t.Fatalf("ReadFile(%q) = %q, want %q", path, string(data), want)
+	}
+}
+
+func cloneMap(source map[string]any) map[string]any {
+	result := make(map[string]any, len(source))
+	for key, value := range source {
+		result[key] = value
+	}
+	return result
+}

internal/app/analyze_artifacts_commands_test.go

@@ -21,7 +21,7 @@ func TestExecuteRunStageArtifactsUnsupportedStageFails(t *testing.T) {
 	var stdout bytes.Buffer
 	var stderr bytes.Buffer
 	code := Execute(
-		[]string{"run-stage", "polish", "2026-05-03", "--config", pipelinePath, "--campaign-file", campaignPath, "--session", sessionPath, "--artifacts", "session_recap"},
+		[]string{"run-stage", "extract", "2026-05-03", "--config", pipelinePath, "--campaign-file", campaignPath, "--session", sessionPath, "--artifacts", "session_recap"},
 		&stdout,
 		&stderr,
 	)
@@ -130,6 +130,7 @@ func TestRunArtifactsWithSucceededAnalyzeSkipsUnlessForced(t *testing.T) {
 	for _, stageName := range []string{"prepare", "transcribe", "merge", "polish", "normalize", "trim", "render", "analyze", "publish", "notify"} {
 		seed.MarkStageSucceeded(stageName, time.Date(2026, 5, 3, 10, 1, 0, 0, time.UTC), nil)
 	}
+	seed.MarkStageSkipped("extract", time.Date(2026, 5, 3, 10, 1, 0, 0, time.UTC), "notarius_disabled")
 	if err := store.Save(context.Background(), manifestPath, seed); err != nil {
 		t.Fatalf("save manifest: %v", err)
 	}
@@ -143,7 +144,7 @@ func TestRunArtifactsWithSucceededAnalyzeSkipsUnlessForced(t *testing.T) {
 	if err != nil {
 		t.Fatalf("Run() error = %v", err)
 	}
-	if !strings.Contains(out.String(), "executed=0 skipped=10") {
+	if !strings.Contains(out.String(), "executed=1 skipped=11") {
 		t.Fatalf("output = %q, want all stages skipped", out.String())
 	}
 }

internal/app/commands_test.go

@@ -31,8 +31,8 @@ func TestExecuteValidCommands(t *testing.T) {
 		args    []string
 		wantOut string
 	}{
-		{name: "run", args: []string{"run", "2026-05-03", "--config", pipelinePath, "--campaign-file", campaignPath, "--session", sessionPath}, wantOut: "narratio run: session 2026-05-03; executed=10 skipped=0; manifest="},
-		{name: "session plan", args: []string{"session", "plan", "2026-05-03", "--config", pipelinePath, "--campaign-file", campaignPath, "--session", sessionPath}, wantOut: "prepare: skip\ntranscribe: skip\nmerge: skip\npolish: skip\nnormalize: skip\ntrim: skip\nrender: skip\nanalyze: skip\npublish: skip\nnotify: skip"},
+		{name: "run", args: []string{"run", "2026-05-03", "--config", pipelinePath, "--campaign-file", campaignPath, "--session", sessionPath}, wantOut: "narratio run: session 2026-05-03; executed=11 skipped=1; manifest="},
+		{name: "session plan", args: []string{"session", "plan", "2026-05-03", "--config", pipelinePath, "--campaign-file", campaignPath, "--session", sessionPath}, wantOut: "prepare: skip\ntranscribe: skip\nmerge: skip\npolish: skip\nnormalize: skip\ntrim: skip\nextract: run\nrender: skip\nanalyze: skip\npublish: skip\nnotify: skip"},
 		{name: "session status", args: []string{"session", "status", "2026-05-03", "--config", pipelinePath, "--campaign-file", campaignPath, "--session", sessionPath}, wantOut: "Session: 2026-05-03"},
 		{name: "run-stage", args: []string{"run-stage", "polish", "2026-05-03", "--config", pipelinePath, "--campaign-file", campaignPath, "--session", sessionPath}, wantOut: "narratio run-stage: stage=polish executed=0 skipped=1 force=false; manifest="},
 	}
@@ -335,7 +335,7 @@ func TestExecuteUsesDefaultPipelineConfigPathWhenConfigFlagOmitted(t *testing.T)
 	if code != 0 {
 		t.Fatalf("exit code = %d, want 0; stderr=%q", code, stderr.String())
 	}
-	if !strings.Contains(stdout.String(), "narratio run: session 2026-05-03; executed=10 skipped=0; manifest=") {
+	if !strings.Contains(stdout.String(), "narratio run: session 2026-05-03; executed=11 skipped=1; manifest=") {
 		t.Fatalf("stdout = %q, want successful run output", stdout.String())
 	}
 }

internal/app/extract_lifecycle_test.go

@@ -0,0 +1,416 @@
+package app
+
+import (
+	"context"
+	"encoding/json"
+	"errors"
+	"fmt"
+	"os"
+	"path/filepath"
+	"strings"
+	"testing"
+	"time"
+
+	"gitea.maximumdirect.net/eric/narratio/internal/adapters/notarius"
+	"gitea.maximumdirect.net/eric/narratio/internal/artifactmodel"
+	"gitea.maximumdirect.net/eric/narratio/internal/artifacts"
+	"gitea.maximumdirect.net/eric/narratio/internal/config"
+	"gitea.maximumdirect.net/eric/narratio/internal/manifest"
+	"gitea.maximumdirect.net/eric/narratio/internal/stage"
+)
+
+type materializingNotariusRunner struct {
+	cfg               *config.NotariusConfig
+	requests          []notarius.RunRequest
+	failuresRemaining int
+}
+
+func (r *materializingNotariusRunner) Run(_ context.Context, req notarius.RunRequest) (notarius.RunResult, error) {
+	r.requests = append(r.requests, req)
+	if r.failuresRemaining > 0 {
+		r.failuresRemaining--
+		return notarius.RunResult{}, errors.New("notarius execution failed")
+	}
+	externalRunID := fmt.Sprintf("notarius-run-%d", len(r.requests))
+	bundle := filepath.Join(req.OutputRoot, externalRunID)
+	lanesDir := filepath.Join(bundle, "lanes")
+	if err := os.MkdirAll(lanesDir, 0o755); err != nil {
+		return notarius.RunResult{}, err
+	}
+	for path, content := range map[string]string{
+		filepath.Join(bundle, "index.json"):    `{"manifest_file":"manifest.json"}`,
+		filepath.Join(bundle, "manifest.json"): `{}`,
+		filepath.Join(bundle, "rejected.json"): `{"rejected":[]}`,
+		filepath.Join(bundle, "warnings.json"): `{"warnings":[]}`,
+		filepath.Join(lanesDir, "npcs.json"):   `{"npcs":[]}`,
+	} {
+		if err := os.WriteFile(path, []byte(content), 0o644); err != nil {
+			return notarius.RunResult{}, err
+		}
+	}
+	output := r.cfg.Outputs["npc_registry"]
+	return notarius.RunResult{
+		Receipt: notarius.Receipt{
+			SchemaVersion: notarius.ReceiptSchemaVersion, RunID: externalRunID,
+			PipelineID: req.PipelineID, OutputDirectory: bundle, IndexFile: "index.json",
+			NormalizedOutputCount: 1, ValidationStatus: "valid",
+		},
+		BundleRoot: bundle,
+		Index: notarius.Index{
+			Path: filepath.Join(bundle, "index.json"), RejectedPath: filepath.Join(bundle, "rejected.json"),
+			WarningsPath: filepath.Join(bundle, "warnings.json"),
+			Lanes: []notarius.LaneDescriptor{{
+				LaneID: output.LaneID, File: "lanes/npcs.json", Path: filepath.Join(lanesDir, "npcs.json"),
+				MediaType: output.MediaType, SchemaID: output.SchemaID,
+				SchemaVersion: output.SchemaVersion, ModuleKey: output.ModuleKey,
+			}},
+		},
+	}, nil
+}
+
+func TestExtractLifecycleDisabledThenEnabled(t *testing.T) {
+	cfg, env, runner := extractionLifecycleFixture(t, false)
+	plan, err := BuildSingleStagePlan("extract")
+	if err != nil {
+		t.Fatalf("BuildSingleStagePlan(extract) error = %v", err)
+	}
+
+	first, err := executeStages(context.Background(), cfg, plan, RunOptions{Env: env})
+	if err != nil {
+		t.Fatalf("disabled executeStages() error = %v", err)
+	}
+	if len(first.Executed) != 1 || len(first.Skipped) != 1 || first.Skipped[0] != "extract" || len(runner.requests) != 0 {
+		t.Fatalf("disabled summary = %#v requests=%d", first, len(runner.requests))
+	}
+
+	cfg.Pipeline.Notarius.Enabled = true
+	second, err := executeStages(context.Background(), cfg, plan, RunOptions{Env: env})
+	if err != nil {
+		t.Fatalf("enabled executeStages() error = %v", err)
+	}
+	if len(second.Executed) != 1 || len(second.Skipped) != 0 || len(runner.requests) != 1 {
+		t.Fatalf("enabled summary = %#v requests=%d", second, len(runner.requests))
+	}
+	loaded, err := (&manifest.LocalStore{}).Load(context.Background(), second.ManifestPath)
+	if err != nil {
+		t.Fatalf("Load() error = %v", err)
+	}
+	if loaded.Stages["extract"] == nil || loaded.Stages["extract"].Status != manifest.StatusSucceeded || len(loaded.Stages["extract"].Outputs) != 2 {
+		t.Fatalf("extract record = %#v, want succeeded manifest-ready outputs", loaded.Stages["extract"])
+	}
+}
+
+func TestExtractLifecycleChangedOutcomeRerunsSucceededDownstream(t *testing.T) {
+	cfg, env, runner := extractionLifecycleFixture(t, false)
+	analyzeRuns := 0
+	plan := extractionLifecyclePlan(t, &analyzeRuns)
+
+	if _, err := executeStages(context.Background(), cfg, plan, RunOptions{Env: env}); err != nil {
+		t.Fatalf("disabled executeStages() error = %v", err)
+	}
+	if analyzeRuns != 1 || len(runner.requests) != 0 {
+		t.Fatalf("disabled run analyze=%d Notarius=%d, want 1 and 0", analyzeRuns, len(runner.requests))
+	}
+
+	cfg.Pipeline.Notarius.Enabled = true
+	summary, err := executeStages(context.Background(), cfg, plan, RunOptions{Env: env})
+	if err != nil {
+		t.Fatalf("enabled executeStages() error = %v", err)
+	}
+	if analyzeRuns != 2 || len(runner.requests) != 1 {
+		t.Fatalf("enabled run analyze=%d Notarius=%d, want 2 and 1", analyzeRuns, len(runner.requests))
+	}
+	if len(summary.Executed) != 2 || len(summary.Skipped) != 0 {
+		t.Fatalf("enabled summary = %#v, want extract and analyze executed", summary)
+	}
+}
+
+func TestExtractLifecycleFailureInvalidatesAndOrdinaryRetryRerunsDownstream(t *testing.T) {
+	cfg, env, runner := extractionLifecycleFixture(t, true)
+	runner.failuresRemaining = 1
+	markLifecycleStageSucceeded(t, cfg, "analyze")
+	analyzeRuns := 0
+	plan := extractionLifecyclePlan(t, &analyzeRuns)
+
+	if _, err := executeStages(context.Background(), cfg, plan, RunOptions{Env: env}); err == nil || !strings.Contains(err.Error(), "notarius execution failed") {
+		t.Fatalf("failed executeStages() error = %v", err)
+	}
+	failed := loadLifecycleManifest(t, cfg)
+	if failed.Stages["extract"].Status != manifest.StatusFailed || failed.Stages["analyze"].Status != manifest.StatusStale {
+		t.Fatalf("failed lifecycle extract=%#v analyze=%#v", failed.Stages["extract"], failed.Stages["analyze"])
+	}
+	if failed.Stages["analyze"].Error == nil || failed.Stages["analyze"].Error.Message != staleReasonFailure {
+		t.Fatalf("analyze stale reason = %#v, want %q", failed.Stages["analyze"].Error, staleReasonFailure)
+	}
+
+	summary, err := executeStages(context.Background(), cfg, plan, RunOptions{Env: env})
+	if err != nil {
+		t.Fatalf("retry executeStages() error = %v", err)
+	}
+	if analyzeRuns != 1 || len(runner.requests) != 2 || len(summary.Executed) != 2 {
+		t.Fatalf("retry analyze=%d Notarius=%d summary=%#v", analyzeRuns, len(runner.requests), summary)
+	}
+}
+
+func TestExtractLifecycleForcedSelfSkipInvalidatesDownstream(t *testing.T) {
+	cfg, env, _ := extractionLifecycleFixture(t, false)
+	markLifecycleStageSucceeded(t, cfg, "analyze")
+	plan, _ := BuildSingleStagePlan("extract")
+
+	if _, err := executeStages(context.Background(), cfg, plan, RunOptions{Env: env, Force: true}); err != nil {
+		t.Fatalf("executeStages() error = %v", err)
+	}
+	loaded := loadLifecycleManifest(t, cfg)
+	if loaded.Stages["extract"].Status != manifest.StatusSkipped || loaded.Stages["analyze"].Status != manifest.StatusStale {
+		t.Fatalf("forced self-skip extract=%#v analyze=%#v", loaded.Stages["extract"], loaded.Stages["analyze"])
+	}
+	if loaded.Stages["analyze"].Error == nil || loaded.Stages["analyze"].Error.Message != staleReasonForcedReplacement {
+		t.Fatalf("analyze stale reason = %#v, want %q", loaded.Stages["analyze"].Error, staleReasonForcedReplacement)
+	}
+}
+
+func TestExtractLifecycleForcedFailureInvalidatesDownstream(t *testing.T) {
+	cfg, env, runner := extractionLifecycleFixture(t, true)
+	plan, _ := BuildSingleStagePlan("extract")
+
+	first, err := executeStages(context.Background(), cfg, plan, RunOptions{Env: env})
+	if err != nil {
+		t.Fatalf("initial executeStages() error = %v", err)
+	}
+	succeeded := loadLifecycleManifest(t, cfg).Stages["extract"]
+	if succeeded == nil || succeeded.Status != manifest.StatusSucceeded || len(succeeded.Outputs) == 0 || len(succeeded.Logs) == 0 || len(succeeded.Metadata) == 0 {
+		t.Fatalf("initial extraction result = %#v, want succeeded result details", succeeded)
+	}
+
+	markLifecycleStageSucceeded(t, cfg, "analyze")
+	runner.failuresRemaining = 1
+
+	if _, err := executeStages(context.Background(), cfg, plan, RunOptions{Env: env, Force: true}); err == nil {
+		t.Fatal("executeStages() error = nil, want forced extraction failure")
+	}
+	loaded := loadLifecycleManifest(t, cfg)
+	if loaded.Stages["extract"].Status != manifest.StatusFailed || loaded.Stages["analyze"].Status != manifest.StatusStale {
+		t.Fatalf("forced failure extract=%#v analyze=%#v", loaded.Stages["extract"], loaded.Stages["analyze"])
+	}
+	if loaded.Stages["analyze"].Error == nil || loaded.Stages["analyze"].Error.Message != staleReasonForcedReplacement {
+		t.Fatalf("analyze stale reason = %#v, want %q", loaded.Stages["analyze"].Error, staleReasonForcedReplacement)
+	}
+	failed := loaded.Stages["extract"]
+	if len(failed.Outputs) != 0 || len(failed.Logs) != 0 || len(failed.GeneratedConfigs) != 0 || len(failed.Metadata) != 0 {
+		t.Fatalf("failed replacement inherited extraction result details: %#v", failed)
+	}
+	historical, err := (&manifest.LocalStore{}).LoadRun(context.Background(), first.RunManifestPath)
+	if err != nil {
+		t.Fatalf("LoadRun(initial) error = %v", err)
+	}
+	historicalExtract := historical.Stages["extract"]
+	if historicalExtract == nil || historicalExtract.Status != manifest.StatusSucceeded || len(historicalExtract.Outputs) == 0 || len(historicalExtract.Logs) == 0 || len(historicalExtract.Metadata) == 0 {
+		t.Fatalf("historical extraction result = %#v, want preserved succeeded details", historicalExtract)
+	}
+	if _, err := os.Stat(succeeded.Outputs[0].LocalPath); err != nil {
+		t.Fatalf("durable extraction output was not preserved: %v", err)
+	}
+}
+
+func TestExtractLifecycleRepeatedSelfSkipPreservesSucceededDownstream(t *testing.T) {
+	cfg, env, runner := extractionLifecycleFixture(t, false)
+	analyzeRuns := 0
+	plan := extractionLifecyclePlan(t, &analyzeRuns)
+
+	if _, err := executeStages(context.Background(), cfg, plan, RunOptions{Env: env}); err != nil {
+		t.Fatalf("first executeStages() error = %v", err)
+	}
+	second, err := executeStages(context.Background(), cfg, plan, RunOptions{Env: env})
+	if err != nil {
+		t.Fatalf("second executeStages() error = %v", err)
+	}
+	if analyzeRuns != 1 || len(runner.requests) != 0 {
+		t.Fatalf("repeated disabled run analyze=%d Notarius=%d, want 1 and 0", analyzeRuns, len(runner.requests))
+	}
+	if len(second.Executed) != 1 || len(second.Skipped) != 2 {
+		t.Fatalf("second summary = %#v, want executed self-skip and skipped analyze", second)
+	}
+	loaded := loadLifecycleManifest(t, cfg)
+	if loaded.Stages["analyze"].Status != manifest.StatusSucceeded {
+		t.Fatalf("analyze = %#v, want succeeded", loaded.Stages["analyze"])
+	}
+}
+
+func TestExtractLifecycleSkipsCurrentResumableResult(t *testing.T) {
+	cfg, env, runner := extractionLifecycleFixture(t, true)
+	analyzeRuns := 0
+	plan := extractionLifecyclePlan(t, &analyzeRuns)
+	if _, err := executeStages(context.Background(), cfg, plan, RunOptions{Env: env}); err != nil {
+		t.Fatalf("first executeStages() error = %v", err)
+	}
+	resumed, err := executeStages(context.Background(), cfg, plan, RunOptions{Env: env})
+	if err != nil {
+		t.Fatalf("resume executeStages() error = %v", err)
+	}
+	if len(resumed.Executed) != 0 || len(resumed.Skipped) != 2 || len(runner.requests) != 1 || analyzeRuns != 1 {
+		t.Fatalf("resume summary = %#v requests=%d analyze=%d", resumed, len(runner.requests), analyzeRuns)
+	}
+}
+
+func TestExtractLifecycleResumesAndRerunsObsoleteResults(t *testing.T) {
+	for _, test := range []struct {
+		name   string
+		mutate func(*testing.T, *config.Config, *manifest.Manifest)
+	}{
+		{name: "configuration changed", mutate: func(_ *testing.T, cfg *config.Config, _ *manifest.Manifest) {
+			output := cfg.Pipeline.Notarius.Outputs["npc_registry"]
+			output.SchemaVersion = "v2"
+			cfg.Pipeline.Notarius.Outputs["npc_registry"] = output
+		}},
+		{name: "payload missing", mutate: func(t *testing.T, _ *config.Config, m *manifest.Manifest) {
+			if err := os.Remove(m.Stages["extract"].Outputs[0].LocalPath); err != nil {
+				t.Fatalf("Remove() error = %v", err)
+			}
+		}},
+		{name: "payload tampered", mutate: func(t *testing.T, _ *config.Config, m *manifest.Manifest) {
+			if err := os.WriteFile(m.Stages["extract"].Outputs[0].LocalPath, []byte(`{"npcs":["tampered"]}`), 0o644); err != nil {
+				t.Fatalf("WriteFile() error = %v", err)
+			}
+		}},
+		{name: "record incompatible", mutate: func(_ *testing.T, _ *config.Config, m *manifest.Manifest) {
+			m.Stages["extract"].Outputs[0].Contract.SchemaID = "incompatible"
+		}},
+	} {
+		t.Run(test.name, func(t *testing.T) {
+			cfg, env, runner := extractionLifecycleFixture(t, true)
+			plan, _ := BuildSingleStagePlan("extract")
+			first, err := executeStages(context.Background(), cfg, plan, RunOptions{Env: env})
+			if err != nil {
+				t.Fatalf("first executeStages() error = %v", err)
+			}
+			persisted, err := (&manifest.LocalStore{}).Load(context.Background(), first.ManifestPath)
+			if err != nil {
+				t.Fatalf("Load() error = %v", err)
+			}
+
+			test.mutate(t, cfg, persisted)
+			if err := (&manifest.LocalStore{}).Save(context.Background(), first.ManifestPath, persisted); err != nil {
+				t.Fatalf("Save(mutated) error = %v", err)
+			}
+			rerun, err := executeStages(context.Background(), cfg, plan, RunOptions{Env: env})
+			if err != nil {
+				t.Fatalf("rerun executeStages() error = %v", err)
+			}
+			if len(rerun.Executed) != 1 || len(rerun.Skipped) != 0 || len(runner.requests) != 2 {
+				t.Fatalf("rerun summary = %#v requests=%d", rerun, len(runner.requests))
+			}
+		})
+	}
+}
+
+func TestExtractLifecycleUnsafeResumeErrorPreservesSuccess(t *testing.T) {
+	cfg, env, runner := extractionLifecycleFixture(t, true)
+	analyzeRuns := 0
+	plan := extractionLifecyclePlan(t, &analyzeRuns)
+	first, err := executeStages(context.Background(), cfg, plan, RunOptions{Env: env})
+	if err != nil {
+		t.Fatalf("first executeStages() error = %v", err)
+	}
+	store := &manifest.LocalStore{}
+	persisted, err := store.Load(context.Background(), first.ManifestPath)
+	if err != nil {
+		t.Fatalf("Load() error = %v", err)
+	}
+	persisted.Stages["extract"].Outputs[0].LocalPath = filepath.Join(cfg.Pipeline.Workspace.Root, "outside.json")
+	if err := store.Save(context.Background(), first.ManifestPath, persisted); err != nil {
+		t.Fatalf("Save() error = %v", err)
+	}
+	before, _ := json.Marshal(map[string]*manifest.StageRecord{
+		"extract": persisted.Stages["extract"],
+		"analyze": persisted.Stages["analyze"],
+	})
+
+	if _, err := executeStages(context.Background(), cfg, plan, RunOptions{Env: env}); err == nil || !strings.Contains(err.Error(), "unsafe") {
+		t.Fatalf("executeStages() error = %v, want unsafe resume failure", err)
+	}
+	afterManifest, err := store.Load(context.Background(), first.ManifestPath)
+	if err != nil {
+		t.Fatalf("Load(after) error = %v", err)
+	}
+	after, _ := json.Marshal(map[string]*manifest.StageRecord{
+		"extract": afterManifest.Stages["extract"],
+		"analyze": afterManifest.Stages["analyze"],
+	})
+	if string(before) != string(after) || len(runner.requests) != 1 || analyzeRuns != 1 {
+		t.Fatalf("successful records changed: before=%s after=%s requests=%d analyze=%d", before, after, len(runner.requests), analyzeRuns)
+	}
+}
+
+func extractionLifecyclePlan(t *testing.T, analyzeRuns *int) []stage.Stage {
+	t.Helper()
+	plan, err := BuildSingleStagePlan("extract")
+	if err != nil {
+		t.Fatalf("BuildSingleStagePlan(extract) error = %v", err)
+	}
+	return append(plan, countingStage{name: "analyze", runs: analyzeRuns})
+}
+
+func loadLifecycleManifest(t *testing.T, cfg *config.Config) *manifest.Manifest {
+	t.Helper()
+	loaded, err := (&manifest.LocalStore{}).Load(context.Background(), manifestPathFor(cfg))
+	if err != nil {
+		t.Fatalf("Load() error = %v", err)
+	}
+	return loaded
+}
+
+func markLifecycleStageSucceeded(t *testing.T, cfg *config.Config, name string) {
+	t.Helper()
+	loaded := loadLifecycleManifest(t, cfg)
+	loaded.MarkStageSucceeded(name, time.Now().UTC(), nil)
+	if err := (&manifest.LocalStore{}).Save(context.Background(), manifestPathFor(cfg), loaded); err != nil {
+		t.Fatalf("Save() error = %v", err)
+	}
+}
+
+func extractionLifecycleFixture(t *testing.T, enabled bool) (*config.Config, *stage.Env, *materializingNotariusRunner) {
+	t.Helper()
+	cfg := testConfig(t)
+	root := cfg.Pipeline.Workspace.Root
+	binary := filepath.Join(root, "notarius")
+	configPath := filepath.Join(root, "notarius.yml")
+	workingDirectory := filepath.Join(root, "notarius-work")
+	if err := os.WriteFile(binary, []byte("#!/bin/sh\nexit 0\n"), 0o755); err != nil {
+		t.Fatalf("WriteFile(binary) error = %v", err)
+	}
+	if err := os.WriteFile(configPath, []byte("pipelines: {}\n"), 0o644); err != nil {
+		t.Fatalf("WriteFile(config) error = %v", err)
+	}
+	if err := os.Mkdir(workingDirectory, 0o755); err != nil {
+		t.Fatalf("Mkdir(working directory) error = %v", err)
+	}
+	cfg.Pipeline.Notarius = &config.NotariusConfig{
+		Enabled: enabled, Binary: binary, ConfigPath: configPath, PipelineID: "dnd-session",
+		Timeout: "45m", WorkingDirectory: workingDirectory,
+		Outputs: map[string]config.NotariusOutputConfig{
+			"npc_registry": {
+				LaneID: "npc-registry", MediaType: "application/json", SchemaID: "notarius.dnd.npc_registry",
+				SchemaVersion: "v1", ModuleKey: "dnd/npc-registry",
+			},
+		},
+	}
+	paths, err := artifacts.NewLocalStore(root).EnsureLayoutFor(cfg.Session.Campaign, cfg.Session.SessionID)
+	if err != nil {
+		t.Fatalf("EnsureLayoutFor() error = %v", err)
+	}
+	inputPath := filepath.Join(paths.ArtifactsDir, "trimmed.from-manifest.json")
+	if err := os.WriteFile(inputPath, []byte(`{"segments":[]}`), 0o644); err != nil {
+		t.Fatalf("WriteFile(input) error = %v", err)
+	}
+	m := manifest.New(cfg.Session.SessionID, time.Now().UTC())
+	m.Campaign = cfg.Session.Campaign
+	m.MarkStageSucceeded("trim", time.Now().UTC(), []manifest.ArtifactRecord{{
+		Kind: artifactmodel.TranscriptOutputKindFinalTrimmed, SourceID: artifactmodel.SourceTranscriptFinalTrimmed,
+		LocalPath: inputPath,
+	}})
+	if err := (&manifest.LocalStore{}).Save(context.Background(), paths.ManifestPath, m); err != nil {
+		t.Fatalf("Save(seed) error = %v", err)
+	}
+	runner := &materializingNotariusRunner{cfg: cfg.Pipeline.Notarius}
+	return cfg, &stage.Env{Notarius: runner}, runner
+}

internal/app/operator_artifact_rendering.go

@@ -10,9 +10,10 @@ import (
 	"gitea.maximumdirect.net/eric/narratio/internal/artifactpolicy"
 	"gitea.maximumdirect.net/eric/narratio/internal/artifacts"
 	"gitea.maximumdirect.net/eric/narratio/internal/config"
+	"gitea.maximumdirect.net/eric/narratio/internal/manifest"
 )
 
-func buildHelperArtifactCatalog(cfg *config.Config) (*artifacts.ArtifactCatalog, error) {
+func buildHelperArtifactCatalog(cfg *config.Config, m *manifest.Manifest) (*artifacts.ArtifactCatalog, error) {
 	catalog := artifacts.NewArtifactCatalog()
 	if err := catalog.RegisterBuiltIns(); err != nil {
 		return nil, err
@@ -26,6 +27,14 @@ func buildHelperArtifactCatalog(cfg *config.Config) (*artifacts.ArtifactCatalog,
 	if err := catalog.RegisterConfiguredArtifacts(configured, nil); err != nil {
 		return nil, err
 	}
+	extractionDefinitions := artifacts.ExtractionDefinitionsFromConfig(cfg.Pipeline.Notarius)
+	if err := catalog.RegisterExtractionArtifacts(extractionDefinitions); err != nil {
+		return nil, err
+	}
+	paths := artifacts.NewLocalStore(cfg.Pipeline.Workspace.Root).SessionPathsFor(cfg.Session.Campaign, cfg.Session.SessionID)
+	if cfg.Pipeline.Notarius != nil && cfg.Pipeline.Notarius.Enabled {
+		catalog.HydrateExtractionArtifacts(paths, m, extractionDefinitions)
+	}
 	return catalog, nil
 }
 
@@ -40,6 +49,14 @@ func writeArtifactList(out io.Writer, cfg *config.Config, catalog *artifacts.Art
 	for _, entry := range catalog.ListConfigured() {
 		writeArtifactLine(out, entry.SourceID, lockSet)
 	}
+	fmt.Fprintln(out, "Extraction:")
+	for _, entry := range catalog.ListExtraction() {
+		state := "unavailable"
+		if entry.Available {
+			state = "available"
+		}
+		writeExtractionArtifactLine(out, entry.SourceID, state, entry.Provenance, lockSet)
+	}
 	fmt.Fprintln(out, "Previous-session:")
 	for _, req := range artifacts.CollectPreviousArtifactRequirements(configuredScriptoriumArtifacts(cfg)) {
 		fmt.Fprintf(out, "- %s required=%t\n", artifactpolicy.PreviousSessionSourceID(req.Name), req.Required)
@@ -50,6 +67,17 @@ func writeArtifactList(out io.Writer, cfg *config.Config, catalog *artifacts.Art
 	}
 }
 
+func writeExtractionArtifactLine(out io.Writer, source, state, provenance string, lockSet map[string]config.PublishLockRule) {
+	parts := []string{source, "planned", state}
+	if strings.TrimSpace(provenance) != "" {
+		parts = append(parts, "provenance="+strings.TrimSpace(provenance))
+	}
+	if _, ok := lockSet[source]; ok {
+		parts = append(parts, "locked")
+	}
+	fmt.Fprintf(out, "- %s\n", strings.Join(parts, " "))
+}
+
 func writeArtifactLine(out io.Writer, source string, lockSet map[string]config.PublishLockRule) {
 	parts := []string{source}
 	if _, ok := lockSet[source]; ok {
@@ -103,7 +131,12 @@ func remotePublishedOutputAvailability(ctx context.Context, cfg *config.Config,
 
 func helperPublishedOutputDest(rule config.PublishOutputRule, catalog *artifacts.ArtifactCatalog) (string, bool, error) {
 	source := strings.TrimSpace(rule.Source)
-	normalized, err := artifactpolicy.ResolvePublishedDestination(source, rule.Dest, helperConfiguredOutputPathMap(catalog))
+	normalized, err := artifactpolicy.ResolvePublishedDestinationWithExtractions(
+		source,
+		rule.Dest,
+		helperConfiguredOutputPathMap(catalog),
+		helperExtractionOutputSet(catalog),
+	)
 	if err != nil {
 		return "", false, err
 	}
@@ -112,6 +145,19 @@ func helperPublishedOutputDest(rule config.PublishOutputRule, catalog *artifacts
 	return normalized, showDest, nil
 }
 
+func helperExtractionOutputSet(catalog *artifacts.ArtifactCatalog) map[string]struct{} {
+	out := map[string]struct{}{}
+	if catalog == nil {
+		return out
+	}
+	for _, entry := range catalog.ListExtraction() {
+		if strings.TrimSpace(entry.ExtractionKey) != "" {
+			out[entry.ExtractionKey] = struct{}{}
+		}
+	}
+	return out
+}
+
 func helperConfiguredOutputPathMap(catalog *artifacts.ArtifactCatalog) map[string]string {
 	out := map[string]string{}
 	if catalog == nil {

internal/app/operator_artifacts_list.go

@@ -22,11 +22,11 @@ func ArtifactsList(ctx context.Context, args []string, out io.Writer) error {
 	if strings.TrimSpace(flags.sessionID) == "" {
 		return fmt.Errorf("artifacts list: session_id is required")
 	}
-	cfg, store, locks, _, err := loadHelperContext(ctx, flags, remote)
+	cfg, store, locks, m, err := loadHelperContext(ctx, flags, remote)
 	if err != nil {
 		return fmt.Errorf("artifacts list: %w", err)
 	}
-	catalog, err := buildHelperArtifactCatalog(cfg)
+	catalog, err := buildHelperArtifactCatalog(cfg, m)
 	if err != nil {
 		return fmt.Errorf("artifacts list: %w", err)
 	}

internal/app/operator_helpers_test.go

@@ -8,8 +8,10 @@ import (
 	"path/filepath"
 	"strings"
 	"testing"
+	"time"
 
 	"gitea.maximumdirect.net/eric/narratio/internal/adapters/storage"
+	"gitea.maximumdirect.net/eric/narratio/internal/artifactmodel"
 	"gitea.maximumdirect.net/eric/narratio/internal/artifacts"
 	"gitea.maximumdirect.net/eric/narratio/internal/config"
 	"gitea.maximumdirect.net/eric/narratio/internal/manifest"
@@ -508,7 +510,7 @@ func TestExecuteLocksAddListAndRemoveUseRemoteLockStore(t *testing.T) {
 	if code != 0 {
 		t.Fatalf("locks remove exit code = %d, want 0; stderr=%q", code, stderr.String())
 	}
-	store, err := config.LoadPublishLockStoreBytes("locks.yml", fake.Objects[key].Data, nil)
+	store, err := config.LoadPublishLockStoreBytes("locks.yml", fake.Objects[key].Data, nil, nil)
 	if err != nil {
 		t.Fatalf("LoadPublishLockStoreBytes() error = %v", err)
 	}
@@ -772,6 +774,71 @@ func TestExecuteArtifactsListRemoteReportsPublishedAvailability(t *testing.T) {
 	}
 }
 
+func TestExecuteArtifactsListReportsExtractionLifecycleWithoutPayload(t *testing.T) {
+	workspaceRoot := t.TempDir()
+	pipelinePath, campaignPath, sessionPath := writeValidConfigFiles(t, workspaceRoot)
+	addExtractionOutputToPipeline(t, pipelinePath)
+	addPublishOutputsToPipeline(t, pipelinePath, `
+  outputs:
+    - source: narratio.extraction.encounters
+      dest: artifacts/encounters.json
+      required: true
+`)
+	lanePath := writeOperatorExtractionManifest(t, workspaceRoot)
+	fake := &storage.FakeBackend{}
+	publishedKey := artifacts.S3PublishedOutputKey(
+		artifacts.S3SessionPrefix("dnd", "sample-campaign", "2026-05-03"),
+		"artifacts/encounters.json",
+	)
+	fake.SeedObject(storage.FakeObject{Key: publishedKey, Data: []byte(`{"secret":"DO_NOT_PRINT"}`)})
+	var storeInitCalls int
+	restoreAppConfigTestGlobals(t, fake, &storeInitCalls, []string{sessionPath})
+
+	var stdout bytes.Buffer
+	var stderr bytes.Buffer
+	code := Execute([]string{
+		"session", "artifacts", "2026-05-03",
+		"--config", pipelinePath,
+		"--campaign-file", campaignPath,
+		"--session", sessionPath,
+		"--remote",
+	}, &stdout, &stderr)
+	if code != 0 {
+		t.Fatalf("exit code = %d, want 0; stderr=%q", code, stderr.String())
+	}
+	out := stdout.String()
+	for _, want := range []string{
+		"Extraction:",
+		"narratio.extraction.encounters planned available provenance=manifest.current_extract_run",
+		"narratio.extraction.encounters dest=artifacts/encounters.json remote=published",
+	} {
+		if !strings.Contains(out, want) {
+			t.Fatalf("stdout = %q, want %q", out, want)
+		}
+	}
+	if strings.Contains(out, "DO_NOT_PRINT") {
+		t.Fatalf("operator output exposed extraction payload: %q", out)
+	}
+
+	if err := os.Remove(lanePath); err != nil {
+		t.Fatal(err)
+	}
+	stdout.Reset()
+	stderr.Reset()
+	code = Execute([]string{
+		"session", "artifacts", "2026-05-03",
+		"--config", pipelinePath,
+		"--campaign-file", campaignPath,
+		"--session", sessionPath,
+	}, &stdout, &stderr)
+	if code != 0 {
+		t.Fatalf("unavailable exit code = %d, want 0; stderr=%q", code, stderr.String())
+	}
+	if !strings.Contains(stdout.String(), "narratio.extraction.encounters planned unavailable") {
+		t.Fatalf("stdout = %q, want unavailable extraction state", stdout.String())
+	}
+}
+
 func TestExecuteArtifactsListRemoteUsesPublishOutputDestinations(t *testing.T) {
 	workspaceRoot := t.TempDir()
 	pipelinePath, campaignPath, sessionPath := writeValidConfigFiles(t, workspaceRoot)
@@ -1006,7 +1073,7 @@ func TestExecutePublishLoadsRemoteLocks(t *testing.T) {
 	restoreAppConfigTestGlobals(t, fake, &storeInitCalls, []string{sessionPath})
 
 	workRoot := filepath.Join(workspaceRoot, "work", "sample-campaign", "2026-05-03")
-	for _, stageName := range []string{"prepare", "transcribe", "merge", "polish", "normalize", "trim", "render", "analyze"} {
+	for _, stageName := range []string{"prepare", "transcribe", "merge", "polish", "normalize", "trim", "extract", "render", "analyze"} {
 		// The publish stage only checks the manifest statuses and source files.
 		_ = stageName
 	}
@@ -1041,6 +1108,72 @@ func addPublishOutputsToPipeline(t *testing.T, pipelinePath, publishYAML string)
 	}
 }
 
+func addExtractionOutputToPipeline(t *testing.T, pipelinePath string) {
+	t.Helper()
+	data, err := os.ReadFile(pipelinePath)
+	if err != nil {
+		t.Fatal(err)
+	}
+	data = append(data, []byte(`notarius:
+  enabled: true
+  config_path: notarius.yml
+  pipeline_id: campaign.extract
+  outputs:
+    encounters:
+      lane_id: encounters
+      media_type: application/json
+      schema_id: encounters
+      schema_version: "1"
+      module_key: encounters
+`)...)
+	if err := os.WriteFile(pipelinePath, data, 0o644); err != nil {
+		t.Fatal(err)
+	}
+	if err := os.WriteFile(filepath.Join(filepath.Dir(pipelinePath), "notarius.yml"), []byte("{}\n"), 0o644); err != nil {
+		t.Fatal(err)
+	}
+}
+
+func writeOperatorExtractionManifest(t *testing.T, workspaceRoot string) string {
+	t.Helper()
+	paths := artifacts.NewLocalStore(workspaceRoot).SessionPathsFor("sample-campaign", "2026-05-03")
+	bundleRoot := filepath.Join(paths.ArtifactsDir, "notarius", "extract-run-1")
+	lanePath := filepath.Join(bundleRoot, "lanes", "encounters.json")
+	indexPath := filepath.Join(bundleRoot, "index.json")
+	mustWriteTestFile(t, lanePath, `{"secret":"DO_NOT_PRINT"}`)
+	mustWriteTestFile(t, indexPath, `{"lanes":[]}`)
+	laneChecksum, err := artifacts.SHA256File(lanePath)
+	if err != nil {
+		t.Fatal(err)
+	}
+	indexChecksum, err := artifacts.SHA256File(indexPath)
+	if err != nil {
+		t.Fatal(err)
+	}
+	m := manifest.New("2026-05-03", time.Now().UTC())
+	m.Campaign = "sample-campaign"
+	m.Stages["extract"] = &manifest.StageRecord{
+		Name: "extract", Status: manifest.StatusSucceeded,
+		Metadata: map[string]any{
+			"narratio_run_id": "extract-run-1", "bundle_root": bundleRoot,
+			"receipt": map[string]any{"run_id": "notarius-run-1", "pipeline_id": "campaign.extract"},
+		},
+		Outputs: []manifest.ArtifactRecord{
+			{
+				Kind: "notarius_lane", SourceID: artifacts.ExtractionArtifactSourceID("encounters"), LocalPath: lanePath,
+				ProducerRunID: "extract-run-1", Checksum: laneChecksum,
+				Contract:           &artifactmodel.ContractMetadata{MediaType: "application/json", SchemaID: "encounters", SchemaVersion: "1", ModuleKey: "encounters"},
+				ExternalProvenance: &artifactmodel.ExternalProvenance{System: "notarius", RunID: "notarius-run-1", PipelineID: "campaign.extract", ArtifactID: "encounters"},
+			},
+			{Kind: "notarius_index", LocalPath: indexPath, ProducerRunID: "extract-run-1", Checksum: indexChecksum},
+		},
+	}
+	if err := (&manifest.LocalStore{}).Save(context.Background(), paths.ManifestPath, m); err != nil {
+		t.Fatal(err)
+	}
+	return lanePath
+}
+
 func replaceInFileOrFatal(t *testing.T, path, old, new string) {
 	t.Helper()
 	data, err := os.ReadFile(path)
@@ -1076,7 +1209,7 @@ func writeValidPublishRunConfigFiles(t *testing.T, workspaceRoot string) (string
 	m := manifest.New("2026-05-03", nowUTC())
 	m.Campaign = "sample-campaign"
 	m.RunID = "20260521T160000Z-test"
-	for _, name := range []string{"prepare", "transcribe", "merge", "polish", "normalize", "trim", "render", "analyze"} {
+	for _, name := range []string{"prepare", "transcribe", "merge", "polish", "normalize", "trim", "extract", "render", "analyze"} {
 		m.MarkStageSucceeded(name, nowUTC(), nil)
 	}
 	path := artifacts.SessionManifestPathForCampaign(cfg.Pipeline.Workspace.Root, cfg.Session.Campaign, cfg.Session.SessionID)

internal/app/operator_locks.go

@@ -67,7 +67,7 @@ func LocksAdd(ctx context.Context, args []string, out io.Writer) error {
 	if err != nil {
 		return fmt.Errorf("locks add: %w", err)
 	}
-	if _, err := config.ValidatePublishLockRules([]config.PublishLockRule{{Source: source}}, cfg.Pipeline.Scriptorium, "locks add"); err != nil {
+	if _, err := config.ValidatePublishLockRules([]config.PublishLockRule{{Source: source}}, cfg.Pipeline.Scriptorium, cfg.Pipeline.Notarius, "locks add"); err != nil {
 		return fmt.Errorf("locks add: %w", err)
 	}
 	if _, ok := lockSourceSet(locks.Static)[source]; ok {
@@ -79,7 +79,7 @@ func LocksAdd(ctx context.Context, args []string, out io.Writer) error {
 	}
 	remoteSet[source] = config.PublishLockRule{Source: source, Reason: strings.TrimSpace(reason)}
 	remoteLocks := lockMapValues(remoteSet)
-	if _, err := config.ValidatePublishLockRules(remoteLocks, cfg.Pipeline.Scriptorium, "locks"); err != nil {
+	if _, err := config.ValidatePublishLockRules(remoteLocks, cfg.Pipeline.Scriptorium, cfg.Pipeline.Notarius, "locks"); err != nil {
 		return fmt.Errorf("locks add: %w", err)
 	}
 	if err := uploadRemoteLockStore(ctx, store, locks.Key, &config.PublishLockStore{Locks: remoteLocks}); err != nil {
@@ -106,7 +106,7 @@ func LocksRemove(ctx context.Context, args []string, out io.Writer) error {
 	if err != nil {
 		return fmt.Errorf("locks remove: %w", err)
 	}
-	if _, err := config.ValidatePublishLockRules([]config.PublishLockRule{{Source: source}}, cfg.Pipeline.Scriptorium, "locks remove"); err != nil {
+	if _, err := config.ValidatePublishLockRules([]config.PublishLockRule{{Source: source}}, cfg.Pipeline.Scriptorium, cfg.Pipeline.Notarius, "locks remove"); err != nil {
 		return fmt.Errorf("locks remove: %w", err)
 	}
 	remoteSet := lockSourceSet(locks.Remote)

internal/app/operator_status.go

@@ -11,6 +11,7 @@ import (
 	"gitea.maximumdirect.net/eric/narratio/internal/adapters/storage"
 	"gitea.maximumdirect.net/eric/narratio/internal/artifacts"
 	"gitea.maximumdirect.net/eric/narratio/internal/config"
+	"gitea.maximumdirect.net/eric/narratio/internal/manifest"
 )
 
 // Status reports effective local/remote session state.
@@ -40,11 +41,13 @@ func Status(ctx context.Context, args []string, out io.Writer) error {
 	writeStatusStableInputs(out, inspectStableInputs(cfg))
 	writeStatusLocalAudio(out, inspectLocalAudioPresence(cfg))
 
+	var localManifest *manifest.Manifest
 	if m, err := loadLocalManifest(ctx, paths.ManifestPath); err != nil {
 		fmt.Fprintf(out, "Local manifest: error: %v\n", err)
 	} else if m == nil {
 		fmt.Fprintln(out, "Local manifest: missing")
 	} else {
+		localManifest = m
 		fmt.Fprintf(out, "Local manifest: %s\n", paths.ManifestPath)
 		writeStageStatuses(out, m)
 	}
@@ -72,7 +75,7 @@ func Status(ctx context.Context, args []string, out io.Writer) error {
 	lockChecks := inspectEffectiveLocks(ctx, cfg, store)
 	locks := lockChecks.Locks
 	lockErr := lockChecks.Err
-	if catalog, catalogErr := buildHelperArtifactCatalog(cfg); catalogErr != nil {
+	if catalog, catalogErr := buildHelperArtifactCatalog(cfg, localManifest); catalogErr != nil {
 		fmt.Fprintf(out, "Remote outputs: error: %v\n", catalogErr)
 	} else if storeErr == nil {
 		catalogLocks := locks

internal/app/plan.go

@@ -22,7 +22,7 @@ func Plan(ctx context.Context, args []string, out io.Writer) error {
 	var flags commonConfigFlags
 	var force bool
 	addCommonConfigFlags(fs, &flags)
-	fs.BoolVar(&force, "force", false, "force stage execution (reserved for future behavior)")
+	fs.BoolVar(&force, "force", false, "show all stages as scheduled to rerun")
 
 	if err := parseSessionAwareFlags("plan", fs, args, &flags.sessionID); err != nil {
 		return err

internal/app/plan_test.go

@@ -27,12 +27,12 @@ func TestPlanCreatesAndReusesWorkdir(t *testing.T) {
 	if !strings.Contains(got, "narratio session plan: workdir prepared at") {
 		t.Fatalf("first output = %q, want workdir prepared", got)
 	}
-	for _, name := range []string{"prepare", "transcribe", "merge", "polish", "normalize", "trim", "render", "analyze", "publish", "notify"} {
+	for _, name := range []string{"prepare", "transcribe", "merge", "polish", "normalize", "trim", "extract", "render", "analyze", "publish", "notify"} {
 		if !strings.Contains(got, name+": run") {
 			t.Fatalf("first output = %q, missing stage %q", got, name)
 		}
 	}
-	if !strings.Contains(got, "totals: run=10 skip=0") {
+	if !strings.Contains(got, "totals: run=11 skip=0") {
 		t.Fatalf("first output = %q, want totals", got)
 	}
 
@@ -84,8 +84,8 @@ func TestPlanShowsRunAndSkipFromManifest(t *testing.T) {
 	if !strings.Contains(got, "trim: run") {
 		t.Fatalf("output = %q, want trim run", got)
 	}
-	if !strings.Contains(got, "totals: run=8 skip=2") {
-		t.Fatalf("output = %q, want totals run=8 skip=2", got)
+	if !strings.Contains(got, "totals: run=9 skip=2") {
+		t.Fatalf("output = %q, want totals run=9 skip=2", got)
 	}
 }
 

internal/app/planner_test.go

@@ -4,7 +4,7 @@ import "testing"
 
 func TestBuildFullPlanOrder(t *testing.T) {
 	got := BuildFullPlan()
-	want := []string{"prepare", "transcribe", "merge", "polish", "normalize", "trim", "render", "analyze", "publish", "notify"}
+	want := []string{"prepare", "transcribe", "merge", "polish", "normalize", "trim", "extract", "render", "analyze", "publish", "notify"}
 	if len(got) != len(want) {
 		t.Fatalf("len(plan) = %d, want %d", len(got), len(want))
 	}

internal/app/post_publish_cleanup_test.go

@@ -355,7 +355,7 @@ func publishStageCleanupFixture(t *testing.T) (*config.Config, cleanupSeed, stri
 	if err != nil {
 		t.Fatalf("Load() error = %v", err)
 	}
-	for _, name := range []string{"prepare", "transcribe", "merge", "polish", "normalize", "trim", "render", "analyze"} {
+	for _, name := range []string{"prepare", "transcribe", "merge", "polish", "normalize", "trim", "extract", "render", "analyze"} {
 		seedManifest.MarkStageSucceeded(name, time.Now().UTC(), nil)
 	}
 	seedManifest.S3SessionPrefix = artifacts.S3SessionPrefix("dnd", cfg.Session.Campaign, cfg.Session.SessionID)

internal/app/remote_locks.go

@@ -55,7 +55,7 @@ func loadRemoteLockStore(ctx context.Context, cfg *config.Config, store storage.
 	if err != nil {
 		return nil, key, fmt.Errorf("read remote locks %q: %w", key, err)
 	}
-	lockStore, err := config.LoadPublishLockStoreBytes("s3://"+s3BucketName(cfg.Pipeline)+"/"+key, data, cfg.Pipeline.Scriptorium)
+	lockStore, err := config.LoadPublishLockStoreBytes("s3://"+s3BucketName(cfg.Pipeline)+"/"+key, data, cfg.Pipeline.Scriptorium, cfg.Pipeline.Notarius)
 	if err != nil {
 		return nil, key, err
 	}

internal/app/restore_execution_test.go

@@ -9,8 +9,10 @@ import (
 	"path/filepath"
 	"strings"
 	"testing"
+	"time"
 
 	"gitea.maximumdirect.net/eric/narratio/internal/adapters/storage"
+	"gitea.maximumdirect.net/eric/narratio/internal/artifactmodel"
 	"gitea.maximumdirect.net/eric/narratio/internal/artifacts"
 	"gitea.maximumdirect.net/eric/narratio/internal/config"
 	"gitea.maximumdirect.net/eric/narratio/internal/manifest"
@@ -62,6 +64,55 @@ func TestExecuteRestoreNonDryRunRestoresDurableFiles(t *testing.T) {
 	}
 }
 
+func TestExecuteRestoreRoundTripsPublishedExtractionAndManifestMetadata(t *testing.T) {
+	workspaceRoot := t.TempDir()
+	pipelinePath, campaignPath, sessionPath := writeValidConfigFiles(t, workspaceRoot)
+	fake := &storage.FakeBackend{}
+	cfg, sessionPrefix, manifestKey, runIDKey := seedRestoreCommittedState(t, fake, pipelinePath, campaignPath, sessionPath)
+	seedRestoreObject(fake, sessionPrefix+"artifacts/encounters.json", []byte(`{"encounters":[]}`))
+	seedRestoreObject(fake, runIDKey, []byte("20260519T010203Z-a1b2c3d4\n"))
+
+	remoteManifest := manifest.New(cfg.Session.SessionID, time.Now().UTC())
+	remoteManifest.Campaign = cfg.Session.Campaign
+	remoteManifest.RunID = "20260519T010203Z-a1b2c3d4"
+	remoteManifest.Stages["extract"] = &manifest.StageRecord{
+		Name: "extract", Status: manifest.StatusSucceeded,
+		Outputs: []manifest.ArtifactRecord{{
+			Kind: "notarius_lane", SourceID: artifacts.ExtractionArtifactSourceID("encounters"),
+			LocalPath: "/prior/workspace/artifacts/notarius/extract-run-1/lanes/encounters.json",
+			Contract: &artifactmodel.ContractMetadata{
+				MediaType: "application/json", SchemaID: "encounters", SchemaVersion: "1",
+			},
+			ExternalProvenance: &artifactmodel.ExternalProvenance{
+				System: "notarius", RunID: "notarius-run-1", PipelineID: "campaign.extract", ArtifactID: "encounters",
+			},
+		}},
+	}
+	manifestBody, err := json.Marshal(remoteManifest)
+	if err != nil {
+		t.Fatal(err)
+	}
+	seedRestoreObject(fake, manifestKey, manifestBody)
+	restoreWithStoreAndRealPhases(t, fake)
+
+	var stdout bytes.Buffer
+	var stderr bytes.Buffer
+	code := Execute([]string{"session", "restore", "2026-05-03", "--config", pipelinePath, "--campaign-file", campaignPath, "--session", sessionPath}, &stdout, &stderr)
+	if code != 0 {
+		t.Fatalf("exit code = %d, want 0; stderr=%q", code, stderr.String())
+	}
+	sessionRoot := artifacts.SessionWorkDirForCampaign(workspaceRoot, cfg.Session.Campaign, cfg.Session.SessionID)
+	mustReadEquals(t, filepath.Join(sessionRoot, "artifacts", "encounters.json"), `{"encounters":[]}`)
+	restored, err := (&manifest.LocalStore{}).Load(context.Background(), filepath.Join(sessionRoot, "manifest.json"))
+	if err != nil {
+		t.Fatalf("load restored manifest: %v", err)
+	}
+	lane := restored.Stages["extract"].Outputs[0]
+	if lane.Contract == nil || lane.Contract.SchemaID != "encounters" || lane.ExternalProvenance == nil || lane.ExternalProvenance.RunID != "notarius-run-1" {
+		t.Fatalf("restored extraction metadata = %#v", lane)
+	}
+}
+
 func TestExecuteRestoreIncludeAudioRestoresAudio(t *testing.T) {
 	workspaceRoot := t.TempDir()
 	pipelinePath, campaignPath, sessionPath := writeValidConfigFiles(t, workspaceRoot)

internal/app/run.go

@@ -18,7 +18,7 @@ func Run(ctx context.Context, args []string, out io.Writer) error {
 	var force bool
 	var selectedArtifacts artifactSelectionFlag
 	addCommonConfigFlags(fs, &flags)
-	fs.BoolVar(&force, "force", false, "force stage execution (reserved for future behavior)")
+	fs.BoolVar(&force, "force", false, "rerun stages even when already succeeded")
 	fs.Var(&selectedArtifacts, "artifacts", "configured artifact names to execute and publish (comma-separated or repeatable)")
 
 	if err := parseSessionAwareFlags("run", fs, args, &flags.sessionID); err != nil {

internal/app/run_control.go

@@ -3,6 +3,7 @@ package app
 import (
 	"context"
 	"fmt"
+	"strings"
 	"time"
 
 	"gitea.maximumdirect.net/eric/narratio/internal/artifacts"
@@ -23,22 +24,40 @@ type stageDecision struct {
 	Action stageAction
 }
 
+const (
+	staleReasonForcedReplacement = "upstream stage was force-run"
+	staleReasonChangedResult     = "upstream stage result changed"
+	staleReasonFailure           = "upstream stage failed"
+	staleReasonSelfSkip          = "upstream stage self-skipped"
+	staleReasonNotResumable      = "upstream stage result was not resumable"
+)
+
+type priorStageOutcome struct {
+	exists     bool
+	status     manifest.StageStatus
+	skipReason string
+	outputs    int
+}
+
 func decideStageActions(stages []stage.Stage, m *manifest.Manifest, force bool) []stageDecision {
 	out := make([]stageDecision, 0, len(stages))
 	for _, s := range stages {
-		action := stageActionRun
-		// TODO: incorporate stale detection once checksum/input change tracking is implemented.
-		if !force && stageSucceeded(m, s.Name()) {
-			action = stageActionSkip
-		}
 		out = append(out, stageDecision{
 			Stage:  s,
-			Action: action,
+			Action: decideStageAction(s, m, force),
 		})
 	}
 	return out
 }
 
+func decideStageAction(s stage.Stage, m *manifest.Manifest, force bool) stageAction {
+	// TODO: incorporate stale detection once checksum/input change tracking is implemented.
+	if !force && stageSucceeded(m, s.Name()) {
+		return stageActionSkip
+	}
+	return stageActionRun
+}
+
 func stageSucceeded(m *manifest.Manifest, name string) bool {
 	if m == nil || m.Stages == nil {
 		return false
@@ -47,6 +66,29 @@ func stageSucceeded(m *manifest.Manifest, name string) bool {
 	return sr != nil && sr.Status == manifest.StatusSucceeded
 }
 
+func capturePriorStageOutcome(m *manifest.Manifest, name string) priorStageOutcome {
+	if m == nil || m.Stages == nil || m.Stages[name] == nil {
+		return priorStageOutcome{}
+	}
+	record := m.Stages[name]
+	outcome := priorStageOutcome{
+		exists:  true,
+		status:  record.Status,
+		outputs: len(record.Outputs),
+	}
+	if record.Error != nil && record.Error.Code == "skipped" {
+		outcome.skipReason = record.Error.Message
+	}
+	return outcome
+}
+
+func (o priorStageOutcome) isSameSelfSkip(reason string) bool {
+	return o.exists &&
+		o.status == manifest.StatusSkipped &&
+		o.outputs == 0 &&
+		o.skipReason == strings.TrimSpace(reason)
+}
+
 func loadManifestIfPresent(ctx context.Context, cfg *config.Config) (*manifest.Manifest, error) {
 	path := artifacts.SessionManifestPathForCampaign(
 		cfg.Pipeline.Workspace.Root,
@@ -91,7 +133,7 @@ func downstreamStageNames(stageName string) []string {
 	return nil
 }
 
-func invalidateDownstreamSucceededStages(m *manifest.Manifest, upstreamStage string, at time.Time) []string {
+func invalidateDownstreamSucceededStagesWithReason(m *manifest.Manifest, upstreamStage string, at time.Time, reason string) []string {
 	if m == nil || m.Stages == nil {
 		return nil
 	}
@@ -102,7 +144,7 @@ func invalidateDownstreamSucceededStages(m *manifest.Manifest, upstreamStage str
 		if sr == nil || sr.Status != manifest.StatusSucceeded {
 			continue
 		}
-		m.MarkStageStale(downstream, at, "upstream stage rerun with force")
+		m.MarkStageStale(downstream, at, reason)
 		invalidated = append(invalidated, downstream)
 	}
 	return invalidated

internal/app/run_control_test.go

@@ -32,7 +32,7 @@ func TestDecideStageActions(t *testing.T) {
 
 func TestDownstreamStageNames(t *testing.T) {
 	got := downstreamStageNames("polish")
-	want := []string{"normalize", "trim", "render", "analyze", "publish", "notify"}
+	want := []string{"normalize", "trim", "extract", "render", "analyze", "publish", "notify"}
 	if !reflect.DeepEqual(got, want) {
 		t.Fatalf("downstreamStageNames(polish) = %#v, want %#v", got, want)
 	}
@@ -43,7 +43,7 @@ func TestDownstreamStageNames(t *testing.T) {
 	}
 }
 
-func TestInvalidateDownstreamSucceededStages(t *testing.T) {
+func TestInvalidateDownstreamSucceededStagesWithReason(t *testing.T) {
 	now := time.Now().UTC()
 	m := manifest.New("2026-05-03", now)
 	m.MarkStageSucceeded("prepare", now, nil)
@@ -52,15 +52,16 @@ func TestInvalidateDownstreamSucceededStages(t *testing.T) {
 	m.MarkStageSucceeded("polish", now, nil)
 	m.MarkStageSucceeded("normalize", now, nil)
 	m.MarkStageSucceeded("trim", now, nil)
+	m.MarkStageSucceeded("extract", now, nil)
 	m.MarkStageSucceeded("render", now, nil)
 	m.MarkStageFailed("analyze", now, "analysis failed")
 	m.MarkStageSucceeded("publish", now, nil)
 	m.MarkStageSucceeded("notify", now, nil)
 
-	got := invalidateDownstreamSucceededStages(m, "polish", now.Add(1*time.Second))
-	want := []string{"normalize", "trim", "render", "publish", "notify"}
+	got := invalidateDownstreamSucceededStagesWithReason(m, "polish", now.Add(1*time.Second), staleReasonChangedResult)
+	want := []string{"normalize", "trim", "extract", "render", "publish", "notify"}
 	if !reflect.DeepEqual(got, want) {
-		t.Fatalf("invalidateDownstreamSucceededStages() = %#v, want %#v", got, want)
+		t.Fatalf("invalidateDownstreamSucceededStagesWithReason() = %#v, want %#v", got, want)
 	}
 
 	for _, stageName := range want {
@@ -75,3 +76,30 @@ func TestInvalidateDownstreamSucceededStages(t *testing.T) {
 		t.Fatalf("prepare status = %q, want succeeded", m.Stages["prepare"].Status)
 	}
 }
+
+func TestExtractionPositionControlsForceInvalidation(t *testing.T) {
+	now := time.Now().UTC()
+	tests := []struct {
+		upstream string
+		want     []string
+	}{
+		{upstream: "trim", want: []string{"extract", "render", "analyze", "publish", "notify"}},
+		{upstream: "extract", want: []string{"render", "analyze", "publish", "notify"}},
+		{upstream: "render", want: []string{"analyze", "publish", "notify"}},
+	}
+	for _, test := range tests {
+		t.Run(test.upstream, func(t *testing.T) {
+			m := manifest.New("2026-05-03", now)
+			for _, name := range canonicalStageNames() {
+				m.MarkStageSucceeded(name, now, nil)
+			}
+			got := invalidateDownstreamSucceededStagesWithReason(m, test.upstream, now.Add(time.Second), staleReasonForcedReplacement)
+			if !reflect.DeepEqual(got, test.want) {
+				t.Fatalf("invalidated = %#v, want %#v", got, test.want)
+			}
+			if test.upstream == "render" && m.Stages["extract"].Status != manifest.StatusSucceeded {
+				t.Fatalf("forcing render changed extract: %#v", m.Stages["extract"])
+			}
+		})
+	}
+}

internal/app/run_stage.go

@@ -27,7 +27,7 @@ func RunStage(ctx context.Context, args []string, out io.Writer) error {
 	var force bool
 	var selectedArtifacts artifactSelectionFlag
 	addCommonConfigFlags(fs, &flags)
-	fs.BoolVar(&force, "force", false, "force stage execution (reserved for future behavior)")
+	fs.BoolVar(&force, "force", false, "rerun the stage even when already succeeded")
 	fs.Var(&selectedArtifacts, "artifacts", "configured artifact names to execute or publish (comma-separated or repeatable)")
 
 	if err := fs.Parse(args); err != nil {

internal/app/run_stage_test.go

@@ -36,8 +36,8 @@ func TestRunContinuesAfterCompletedStages(t *testing.T) {
 	if err != nil {
 		t.Fatalf("Run() error = %v", err)
 	}
-	if !strings.Contains(out.String(), "executed=8 skipped=2") {
-		t.Fatalf("output = %q, want executed=8 skipped=2", out.String())
+	if !strings.Contains(out.String(), "executed=9 skipped=3") {
+		t.Fatalf("output = %q, want executed=9 skipped=3", out.String())
 	}
 
 	loaded, err := store.Load(context.Background(), manifestPath)
@@ -59,6 +59,7 @@ func TestRunNoRemainingStagesRecordsSkippedStages(t *testing.T) {
 	for _, name := range []string{"prepare", "transcribe", "merge", "polish", "normalize", "trim", "render", "analyze", "publish", "notify"} {
 		m.MarkStageSucceeded(name, time.Date(2026, 5, 3, 10, 1, 0, 0, time.UTC), nil)
 	}
+	m.MarkStageSkipped("extract", time.Date(2026, 5, 3, 10, 1, 0, 0, time.UTC), "notarius_disabled")
 	if err := store.Save(context.Background(), manifestPath, m); err != nil {
 		t.Fatalf("save manifest: %v", err)
 	}
@@ -68,8 +69,15 @@ func TestRunNoRemainingStagesRecordsSkippedStages(t *testing.T) {
 	if err != nil {
 		t.Fatalf("Run() error = %v", err)
 	}
-	if !strings.Contains(out.String(), "executed=0 skipped=10") {
-		t.Fatalf("output = %q, want executed=0 skipped=10", out.String())
+	if !strings.Contains(out.String(), "executed=1 skipped=11") {
+		t.Fatalf("output = %q, want disabled extraction to self-skip", out.String())
+	}
+	loaded, err := store.Load(context.Background(), manifestPath)
+	if err != nil {
+		t.Fatalf("load migrated manifest: %v", err)
+	}
+	if loaded.Stages["extract"] == nil || loaded.Stages["extract"].Status != manifest.StatusSkipped {
+		t.Fatalf("extract record = %#v, want stable disabled skip", loaded.Stages["extract"])
 	}
 }
 
@@ -85,7 +93,7 @@ func TestRunForceRerunsSucceeded(t *testing.T) {
 
 	store := &manifest.LocalStore{}
 	m := manifest.New("2026-05-03", time.Date(2026, 5, 3, 10, 0, 0, 0, time.UTC))
-	for _, name := range []string{"prepare", "transcribe", "merge", "polish", "normalize", "trim", "render", "analyze", "publish", "notify"} {
+	for _, name := range []string{"prepare", "transcribe", "merge", "polish", "normalize", "trim", "extract", "render", "analyze", "publish", "notify"} {
 		m.MarkStageSucceeded(name, time.Date(2026, 5, 3, 10, 1, 0, 0, time.UTC), nil)
 	}
 	if err := store.Save(context.Background(), manifestPath, m); err != nil {
@@ -97,7 +105,7 @@ func TestRunForceRerunsSucceeded(t *testing.T) {
 	if err != nil {
 		t.Fatalf("Run() error = %v", err)
 	}
-	if !strings.Contains(out.String(), "executed=10 skipped=0") {
+	if !strings.Contains(out.String(), "executed=11 skipped=1") {
 		t.Fatalf("output = %q, want forced full rerun", out.String())
 	}
 }
@@ -132,6 +140,27 @@ func TestRunStageExecutesOnlySelectedStage(t *testing.T) {
 	}
 }
 
+func TestRunStageExtractIsAcceptedAndSelfSkipsWhenDisabled(t *testing.T) {
+	workspaceRoot := t.TempDir()
+	pipelinePath, campaignPath, sessionPath := writeValidConfigFiles(t, workspaceRoot)
+
+	var out bytes.Buffer
+	err := RunStage(context.Background(), []string{"extract", "2026-05-03", "--config", pipelinePath, "--campaign-file", campaignPath, "--session", sessionPath}, &out)
+	if err != nil {
+		t.Fatalf("RunStage(extract) error = %v", err)
+	}
+	if !strings.Contains(out.String(), "stage=extract executed=1 skipped=1 force=false") {
+		t.Fatalf("output = %q, want disabled extraction self-skip", out.String())
+	}
+	loaded, err := (&manifest.LocalStore{}).Load(context.Background(), filepath.Join(workspaceRoot, "work", "sample-campaign", "2026-05-03", "manifest.json"))
+	if err != nil {
+		t.Fatalf("Load() error = %v", err)
+	}
+	if loaded.Stages["extract"] == nil || loaded.Stages["extract"].Status != manifest.StatusSkipped {
+		t.Fatalf("extract record = %#v, want skipped", loaded.Stages["extract"])
+	}
+}
+
 func TestRunStageSkipAndForce(t *testing.T) {
 	workspaceRoot := t.TempDir()
 	pipelinePath, campaignPath, sessionPath := writeValidConfigFiles(t, workspaceRoot)
@@ -176,7 +205,7 @@ func TestRunStageForceMarksDownstreamStaleAndRunContinuesFromStale(t *testing.T)
 
 	store := &manifest.LocalStore{}
 	seed := manifest.New("2026-05-03", time.Date(2026, 5, 3, 10, 0, 0, 0, time.UTC))
-	for _, name := range []string{"prepare", "transcribe", "merge", "polish", "normalize", "trim", "render", "analyze", "publish", "notify"} {
+	for _, name := range []string{"prepare", "transcribe", "merge", "polish", "normalize", "trim", "extract", "render", "analyze", "publish", "notify"} {
 		seed.MarkStageSucceeded(name, time.Date(2026, 5, 3, 10, 1, 0, 0, time.UTC), nil)
 	}
 	if err := store.Save(context.Background(), manifestPath, seed); err != nil {
@@ -196,7 +225,7 @@ func TestRunStageForceMarksDownstreamStaleAndRunContinuesFromStale(t *testing.T)
 	if err != nil {
 		t.Fatalf("load manifest after force: %v", err)
 	}
-	for _, name := range []string{"normalize", "trim", "render", "analyze", "publish", "notify"} {
+	for _, name := range []string{"normalize", "trim", "extract", "render", "analyze", "publish", "notify"} {
 		if afterForce.Stages[name] == nil || afterForce.Stages[name].Status != manifest.StatusStale {
 			t.Fatalf("stage %q = %#v, want stale", name, afterForce.Stages[name])
 		}
@@ -207,7 +236,7 @@ func TestRunStageForceMarksDownstreamStaleAndRunContinuesFromStale(t *testing.T)
 	if err != nil {
 		t.Fatalf("Run() error = %v", err)
 	}
-	if !strings.Contains(out.String(), "executed=6 skipped=4") {
+	if !strings.Contains(out.String(), "executed=7 skipped=5") {
 		t.Fatalf("output = %q, want run to execute stale downstream stages", out.String())
 	}
 }

internal/app/runner.go

@@ -8,6 +8,7 @@ import (
 	"strings"
 
 	"gitea.maximumdirect.net/eric/narratio/internal/adapters/audita"
+	"gitea.maximumdirect.net/eric/narratio/internal/adapters/notarius"
 	"gitea.maximumdirect.net/eric/narratio/internal/adapters/notify"
 	"gitea.maximumdirect.net/eric/narratio/internal/adapters/scriptorium"
 	"gitea.maximumdirect.net/eric/narratio/internal/adapters/seriatim"
@@ -80,6 +81,9 @@ func executeStages(ctx context.Context, cfg *config.Config, stages []stage.Stage
 		}
 		env.Audita = runner
 	}
+	if env.Notarius == nil && needsNotariusForRun(env.Config, stages) {
+		env.Notarius = notarius.NewSubprocessRunner()
+	}
 	if env.Scriptorium == nil {
 		env.Scriptorium = scriptorium.NewSubprocessRunner()
 	}
@@ -167,6 +171,29 @@ func executeStages(ctx context.Context, cfg *config.Config, stages []stage.Stage
 	for _, d := range decisions {
 		s := d.Stage
 		runNames = append(runNames, s.Name())
+		d.Action = decideStageAction(s, m, opts.Force)
+
+		if d.Action == stageActionSkip {
+			if validator, ok := s.(stage.ResumeValidator); ok {
+				validation, err := validator.ValidateResume(ctx, stageEnv, m)
+				if err != nil {
+					return nil, fmt.Errorf("validate resume for stage %q: %w", s.Name(), err)
+				}
+				validation = validation.Normalized()
+				if !validation.Resumable {
+					staleAt := nowUTC()
+					m.MarkStageStale(s.Name(), staleAt, validation.Reason)
+					invalidateDownstreamSucceededStagesWithReason(
+						m, s.Name(), staleAt, staleReasonNotResumable,
+					)
+					if err := env.ManifestStore.Save(ctx, manifestPath, m); err != nil {
+						return nil, fmt.Errorf("save manifest after resume validation for stage %q: %w", s.Name(), err)
+					}
+					env.Logger.Info("stage result is not resumable", "stage", s.Name(), "reason", validation.Reason)
+					d.Action = stageActionRun
+				}
+			}
+		}
 
 		if d.Action == stageActionSkip {
 			skipped = append(skipped, s.Name())
@@ -180,6 +207,7 @@ func executeStages(ctx context.Context, cfg *config.Config, stages []stage.Stage
 			continue
 		}
 		executed = append(executed, s.Name())
+		priorOutcome := capturePriorStageOutcome(m, s.Name())
 
 		now := nowUTC()
 		runManifest.SetStageAction(s.Name(), manifest.RunStageActionRun, now)
@@ -188,6 +216,9 @@ func executeStages(ctx context.Context, cfg *config.Config, stages []stage.Stage
 			return nil, fmt.Errorf("save run manifest before stage %q: %w", s.Name(), err)
 		}
 		m.MarkStageRunning(s.Name(), now)
+		if opts.Force {
+			invalidateDownstreamSucceededStagesWithReason(m, s.Name(), now, staleReasonForcedReplacement)
+		}
 		env.Logger.Info("starting stage", "stage", s.Name())
 		if err := env.ManifestStore.Save(ctx, manifestPath, m); err != nil {
 			return nil, fmt.Errorf("save manifest before stage %q: %w", s.Name(), err)
@@ -195,9 +226,13 @@ func executeStages(ctx context.Context, cfg *config.Config, stages []stage.Stage
 		env.Logger.Debug("manifest saved", "stage", s.Name(), "transition", "running", "path", manifestPath)
 
 		result, err := s.Run(ctx, stageEnv, m)
+		if err == nil {
+			err = validateStageResult(result)
+		}
 		if err != nil {
 			failedAt := nowUTC()
 			m.MarkStageFailed(s.Name(), failedAt, err.Error())
+			invalidateDownstreamSucceededStagesWithReason(m, s.Name(), failedAt, staleReasonFailure)
 			if saveErr := env.ManifestStore.Save(ctx, manifestPath, m); saveErr != nil {
 				return nil, fmt.Errorf("stage %q failed (%v) and manifest save failed (%v)", s.Name(), err, saveErr)
 			}
@@ -209,13 +244,34 @@ func executeStages(ctx context.Context, cfg *config.Config, stages []stage.Stage
 			env.Logger.Info("stage failed", "stage", s.Name(), "error", err)
 			return nil, fmt.Errorf("stage %q failed: %w", s.Name(), err)
 		}
+		if result != nil && result.Disposition == stage.StageDispositionSkipped {
+			skipped = append(skipped, s.Name())
+			skippedAt := nowUTC()
+			m.MarkStageSkipped(s.Name(), skippedAt, result.SkipReason)
+			applyStageResultToManifest(m, s.Name(), result)
+			if !priorOutcome.isSameSelfSkip(result.SkipReason) {
+				invalidateDownstreamSucceededStagesWithReason(m, s.Name(), skippedAt, staleReasonSelfSkip)
+			}
+			if err := env.ManifestStore.Save(ctx, manifestPath, m); err != nil {
+				return nil, fmt.Errorf("save manifest after self-skip %q: %w", s.Name(), err)
+			}
+			runManifest.MarkStageSkipped(s.Name(), skippedAt, result.SkipReason)
+			applyStageResultToRunManifest(runManifest, s.Name(), result)
+			syncRunManifestIdentityFromSession(m, runManifest)
+			if err := runManifestStore.SaveRun(ctx, runManifestPath, runManifest); err != nil {
+				return nil, fmt.Errorf("save run manifest after self-skip %q: %w", s.Name(), err)
+			}
+			env.Logger.Debug("manifest saved", "stage", s.Name(), "transition", "skipped", "path", manifestPath)
+			env.Logger.Info("stage skipped", "stage", s.Name(), "reason", result.SkipReason)
+			continue
+		}
 
 		outputs := mapResultOutputs(s.Name(), result, runID)
 		succeededAt := nowUTC()
 		m.MarkStageSucceeded(s.Name(), succeededAt, outputs)
 		applyStageResultToManifest(m, s.Name(), result)
-		if opts.Force {
-			invalidateDownstreamSucceededStages(m, s.Name(), succeededAt)
+		if !priorOutcome.exists || priorOutcome.status != manifest.StatusSucceeded {
+			invalidateDownstreamSucceededStagesWithReason(m, s.Name(), succeededAt, staleReasonChangedResult)
 		}
 
 		if err := env.ManifestStore.Save(ctx, manifestPath, m); err != nil {
@@ -407,26 +463,69 @@ func mapResultOutputs(stageName string, result *stage.StageResult, runID string)
 			localPath = ref.RelativePath
 		}
 		kind := ref.Kind
-		sourceID := ""
-		if stageName == "analyze" {
-			sourceID = artifacts.ConfiguredArtifactSourceID(ref.Kind)
-			kind = "scriptorium_artifact"
-		} else {
-			sourceID = sourceIDForOutputKind(kind)
+		sourceID := strings.TrimSpace(ref.SourceID)
+		if sourceID == "" {
+			if stageName == "analyze" {
+				sourceID = artifacts.ConfiguredArtifactSourceID(ref.Kind)
+				kind = "scriptorium_artifact"
+			} else {
+				sourceID = sourceIDForOutputKind(kind)
+			}
 		}
 		out = append(out, manifest.ArtifactRecord{
-			Kind:          kind,
-			SourceID:      sourceID,
-			LocalPath:     localPath,
-			ProducerRunID: runID,
-			RemoteKey:     ref.RemoteKey,
-			Checksum:      ref.Checksum,
+			Kind:               kind,
+			SourceID:           sourceID,
+			LocalPath:          localPath,
+			Contract:           cloneContractMetadata(ref.Contract),
+			ExternalProvenance: cloneExternalProvenance(ref.ExternalProvenance),
+			ProducerRunID:      runID,
+			RemoteKey:          ref.RemoteKey,
+			Checksum:           ref.Checksum,
 		})
 	}
 
 	return out
 }
 
+func validateStageResult(result *stage.StageResult) error {
+	if result == nil {
+		return nil
+	}
+	switch result.Disposition {
+	case stage.StageDispositionSucceeded:
+		if strings.TrimSpace(result.SkipReason) != "" {
+			return fmt.Errorf("successful result contains a skip reason")
+		}
+		return nil
+	case stage.StageDispositionSkipped:
+		if strings.TrimSpace(result.SkipReason) == "" {
+			return fmt.Errorf("skipped result requires a skip reason")
+		}
+		if len(result.Outputs) != 0 {
+			return fmt.Errorf("skipped result contains %d output(s)", len(result.Outputs))
+		}
+		return nil
+	default:
+		return fmt.Errorf("unsupported stage result disposition %q", result.Disposition)
+	}
+}
+
+func cloneContractMetadata(value *artifactmodel.ContractMetadata) *artifactmodel.ContractMetadata {
+	if value == nil {
+		return nil
+	}
+	cloned := *value
+	return &cloned
+}
+
+func cloneExternalProvenance(value *artifactmodel.ExternalProvenance) *artifactmodel.ExternalProvenance {
+	if value == nil {
+		return nil
+	}
+	cloned := *value
+	return &cloned
+}
+
 func sourceIDForOutputKind(kind string) string {
 	trimmed := strings.TrimSpace(kind)
 	if trimmed == "" {
@@ -598,6 +697,18 @@ func needsObjectStoreForRun(cfg *config.Config, stages []stage.Stage) bool {
 	return true
 }
 
+func needsNotariusForRun(cfg *config.Config, stages []stage.Stage) bool {
+	if cfg == nil || cfg.Pipeline == nil || cfg.Pipeline.Notarius == nil || !cfg.Pipeline.Notarius.Enabled {
+		return false
+	}
+	for _, candidate := range stages {
+		if candidate != nil && candidate.Name() == "extract" {
+			return true
+		}
+	}
+	return false
+}
+
 func needsRemoteLocksForRun(cfg *config.Config, stages []stage.Stage) bool {
 	if cfg == nil || cfg.Pipeline == nil || cfg.Session == nil {
 		return false

internal/app/runner_test.go

@@ -2,6 +2,7 @@ package app
 
 import (
 	"context"
+	"encoding/json"
 	"errors"
 	"fmt"
 	"os"
@@ -16,6 +17,7 @@ import (
 	"gitea.maximumdirect.net/eric/narratio/internal/adapters/seriatim"
 	"gitea.maximumdirect.net/eric/narratio/internal/adapters/storage"
 	"gitea.maximumdirect.net/eric/narratio/internal/adapters/whisperx"
+	"gitea.maximumdirect.net/eric/narratio/internal/artifactmodel"
 	"gitea.maximumdirect.net/eric/narratio/internal/artifacts"
 	"gitea.maximumdirect.net/eric/narratio/internal/config"
 	"gitea.maximumdirect.net/eric/narratio/internal/manifest"
@@ -38,6 +40,25 @@ type countingStage struct {
 	runs *int
 }
 
+type resultStage struct {
+	name   string
+	result *stage.StageResult
+	runs   *int
+	order  *[]string
+}
+
+func (s resultStage) Name() string           { return s.name }
+func (s resultStage) Declares() stage.IODecl { return stage.IODecl{} }
+func (s resultStage) Run(_ context.Context, _ *stage.Env, _ *manifest.Manifest) (*stage.StageResult, error) {
+	if s.runs != nil {
+		*s.runs = *s.runs + 1
+	}
+	if s.order != nil {
+		*s.order = append(*s.order, s.name)
+	}
+	return s.result, nil
+}
+
 func (s countingStage) Name() string           { return s.name }
 func (s countingStage) Declares() stage.IODecl { return stage.IODecl{} }
 func (s countingStage) Run(_ context.Context, _ *stage.Env, _ *manifest.Manifest) (*stage.StageResult, error) {
@@ -50,6 +71,34 @@ type captureSelectedArtifactsStage struct {
 	captured *[]string
 }
 
+type captureNotariusStage struct {
+	captured *bool
+}
+
+type resumeCheckingStage struct {
+	name        string
+	validation  stage.ResumeValidation
+	validateErr error
+	runs        *int
+}
+
+func (s resumeCheckingStage) Name() string           { return s.name }
+func (s resumeCheckingStage) Declares() stage.IODecl { return stage.IODecl{} }
+func (s resumeCheckingStage) Run(_ context.Context, _ *stage.Env, _ *manifest.Manifest) (*stage.StageResult, error) {
+	*s.runs++
+	return &stage.StageResult{}, nil
+}
+func (s resumeCheckingStage) ValidateResume(_ context.Context, _ *stage.Env, _ *manifest.Manifest) (stage.ResumeValidation, error) {
+	return s.validation, s.validateErr
+}
+
+func (s captureNotariusStage) Name() string           { return "extract" }
+func (s captureNotariusStage) Declares() stage.IODecl { return stage.IODecl{} }
+func (s captureNotariusStage) Run(_ context.Context, env *stage.Env, _ *manifest.Manifest) (*stage.StageResult, error) {
+	*s.captured = env.Notarius != nil
+	return &stage.StageResult{}, nil
+}
+
 func (s captureSelectedArtifactsStage) Name() string           { return s.name }
 func (s captureSelectedArtifactsStage) Declares() stage.IODecl { return stage.IODecl{} }
 func (s captureSelectedArtifactsStage) Run(_ context.Context, env *stage.Env, _ *manifest.Manifest) (*stage.StageResult, error) {
@@ -134,6 +183,28 @@ func TestExecuteStagesPropagatesSelectedArtifactsToEnv(t *testing.T) {
 	}
 }
 
+func TestExecuteStagesComposesNotariusOnlyForEnabledExtraction(t *testing.T) {
+	cfg := testConfig(t)
+	cfg.Pipeline.Notarius = &config.NotariusConfig{Enabled: true}
+	captured := false
+
+	_, err := executeStages(context.Background(), cfg, []stage.Stage{captureNotariusStage{captured: &captured}}, RunOptions{})
+	if err != nil {
+		t.Fatalf("executeStages() error = %v", err)
+	}
+	if !captured {
+		t.Fatal("extract stage did not receive the default Notarius runner")
+	}
+
+	if needsNotariusForRun(cfg, []stage.Stage{countingStage{name: "analyze", runs: new(int)}}) {
+		t.Fatal("Notarius runner requested without extract in the selected plan")
+	}
+	cfg.Pipeline.Notarius.Enabled = false
+	if needsNotariusForRun(cfg, []stage.Stage{captureNotariusStage{captured: new(bool)}}) {
+		t.Fatal("Notarius runner requested while extraction is disabled")
+	}
+}
+
 func TestExecuteStagesAnalyzeOutputsPersistAsScriptoriumArtifacts(t *testing.T) {
 	cfg := testConfig(t)
 	storeForPaths := artifacts.NewLocalStore(cfg.Pipeline.Workspace.Root)
@@ -199,6 +270,61 @@ func TestExecuteStagesAnalyzeOutputsPersistAsScriptoriumArtifacts(t *testing.T)
 	}
 }
 
+func TestMapResultOutputsPrefersExplicitSourceAndCopiesMetadata(t *testing.T) {
+	contract := &artifactmodel.ContractMetadata{
+		MediaType:     "application/json",
+		SchemaID:      "notarius.dnd.npc_registry",
+		SchemaVersion: "v1",
+	}
+	provenance := &artifactmodel.ExternalProvenance{
+		System:     "notarius",
+		RunID:      "external-run",
+		PipelineID: "dnd-session",
+		ArtifactID: "npc-registry",
+	}
+	result := &stage.StageResult{Outputs: []artifacts.Ref{{
+		Kind:               "structured_data",
+		SourceID:           "narratio.example.npcs",
+		RelativePath:       "artifacts/npcs.json",
+		Contract:           contract,
+		ExternalProvenance: provenance,
+	}}}
+
+	got := mapResultOutputs("analyze", result, "narratio-run")
+	if len(got) != 1 {
+		t.Fatalf("outputs len = %d, want 1", len(got))
+	}
+	if got[0].SourceID != "narratio.example.npcs" {
+		t.Fatalf("source_id = %q, want explicit source", got[0].SourceID)
+	}
+	if got[0].Kind != "structured_data" {
+		t.Fatalf("kind = %q, want explicit output kind preserved", got[0].Kind)
+	}
+	if got[0].Contract == nil || *got[0].Contract != *contract {
+		t.Fatalf("contract = %#v, want %#v", got[0].Contract, contract)
+	}
+	if got[0].ExternalProvenance == nil || *got[0].ExternalProvenance != *provenance {
+		t.Fatalf("external provenance = %#v, want %#v", got[0].ExternalProvenance, provenance)
+	}
+	if got[0].Contract == contract || got[0].ExternalProvenance == provenance {
+		t.Fatal("mapped metadata should not alias the stage result")
+	}
+}
+
+func TestMapResultOutputsRetainsFallbackInference(t *testing.T) {
+	transcript := mapResultOutputs("trim", &stage.StageResult{Outputs: []artifacts.Ref{{
+		Kind: artifactmodel.TranscriptOutputKindFinalTrimmed,
+	}}}, "run-id")
+	if len(transcript) != 1 || transcript[0].SourceID != artifacts.ArtifactTranscriptFinalTrimmed {
+		t.Fatalf("transcript fallback = %#v, want final-trimmed source", transcript)
+	}
+
+	analyze := mapResultOutputs("analyze", &stage.StageResult{Outputs: []artifacts.Ref{{Kind: "session_recap"}}}, "run-id")
+	if len(analyze) != 1 || analyze[0].SourceID != "narratio.artifact.session_recap" || analyze[0].Kind != "scriptorium_artifact" {
+		t.Fatalf("analyze fallback = %#v, want configured artifact inference", analyze)
+	}
+}
+
 func TestNeedsObjectStoreForRunPrepareWithPreviousRequirements(t *testing.T) {
 	tests := []struct {
 		name              string
@@ -273,7 +399,7 @@ func TestExecuteStagesPublishSkipsRequiredUnselectedConfiguredOutput(t *testing.
 	manifestPath := manifestPathFor(cfg)
 	seed := manifest.New(cfg.Session.SessionID, time.Now().UTC())
 	seed.Campaign = cfg.Session.Campaign
-	for _, stageName := range []string{"prepare", "transcribe", "merge", "polish", "normalize", "trim", "render"} {
+	for _, stageName := range []string{"prepare", "transcribe", "merge", "polish", "normalize", "trim", "extract", "render"} {
 		seed.MarkStageSucceeded(stageName, time.Now().UTC(), nil)
 	}
 	if err := os.MkdirAll(filepath.Dir(manifestPath), 0o755); err != nil {
@@ -332,8 +458,8 @@ func TestExecuteStagesPlaceholderSuccessUpdatesManifest(t *testing.T) {
 	if err != nil {
 		t.Fatalf("executeStages() error = %v", err)
 	}
-	if len(summary.StageNames) != 10 || len(summary.Executed) != 10 || len(summary.Skipped) != 0 {
-		t.Fatalf("summary = %#v, want all 10 executed", summary)
+	if len(summary.StageNames) != 11 || len(summary.Executed) != 11 || len(summary.Skipped) != 1 || summary.Skipped[0] != "extract" {
+		t.Fatalf("summary = %#v, want full plan with disabled extraction self-skip", summary)
 	}
 
 	store := &manifest.LocalStore{}
@@ -342,11 +468,17 @@ func TestExecuteStagesPlaceholderSuccessUpdatesManifest(t *testing.T) {
 		t.Fatalf("Load manifest error = %v", err)
 	}
 
-	for _, name := range []string{"prepare", "transcribe", "merge", "polish", "normalize", "trim", "render", "analyze", "publish", "notify"} {
+	for _, name := range []string{"prepare", "transcribe", "merge", "polish", "normalize", "trim", "extract", "render", "analyze", "publish", "notify"} {
 		sr := m.Stages[name]
 		if sr == nil {
 			t.Fatalf("missing stage record %q", name)
 		}
+		if name == "extract" {
+			if sr.Status != manifest.StatusSkipped || sr.Error == nil || sr.Error.Message != "notarius_disabled" {
+				t.Fatalf("extract stage = %#v, want disabled skip", sr)
+			}
+			continue
+		}
 		if sr.Status != manifest.StatusSucceeded {
 			t.Fatalf("stage %q status = %q, want %q", name, sr.Status, manifest.StatusSucceeded)
 		}
@@ -497,6 +629,91 @@ func TestExecuteStagesSkipSucceededWhenNotForced(t *testing.T) {
 	}
 }
 
+func TestExecuteStagesUsesOptionalResumeValidation(t *testing.T) {
+	for _, test := range []struct {
+		name        string
+		validation  stage.ResumeValidation
+		wantRuns    int
+		wantSkipped int
+	}{
+		{name: "resumable", validation: stage.Resumable(), wantSkipped: 1},
+		{name: "rerun", validation: stage.NonResumable("durable output changed"), wantRuns: 1},
+	} {
+		t.Run(test.name, func(t *testing.T) {
+			cfg := testConfig(t)
+			store := &manifest.LocalStore{}
+			seed := manifest.New(cfg.Session.SessionID, time.Now().UTC())
+			seed.MarkStageSucceeded("checked", time.Now().UTC(), nil)
+			if err := store.Save(context.Background(), manifestPathFor(cfg), seed); err != nil {
+				t.Fatalf("Save() error = %v", err)
+			}
+			runs := 0
+			candidate := resumeCheckingStage{name: "checked", validation: test.validation, runs: &runs}
+			summary, err := executeStages(context.Background(), cfg, []stage.Stage{candidate}, RunOptions{})
+			if err != nil {
+				t.Fatalf("executeStages() error = %v", err)
+			}
+			if runs != test.wantRuns || len(summary.Skipped) != test.wantSkipped {
+				t.Fatalf("runs = %d summary = %#v", runs, summary)
+			}
+		})
+	}
+}
+
+func TestExecuteStagesNonResumableResultRerunsSucceededDownstream(t *testing.T) {
+	cfg := testConfig(t)
+	store := &manifest.LocalStore{}
+	seed := manifest.New(cfg.Session.SessionID, time.Now().UTC())
+	seed.MarkStageSucceeded("extract", time.Now().UTC(), nil)
+	seed.MarkStageSucceeded("render", time.Now().UTC(), nil)
+	if err := store.Save(context.Background(), manifestPathFor(cfg), seed); err != nil {
+		t.Fatalf("Save() error = %v", err)
+	}
+	extractRuns, renderRuns := 0, 0
+	stages := []stage.Stage{
+		resumeCheckingStage{name: "extract", validation: stage.NonResumable("checksum changed"), runs: &extractRuns},
+		countingStage{name: "render", runs: &renderRuns},
+	}
+	summary, err := executeStages(context.Background(), cfg, stages, RunOptions{})
+	if err != nil {
+		t.Fatalf("executeStages() error = %v", err)
+	}
+	if extractRuns != 1 || renderRuns != 1 || len(summary.Executed) != 2 || len(summary.Skipped) != 0 {
+		t.Fatalf("extract runs=%d render runs=%d summary=%#v", extractRuns, renderRuns, summary)
+	}
+}
+
+func TestExecuteStagesResumeValidationErrorPreservesSucceededRecord(t *testing.T) {
+	cfg := testConfig(t)
+	store := &manifest.LocalStore{}
+	seed := manifest.New(cfg.Session.SessionID, time.Now().UTC())
+	seed.MarkStageSucceeded("checked", time.Now().UTC(), []manifest.ArtifactRecord{{Kind: "kept", LocalPath: "kept.json"}})
+	seed.Stages["checked"].Metadata = map[string]any{"kept": true}
+	if err := store.Save(context.Background(), manifestPathFor(cfg), seed); err != nil {
+		t.Fatalf("Save() error = %v", err)
+	}
+	before, err := json.Marshal(seed.Stages["checked"])
+	if err != nil {
+		t.Fatalf("Marshal(before) error = %v", err)
+	}
+	runs := 0
+	candidate := resumeCheckingStage{name: "checked", validateErr: errors.New("inspection unavailable"), runs: &runs}
+	if _, err := executeStages(context.Background(), cfg, []stage.Stage{candidate}, RunOptions{}); err == nil || !strings.Contains(err.Error(), "inspection unavailable") {
+		t.Fatalf("executeStages() error = %v", err)
+	}
+	loaded, err := store.Load(context.Background(), manifestPathFor(cfg))
+	if err != nil {
+		t.Fatalf("Load() error = %v", err)
+	}
+	after, err := json.Marshal(loaded.Stages["checked"])
+	if err != nil {
+		t.Fatalf("Marshal(after) error = %v", err)
+	}
+	if string(after) != string(before) || runs != 0 {
+		t.Fatalf("succeeded record changed: before=%s after=%s runs=%d", before, after, runs)
+	}
+}
+
 func TestExecuteStagesForceRerunsSucceeded(t *testing.T) {
 	cfg := testConfig(t)
 	manifestPath := manifestPathFor(cfg)
@@ -525,13 +742,48 @@ func TestExecuteStagesForceRerunsSucceeded(t *testing.T) {
 	}
 }
 
+func TestExecuteStagesSuccessfulReplacementDoesNotInheritResultDetails(t *testing.T) {
+	cfg := testConfig(t)
+	manifestPath := manifestPathFor(cfg)
+	store := &manifest.LocalStore{}
+
+	existing := manifest.New(cfg.Session.SessionID, time.Date(2026, 5, 3, 1, 0, 0, 0, time.UTC))
+	existing.MarkStageSucceeded("transcribe", time.Date(2026, 5, 3, 1, 1, 0, 0, time.UTC), []manifest.ArtifactRecord{{
+		Kind: "transcript_raw", LocalPath: "transcripts/old.json",
+	}})
+	existingStage := existing.Stages["transcribe"]
+	existingStage.Logs = []string{"logs/old.log"}
+	existingStage.GeneratedConfigs = []string{"generated/old.yaml"}
+	existingStage.Metadata = map[string]any{"old_result": true}
+	if err := store.Save(context.Background(), manifestPath, existing); err != nil {
+		t.Fatalf("Save manifest error = %v", err)
+	}
+
+	runs := 0
+	replacement := resultStage{name: "transcribe", result: &stage.StageResult{}, runs: &runs}
+	if _, err := executeStages(context.Background(), cfg, []stage.Stage{replacement}, RunOptions{Force: true}); err != nil {
+		t.Fatalf("executeStages() error = %v", err)
+	}
+	loaded, err := store.Load(context.Background(), manifestPath)
+	if err != nil {
+		t.Fatalf("Load manifest error = %v", err)
+	}
+	record := loaded.Stages["transcribe"]
+	if runs != 1 || record == nil || record.Status != manifest.StatusSucceeded {
+		t.Fatalf("runs = %d, record = %#v, want one successful replacement", runs, record)
+	}
+	if len(record.Outputs) != 0 || len(record.Logs) != 0 || len(record.GeneratedConfigs) != 0 || len(record.Metadata) != 0 {
+		t.Fatalf("replacement inherited result details: %#v", record)
+	}
+}
+
 func TestExecuteStagesForceSuccessInvalidatesDownstreamSucceededStages(t *testing.T) {
 	cfg := testConfig(t)
 	manifestPath := manifestPathFor(cfg)
 	store := &manifest.LocalStore{}
 
 	existing := manifest.New(cfg.Session.SessionID, time.Date(2026, 5, 3, 1, 0, 0, 0, time.UTC))
-	for _, stageName := range []string{"prepare", "transcribe", "merge", "polish", "normalize", "trim", "render", "publish", "notify"} {
+	for _, stageName := range []string{"prepare", "transcribe", "merge", "polish", "normalize", "trim", "extract", "render", "publish", "notify"} {
 		existing.MarkStageSucceeded(stageName, time.Date(2026, 5, 3, 1, 1, 0, 0, time.UTC), nil)
 	}
 	existing.MarkStageFailed("analyze", time.Date(2026, 5, 3, 1, 1, 0, 0, time.UTC), "previous analyze failure")
@@ -562,7 +814,7 @@ func TestExecuteStagesForceSuccessInvalidatesDownstreamSucceededStages(t *testin
 	if loaded.Stages["polish"] == nil || loaded.Stages["polish"].Status != manifest.StatusSucceeded {
 		t.Fatalf("polish status = %#v, want succeeded", loaded.Stages["polish"])
 	}
-	for _, stageName := range []string{"normalize", "trim", "render", "publish", "notify"} {
+	for _, stageName := range []string{"normalize", "trim", "extract", "render", "publish", "notify"} {
 		if loaded.Stages[stageName] == nil || loaded.Stages[stageName].Status != manifest.StatusStale {
 			t.Fatalf("%s status = %#v, want stale", stageName, loaded.Stages[stageName])
 		}
@@ -738,6 +990,126 @@ func TestExecuteStagesRunManifestRecordsSkippedStage(t *testing.T) {
 	}
 }
 
+func TestExecuteStagesPersistsSelfSkipAndContinues(t *testing.T) {
+	cfg := testConfig(t)
+	store := &manifest.LocalStore{}
+	manifestPath := manifestPathFor(cfg)
+	seed := manifest.New(cfg.Session.SessionID, time.Date(2026, 5, 3, 1, 0, 0, 0, time.UTC))
+	seed.MarkStageSucceeded("optional", time.Date(2026, 5, 3, 1, 1, 0, 0, time.UTC), []manifest.ArtifactRecord{{
+		Kind:      "old_output",
+		SourceID:  "narratio.example.old",
+		LocalPath: "artifacts/old.json",
+	}})
+	seed.Stages["optional"].Logs = []string{"old.log"}
+	seed.Stages["optional"].GeneratedConfigs = []string{"old.yml"}
+	seed.Stages["optional"].Metadata = map[string]any{"old": true}
+	if err := os.MkdirAll(filepath.Dir(manifestPath), 0o755); err != nil {
+		t.Fatalf("MkdirAll() error = %v", err)
+	}
+	if err := store.Save(context.Background(), manifestPath, seed); err != nil {
+		t.Fatalf("Save() seed manifest error = %v", err)
+	}
+
+	order := []string{}
+	optionalRuns := 0
+	stages := []stage.Stage{
+		resultStage{
+			name:  "optional",
+			runs:  &optionalRuns,
+			order: &order,
+			result: &stage.StageResult{
+				Disposition:      stage.StageDispositionSkipped,
+				SkipReason:       "integration_disabled",
+				Logs:             []string{"runs/current/optional.log"},
+				GeneratedConfigs: []string{"runs/current/optional.yml"},
+				Metadata:         map[string]any{"enabled": false},
+			},
+		},
+		resultStage{name: "later", order: &order, result: &stage.StageResult{}},
+	}
+	summary, err := executeStages(context.Background(), cfg, stages, RunOptions{Force: true})
+	if err != nil {
+		t.Fatalf("executeStages() error = %v", err)
+	}
+	if strings.Join(order, ",") != "optional,later" {
+		t.Fatalf("execution order = %v, want optional then later", order)
+	}
+	if len(summary.Executed) != 2 || len(summary.Skipped) != 1 || summary.Skipped[0] != "optional" {
+		t.Fatalf("summary = %#v, want optional executed and self-skipped before later", summary)
+	}
+
+	sessionManifest, err := store.Load(context.Background(), summary.ManifestPath)
+	if err != nil {
+		t.Fatalf("Load() session manifest error = %v", err)
+	}
+	selfSkipped := sessionManifest.Stages["optional"]
+	if selfSkipped == nil || selfSkipped.Status != manifest.StatusSkipped {
+		t.Fatalf("optional stage = %#v, want skipped", selfSkipped)
+	}
+	if len(selfSkipped.Outputs) != 0 {
+		t.Fatalf("optional outputs = %#v, want old outputs cleared", selfSkipped.Outputs)
+	}
+	if selfSkipped.Error == nil || selfSkipped.Error.Message != "integration_disabled" {
+		t.Fatalf("optional skip reason = %#v, want integration_disabled", selfSkipped.Error)
+	}
+	if len(selfSkipped.Logs) != 1 || selfSkipped.Logs[0] != "runs/current/optional.log" ||
+		len(selfSkipped.GeneratedConfigs) != 1 || selfSkipped.GeneratedConfigs[0] != "runs/current/optional.yml" ||
+		selfSkipped.Metadata["enabled"] != false || selfSkipped.Metadata["old"] != nil {
+		t.Fatalf("optional result details = %#v, want current bounded diagnostics and metadata", selfSkipped)
+	}
+	if later := sessionManifest.Stages["later"]; later == nil || later.Status != manifest.StatusSucceeded {
+		t.Fatalf("later stage = %#v, want succeeded", later)
+	}
+
+	runManifest, err := store.LoadRun(context.Background(), summary.RunManifestPath)
+	if err != nil {
+		t.Fatalf("LoadRun() error = %v", err)
+	}
+	runStage := runManifest.Stages["optional"]
+	if runStage == nil || runStage.Action != manifest.RunStageActionRun || runStage.Status != manifest.StatusSkipped {
+		t.Fatalf("run optional stage = %#v, want run action with skipped status", runStage)
+	}
+	if len(runStage.Logs) != 1 || runStage.Metadata["enabled"] != false {
+		t.Fatalf("run optional stage details = %#v, want result diagnostics and metadata", runStage)
+	}
+
+	_, err = executeStages(context.Background(), cfg, []stage.Stage{stages[0]}, RunOptions{})
+	if err != nil {
+		t.Fatalf("second executeStages() error = %v", err)
+	}
+	if optionalRuns != 2 {
+		t.Fatalf("optional runs = %d, want self-skipped stage reconsidered", optionalRuns)
+	}
+}
+
+func TestExecuteStagesRejectsSkippedResultWithOutputs(t *testing.T) {
+	cfg := testConfig(t)
+	invalid := resultStage{name: "optional", result: &stage.StageResult{
+		Disposition: stage.StageDispositionSkipped,
+		SkipReason:  "integration_disabled",
+		Outputs:     []artifacts.Ref{{Kind: "unexpected"}},
+	}}
+
+	summary, err := executeStages(context.Background(), cfg, []stage.Stage{invalid}, RunOptions{})
+	if err == nil {
+		t.Fatal("executeStages() error = nil, want invalid skipped result failure")
+	}
+	if summary != nil {
+		t.Fatalf("summary = %#v, want nil", summary)
+	}
+	if !strings.Contains(err.Error(), "skipped result contains 1 output") {
+		t.Fatalf("error = %q, want skipped-output validation", err)
+	}
+
+	loaded, loadErr := (&manifest.LocalStore{}).Load(context.Background(), manifestPathFor(cfg))
+	if loadErr != nil {
+		t.Fatalf("Load() session manifest error = %v", loadErr)
+	}
+	if got := loaded.Stages["optional"]; got == nil || got.Status != manifest.StatusFailed {
+		t.Fatalf("optional stage = %#v, want failed", got)
+	}
+}
+
 func TestExecuteStagesRunLocalArtifactsAndCanonicalSync(t *testing.T) {
 	cfg := testConfig(t)
 	stages := []stage.Stage{
@@ -986,7 +1358,7 @@ func TestAdapterBackedStageFailureMarksManifestFailed(t *testing.T) {
 				seed.S3Bucket = "my-dnd-archive"
 				seed.S3SessionPrefix = "dnd/campaigns/" + cfg.Session.Campaign + "/sessions/" + cfg.Session.SessionID + "/"
 				seed.S3RunPrefix = seed.S3SessionPrefix + "runs/" + runID + "/"
-				for _, name := range []string{"prepare", "transcribe", "merge", "polish", "normalize", "trim", "render", "analyze"} {
+				for _, name := range []string{"prepare", "transcribe", "merge", "polish", "normalize", "trim", "extract", "render", "analyze"} {
 					seed.MarkStageSucceeded(name, time.Now().UTC(), nil)
 				}
 				if err := tc.env.ManifestStore.Save(context.Background(), manifestPathFor(cfg), seed); err != nil {

internal/app/session_oriented_cli_test.go

@@ -346,7 +346,7 @@ func TestExecuteSessionLocksMutationAcceptsPositionalSessionID(t *testing.T) {
 	if code != 0 {
 		t.Fatalf("locks remove exit code = %d, want 0; stderr=%q", code, stderr.String())
 	}
-	store, err := config.LoadPublishLockStoreBytes("locks.yml", fake.Objects[key].Data, nil)
+	store, err := config.LoadPublishLockStoreBytes("locks.yml", fake.Objects[key].Data, nil, nil)
 	if err != nil {
 		t.Fatalf("LoadPublishLockStoreBytes() error = %v", err)
 	}

internal/artifactmodel/metadata.go

@@ -0,0 +1,17 @@
+package artifactmodel
+
+// ContractMetadata identifies the data contract implemented by an artifact.
+type ContractMetadata struct {
+	MediaType     string `json:"media_type"`
+	SchemaID      string `json:"schema_id"`
+	SchemaVersion string `json:"schema_version"`
+	ModuleKey     string `json:"module_key,omitempty"`
+}
+
+// ExternalProvenance identifies an artifact produced by an external system.
+type ExternalProvenance struct {
+	System     string `json:"system"`
+	RunID      string `json:"run_id"`
+	PipelineID string `json:"pipeline_id"`
+	ArtifactID string `json:"artifact_id"`
+}

internal/artifactmodel/metadata_test.go

@@ -0,0 +1,56 @@
+package artifactmodel
+
+import (
+	"encoding/json"
+	"strings"
+	"testing"
+)
+
+func TestArtifactMetadataJSON(t *testing.T) {
+	type envelope struct {
+		Contract           *ContractMetadata   `json:"contract,omitempty"`
+		ExternalProvenance *ExternalProvenance `json:"external_provenance,omitempty"`
+	}
+
+	complete, err := json.Marshal(envelope{
+		Contract: &ContractMetadata{
+			MediaType:     "application/json",
+			SchemaID:      "notarius.dnd.npc_registry",
+			SchemaVersion: "v1",
+			ModuleKey:     "dnd/npc-registry",
+		},
+		ExternalProvenance: &ExternalProvenance{
+			System:     "notarius",
+			RunID:      "run-123",
+			PipelineID: "dnd-session",
+			ArtifactID: "npc-registry",
+		},
+	})
+	if err != nil {
+		t.Fatalf("Marshal() complete metadata error = %v", err)
+	}
+	wantComplete := `{"contract":{"media_type":"application/json","schema_id":"notarius.dnd.npc_registry","schema_version":"v1","module_key":"dnd/npc-registry"},"external_provenance":{"system":"notarius","run_id":"run-123","pipeline_id":"dnd-session","artifact_id":"npc-registry"}}`
+	if string(complete) != wantComplete {
+		t.Fatalf("complete metadata JSON = %s, want %s", complete, wantComplete)
+	}
+
+	omitted, err := json.Marshal(envelope{})
+	if err != nil {
+		t.Fatalf("Marshal() omitted metadata error = %v", err)
+	}
+	if string(omitted) != `{}` {
+		t.Fatalf("omitted metadata JSON = %s, want {}", omitted)
+	}
+
+	withoutModule, err := json.Marshal(envelope{Contract: &ContractMetadata{
+		MediaType:     "application/json",
+		SchemaID:      "notarius.dnd.npc_registry",
+		SchemaVersion: "v1",
+	}})
+	if err != nil {
+		t.Fatalf("Marshal() contract without module key error = %v", err)
+	}
+	if strings.Contains(string(withoutModule), "module_key") {
+		t.Fatalf("contract JSON unexpectedly contains omitted module_key: %s", withoutModule)
+	}
+}

internal/artifactpolicy/policy.go

@@ -18,11 +18,14 @@ const (
 	SourceInputGlossary = "narratio.input.glossary"
 
 	configuredSourcePrefix      = "narratio.artifact."
+	extractionSourcePrefix      = "narratio.extraction."
 	previousConfiguredSrcPrefix = "narratio.previous_session.artifact."
 )
 
 var configuredSourceRE = regexp.MustCompile(`^narratio\.artifact\.([a-z][a-z0-9_]*)$`)
+var extractionSourceRE = regexp.MustCompile(`^narratio\.extraction\.([a-z][a-z0-9_]*)$`)
 var previousSourceRE = regexp.MustCompile(`^narratio\.previous_session\.artifact\.([a-z][a-z0-9_]*)$`)
+var configuredKeyRE = regexp.MustCompile(`^[a-z][a-z0-9_]*$`)
 
 var (
 	ErrUnsupportedScriptoriumInputSource = errors.New("unsupported scriptorium input source")
@@ -34,6 +37,7 @@ type SourceKind string
 const (
 	SourceKindBuiltIn            SourceKind = "built_in"
 	SourceKindConfiguredArtifact SourceKind = "configured_artifact"
+	SourceKindExtraction         SourceKind = "extraction"
 	SourceKindPreviousArtifact   SourceKind = "previous_session_configured_artifact"
 	SourceKindStableInput        SourceKind = "stable_input"
 )
@@ -67,11 +71,30 @@ func (e *UnknownConfiguredArtifactError) Error() string {
 	return fmt.Sprintf("references unknown artifact %q", e.ConfiguredKey)
 }
 
+// UnknownExtractionArtifactError reports a source that references an undefined extraction key.
+type UnknownExtractionArtifactError struct {
+	ConfiguredKey string
+}
+
+func (e *UnknownExtractionArtifactError) Error() string {
+	return fmt.Sprintf("references unknown extraction output %q", e.ConfiguredKey)
+}
+
+// IsConfiguredKey reports whether a key follows the configured-artifact key grammar.
+func IsConfiguredKey(key string) bool {
+	return configuredKeyRE.MatchString(strings.TrimSpace(key))
+}
+
 // ConfiguredSourceID converts a configured artifact key into source id form.
 func ConfiguredSourceID(key string) string {
 	return configuredSourcePrefix + strings.TrimSpace(key)
 }
 
+// ExtractionSourceID converts an extraction output key into source id form.
+func ExtractionSourceID(key string) string {
+	return extractionSourcePrefix + strings.TrimSpace(key)
+}
+
 // PreviousSessionSourceID converts a configured artifact key into previous-session source id form.
 func PreviousSessionSourceID(key string) string {
 	return previousConfiguredSrcPrefix + strings.TrimSpace(key)
@@ -86,6 +109,15 @@ func ParseConfiguredSource(source string) (string, bool) {
 	return matches[1], true
 }
 
+// ParseExtractionSource extracts configured key from narratio.extraction.<key>.
+func ParseExtractionSource(source string) (string, bool) {
+	matches := extractionSourceRE.FindStringSubmatch(strings.TrimSpace(source))
+	if len(matches) != 2 {
+		return "", false
+	}
+	return matches[1], true
+}
+
 // ParsePreviousSessionSource extracts configured key from narratio.previous_session.artifact.<key>.
 func ParsePreviousSessionSource(source string) (string, bool) {
 	matches := previousSourceRE.FindStringSubmatch(strings.TrimSpace(source))
@@ -110,6 +142,9 @@ func ClassifySource(source string) (Source, error) {
 	if key, ok := ParseConfiguredSource(trimmed); ok {
 		return Source{ID: trimmed, Kind: SourceKindConfiguredArtifact, ConfiguredKey: key}, nil
 	}
+	if key, ok := ParseExtractionSource(trimmed); ok {
+		return Source{ID: trimmed, Kind: SourceKindExtraction, ConfiguredKey: key}, nil
+	}
 	if key, ok := ParsePreviousSessionSource(trimmed); ok {
 		return Source{ID: trimmed, Kind: SourceKindPreviousArtifact, ConfiguredKey: key}, nil
 	}
@@ -186,24 +221,48 @@ func PreviousSessionSourceDescriptorForConfiguredKey(configuredKey string) (Prev
 func ValidateInputConfiguredReference(
 	descriptor ScriptoriumInputSourceDescriptor,
 	configured map[string]struct{},
+) error {
+	return ValidateInputReference(descriptor, configured, nil)
+}
+
+// ValidateInputReference checks that configured and extraction sources are declared
+// by the effective pipeline configuration.
+func ValidateInputReference(
+	descriptor ScriptoriumInputSourceDescriptor,
+	configured map[string]struct{},
+	extractions map[string]struct{},
 ) error {
 	switch descriptor.Source.Kind {
 	case SourceKindConfiguredArtifact, SourceKindPreviousArtifact:
 		if _, ok := configured[descriptor.Source.ConfiguredKey]; !ok {
 			return &UnknownConfiguredArtifactError{ConfiguredKey: descriptor.Source.ConfiguredKey}
 		}
+	case SourceKindExtraction:
+		if _, ok := extractions[descriptor.Source.ConfiguredKey]; !ok {
+			return &UnknownExtractionArtifactError{ConfiguredKey: descriptor.Source.ConfiguredKey}
+		}
 	}
 	return nil
 }
 
 // ValidatePublishSource validates that a source is publish-compatible and references a known configured artifact.
 func ValidatePublishSource(source string, configured map[string]string) (Source, error) {
+	return ValidatePublishSourceWithExtractions(source, configured, nil)
+}
+
+// ValidatePublishSourceWithExtractions validates publish sources against the
+// configured Scriptorium artifacts and extraction outputs.
+func ValidatePublishSourceWithExtractions(
+	source string,
+	configured map[string]string,
+	extractions map[string]struct{},
+) (Source, error) {
 	classified, err := ClassifySource(source)
 	if err != nil {
-		return Source{}, fmt.Errorf("must be a built-in source id or narratio.artifact.<name>")
+		return Source{}, fmt.Errorf("must be a built-in source id, narratio.artifact.<name>, or configured narratio.extraction.<name>")
 	}
 	if classified.Kind == SourceKindPreviousArtifact {
-		return Source{}, fmt.Errorf("must be a built-in source id or narratio.artifact.<name>")
+		return Source{}, fmt.Errorf("must be a built-in source id, narratio.artifact.<name>, or configured narratio.extraction.<name>")
 	}
 	if classified.Kind == SourceKindConfiguredArtifact {
 		if configured == nil {
@@ -213,6 +272,11 @@ func ValidatePublishSource(source string, configured map[string]string) (Source,
 			return Source{}, fmt.Errorf("configured artifact %q is not defined in pipeline.scriptorium.artifacts", classified.ConfiguredKey)
 		}
 	}
+	if classified.Kind == SourceKindExtraction {
+		if _, ok := extractions[classified.ConfiguredKey]; !ok {
+			return Source{}, fmt.Errorf("extraction output %q is not defined in pipeline.notarius.outputs", classified.ConfiguredKey)
+		}
+	}
 	return classified, nil
 }
 
@@ -247,7 +311,17 @@ func DeriveDefaultPublishedDestination(source Source, configured map[string]stri
 // ResolvePublishedDestination validates and normalizes an explicit destination,
 // or derives one when omitted.
 func ResolvePublishedDestination(sourceID, explicitDest string, configured map[string]string) (string, error) {
-	source, err := ValidatePublishSource(sourceID, configured)
+	return ResolvePublishedDestinationWithExtractions(sourceID, explicitDest, configured, nil)
+}
+
+// ResolvePublishedDestinationWithExtractions validates and normalizes a destination
+// while accepting extraction sources declared by the effective Notarius configuration.
+func ResolvePublishedDestinationWithExtractions(
+	sourceID, explicitDest string,
+	configured map[string]string,
+	extractions map[string]struct{},
+) (string, error) {
+	source, err := ValidatePublishSourceWithExtractions(sourceID, configured, extractions)
 	if err != nil {
 		return "", err
 	}

internal/artifactpolicy/policy_test.go

@@ -17,6 +17,7 @@ func TestClassifySource(t *testing.T) {
 		{name: "built in transcript", source: "narratio.transcript.final_trimmed", wantKind: SourceKindBuiltIn},
 		{name: "built in bounds", source: "narratio.bounds.session", wantKind: SourceKindBuiltIn},
 		{name: "configured artifact", source: "narratio.artifact.session_recap", wantKind: SourceKindConfiguredArtifact, wantKey: "session_recap"},
+		{name: "extraction", source: "narratio.extraction.npc_registry", wantKind: SourceKindExtraction, wantKey: "npc_registry"},
 		{name: "previous session configured", source: "narratio.previous_session.artifact.session_recap", wantKind: SourceKindPreviousArtifact, wantKey: "session_recap"},
 		{name: "unsupported", source: "narratio.unknown", wantErrLike: "unsupported artifact source"},
 	}
@@ -56,6 +57,60 @@ func TestValidatePublishSource(t *testing.T) {
 	}
 }
 
+func TestExtractionSourcePolicy(t *testing.T) {
+	if got := ExtractionSourceID(" npc_registry "); got != "narratio.extraction.npc_registry" {
+		t.Fatalf("ExtractionSourceID() = %q, want narratio.extraction.npc_registry", got)
+	}
+	if key, ok := ParseExtractionSource(" narratio.extraction.npc_registry "); !ok || key != "npc_registry" {
+		t.Fatalf("ParseExtractionSource() = %q, %t; want npc_registry, true", key, ok)
+	}
+	for _, source := range []string{
+		"narratio.extraction.",
+		"narratio.extraction.NPC",
+		"narratio.extraction.npc-registry",
+		"narratio.extraction.npc_registry.extra",
+	} {
+		if _, ok := ParseExtractionSource(source); ok {
+			t.Fatalf("ParseExtractionSource(%q) unexpectedly matched", source)
+		}
+	}
+
+	descriptor, err := DescribeScriptoriumInputSource("narratio.extraction.npc_registry")
+	if err != nil {
+		t.Fatalf("DescribeScriptoriumInputSource(extraction) error = %v", err)
+	}
+	if descriptor.Source.Kind != SourceKindExtraction || descriptor.Source.ConfiguredKey != "npc_registry" {
+		t.Fatalf("extraction descriptor = %#v", descriptor)
+	}
+	declared := map[string]struct{}{"npc_registry": {}}
+	if err := ValidateInputReference(descriptor, nil, declared); err != nil {
+		t.Fatalf("ValidateInputReference(declared extraction) error = %v", err)
+	}
+	if err := ValidateInputReference(descriptor, nil, nil); err == nil {
+		t.Fatal("ValidateInputReference(unknown extraction) error = nil, want error")
+	}
+
+	if _, err := ValidatePublishSourceWithExtractions("narratio.extraction.npc_registry", nil, declared); err != nil {
+		t.Fatalf("ValidatePublishSourceWithExtractions(declared) error = %v", err)
+	}
+	if _, err := ValidatePublishSourceWithExtractions("narratio.extraction.unknown", nil, declared); err == nil {
+		t.Fatal("ValidatePublishSourceWithExtractions(unknown) error = nil, want error")
+	}
+
+	identities := map[string]struct{}{}
+	for _, sourceID := range []string{
+		ExtractionSourceID("npc_registry"),
+		ConfiguredSourceID("npc_registry"),
+		PreviousSessionSourceID("npc_registry"),
+		SourceBoundsSession,
+	} {
+		if _, exists := identities[sourceID]; exists {
+			t.Fatalf("source identity collision at %q", sourceID)
+		}
+		identities[sourceID] = struct{}{}
+	}
+}
+
 func TestResolvePublishedDestination(t *testing.T) {
 	configured := map[string]string{"session_recap": "artifacts/session_recap.md"}
 

internal/artifacts/artifact_resolver.go

@@ -144,6 +144,22 @@ func ConfiguredArtifactName(source string) (string, bool) {
 	return artifactpolicy.ParseConfiguredSource(source)
 }
 
+// ExtractionArtifactSourceID returns narratio.extraction.<name> for a configured key.
+func ExtractionArtifactSourceID(key string) string {
+	return artifactpolicy.ExtractionSourceID(key)
+}
+
+// IsExtractionArtifactSource reports whether source is narratio.extraction.<name>.
+func IsExtractionArtifactSource(source string) bool {
+	_, ok := artifactpolicy.ParseExtractionSource(source)
+	return ok
+}
+
+// ExtractionArtifactName extracts <name> from narratio.extraction.<name>.
+func ExtractionArtifactName(source string) (string, bool) {
+	return artifactpolicy.ParseExtractionSource(source)
+}
+
 // IsPreviousSessionArtifactSource returns true when source is narratio.previous_session.artifact.<name>.
 func IsPreviousSessionArtifactSource(source string) bool {
 	_, ok := artifactpolicy.ParsePreviousSessionSource(source)
@@ -204,17 +220,19 @@ func ResolveSessionArtifact(paths SessionPaths, m *manifest.Manifest, source str
 }
 
 // ResolveSessionArtifactWithCatalog resolves built-in sources using existing rules and resolves
-// configured narratio.artifact.<name> sources through runtime catalog availability.
+// configured artifact and extraction sources through runtime catalog availability.
 func ResolveSessionArtifactWithCatalog(paths SessionPaths, m *manifest.Manifest, source string, catalog *ArtifactCatalog) (ResolvedSessionArtifact, error) {
 	normalized := strings.TrimSpace(source)
 	if IsPreviousSessionArtifactSource(normalized) {
 		return ResolvePreviousSessionArtifactWithCatalog(paths, m, normalized, catalog)
 	}
-	if !IsConfiguredArtifactSource(normalized) {
+	configuredSource := IsConfiguredArtifactSource(normalized)
+	extractionSource := IsExtractionArtifactSource(normalized)
+	if !configuredSource && !extractionSource {
 		return ResolveSessionArtifact(paths, m, normalized)
 	}
 	if catalog == nil {
-		return ResolvedSessionArtifact{}, fmt.Errorf("configured artifact source %q requires runtime artifact catalog", source)
+		return ResolvedSessionArtifact{}, fmt.Errorf("catalog-backed artifact source %q requires runtime artifact catalog", source)
 	}
 	entry, ok := catalog.Lookup(normalized)
 	if !ok {
@@ -223,7 +241,11 @@ func ResolveSessionArtifactWithCatalog(paths SessionPaths, m *manifest.Manifest,
 	if !entry.Available {
 		return ResolvedSessionArtifact{}, &SessionArtifactNotFoundError{ArtifactID: normalized}
 	}
-	if err := validateResolvedContent(entry.Path, contentText); err != nil {
+	contentKind := contentText
+	if extractionSource {
+		contentKind = contentJSON
+	}
+	if err := validateResolvedContent(entry.Path, contentKind); err != nil {
 		return ResolvedSessionArtifact{}, fmt.Errorf("validate %q: %w", normalized, err)
 	}
 	return ResolvedSessionArtifact{
@@ -231,6 +253,7 @@ func ResolveSessionArtifactWithCatalog(paths SessionPaths, m *manifest.Manifest,
 		Path:          filepath.Clean(entry.Path),
 		ProducerStage: entry.ProducerStage,
 		OutputKind:    entry.OutputKind,
+		ProducerRunID: entry.ProducerRunID,
 		Provenance:    entry.Provenance,
 	}, nil
 }

internal/artifacts/artifact_resolver_test.go

@@ -150,6 +150,23 @@ func TestPreviousSessionArtifactSourceHelpers(t *testing.T) {
 	}
 }
 
+func TestExtractionArtifactSourceHelpers(t *testing.T) {
+	if got := ExtractionArtifactSourceID("npc_registry"); got != "narratio.extraction.npc_registry" {
+		t.Fatalf("ExtractionArtifactSourceID() = %q", got)
+	}
+	if !IsExtractionArtifactSource(" narratio.extraction.npc_registry ") {
+		t.Fatal("IsExtractionArtifactSource(valid) = false")
+	}
+	if key, ok := ExtractionArtifactName("narratio.extraction.npc_registry"); !ok || key != "npc_registry" {
+		t.Fatalf("ExtractionArtifactName() = %q, %t", key, ok)
+	}
+	for _, source := range []string{"narratio.extraction.", "narratio.extraction.npc-registry", "narratio.artifact.npc_registry"} {
+		if IsExtractionArtifactSource(source) {
+			t.Fatalf("IsExtractionArtifactSource(%q) = true, want false", source)
+		}
+	}
+}
+
 func TestResolveSessionArtifactPrefersManifestOutput(t *testing.T) {
 	workspace := t.TempDir()
 	paths := buildSessionPaths(workspace, "campaign", "session")

internal/artifacts/catalog.go

@@ -6,11 +6,13 @@ import (
 	"strings"
 
 	"gitea.maximumdirect.net/eric/narratio/internal/artifactpolicy"
+	"gitea.maximumdirect.net/eric/narratio/internal/config"
 )
 
 const (
 	ArtifactProvenanceGeneratedCurrentAnalyzeRun = "generated.current_analyze_run"
 	ArtifactProvenanceDisabledFromDisk           = "filesystem.disabled_artifact_output"
+	ArtifactProvenanceCurrentExtractManifest     = "manifest.current_extract_run"
 )
 
 // ConfiguredArtifactDefinition describes one configured analyze artifact.
@@ -19,10 +21,40 @@ type ConfiguredArtifactDefinition struct {
 	OutputPath string
 }
 
+// ExtractionArtifactDefinition describes one configured Notarius output lane.
+type ExtractionArtifactDefinition struct {
+	LaneID        string
+	PipelineID    string
+	MediaType     string
+	SchemaID      string
+	SchemaVersion string
+	ModuleKey     string
+}
+
+// ExtractionDefinitionsFromConfig converts the effective Notarius output map into catalog definitions.
+func ExtractionDefinitionsFromConfig(cfg *config.NotariusConfig) map[string]ExtractionArtifactDefinition {
+	if cfg == nil || len(cfg.Outputs) == 0 {
+		return nil
+	}
+	definitions := make(map[string]ExtractionArtifactDefinition, len(cfg.Outputs))
+	for key, output := range cfg.Outputs {
+		definitions[key] = ExtractionArtifactDefinition{
+			LaneID:        output.LaneID,
+			PipelineID:    cfg.PipelineID,
+			MediaType:     output.MediaType,
+			SchemaID:      output.SchemaID,
+			SchemaVersion: output.SchemaVersion,
+			ModuleKey:     output.ModuleKey,
+		}
+	}
+	return definitions
+}
+
 // CatalogEntry is one runtime catalog entry resolved by source ID.
 type CatalogEntry struct {
 	SourceID         string
 	ConfiguredKey    string
+	ExtractionKey    string
 	CanonicalRelPath string
 	ProducerStage    string
 	OutputKind       string
@@ -31,12 +63,14 @@ type CatalogEntry struct {
 	Available        bool
 	Path             string
 	Provenance       string
+	ProducerRunID    string
 }
 
-// ArtifactCatalog tracks built-in and configured artifact definitions and runtime state.
+// ArtifactCatalog tracks built-in, configured, and extraction artifact definitions and runtime state.
 type ArtifactCatalog struct {
 	entries         map[string]CatalogEntry
 	configuredIndex map[string]string
+	extractionIndex map[string]string
 }
 
 // NewArtifactCatalog returns an empty runtime artifact catalog.
@@ -44,9 +78,41 @@ func NewArtifactCatalog() *ArtifactCatalog {
 	return &ArtifactCatalog{
 		entries:         map[string]CatalogEntry{},
 		configuredIndex: map[string]string{},
+		extractionIndex: map[string]string{},
 	}
 }
 
+// RegisterExtractionArtifacts registers the configured Notarius output lanes.
+func (c *ArtifactCatalog) RegisterExtractionArtifacts(configured map[string]ExtractionArtifactDefinition) error {
+	keys := make([]string, 0, len(configured))
+	for key := range configured {
+		keys = append(keys, key)
+	}
+	sort.Strings(keys)
+
+	for _, key := range keys {
+		trimmed := strings.TrimSpace(key)
+		if trimmed == "" {
+			return fmt.Errorf("extraction artifact keys must be non-empty")
+		}
+		if _, exists := c.extractionIndex[trimmed]; exists {
+			return fmt.Errorf("duplicate extraction artifact key %q", trimmed)
+		}
+		sourceID := ExtractionArtifactSourceID(trimmed)
+		if err := c.addEntry(CatalogEntry{
+			SourceID:      sourceID,
+			ExtractionKey: trimmed,
+			ProducerStage: "extract",
+			OutputKind:    "notarius_lane",
+			Planned:       true,
+		}); err != nil {
+			return fmt.Errorf("register extraction artifact %q: %w", trimmed, err)
+		}
+		c.extractionIndex[trimmed] = sourceID
+	}
+	return nil
+}
+
 // ConfiguredArtifactSourceID converts a configured artifact key into canonical source ID.
 func ConfiguredArtifactSourceID(key string) string {
 	return artifactpolicy.ConfiguredSourceID(key)
@@ -151,6 +217,15 @@ func (c *ArtifactCatalog) SourceIDForConfiguredKey(key string) (string, bool) {
 	return sourceID, ok
 }
 
+// SourceIDForExtractionKey returns the canonical source ID for one Notarius output key.
+func (c *ArtifactCatalog) SourceIDForExtractionKey(key string) (string, bool) {
+	if c == nil {
+		return "", false
+	}
+	sourceID, ok := c.extractionIndex[strings.TrimSpace(key)]
+	return sourceID, ok
+}
+
 // ListConfigured returns configured entries sorted by configured key.
 func (c *ArtifactCatalog) ListConfigured() []CatalogEntry {
 	if c == nil || len(c.configuredIndex) == 0 {
@@ -169,6 +244,23 @@ func (c *ArtifactCatalog) ListConfigured() []CatalogEntry {
 	return out
 }
 
+// ListExtraction returns extraction entries sorted by configured output key.
+func (c *ArtifactCatalog) ListExtraction() []CatalogEntry {
+	if c == nil || len(c.extractionIndex) == 0 {
+		return nil
+	}
+	keys := make([]string, 0, len(c.extractionIndex))
+	for key := range c.extractionIndex {
+		keys = append(keys, key)
+	}
+	sort.Strings(keys)
+	out := make([]CatalogEntry, 0, len(keys))
+	for _, key := range keys {
+		out = append(out, c.entries[c.extractionIndex[key]])
+	}
+	return out
+}
+
 // MarkAvailableGenerated marks one source as available in current analyze execution.
 func (c *ArtifactCatalog) MarkAvailableGenerated(sourceID, path string) error {
 	return c.markAvailable(sourceID, path, ArtifactProvenanceGeneratedCurrentAnalyzeRun)
@@ -179,6 +271,16 @@ func (c *ArtifactCatalog) MarkAvailableFromDisk(sourceID, path string) error {
 	return c.markAvailable(sourceID, path, ArtifactProvenanceDisabledFromDisk)
 }
 
+func (c *ArtifactCatalog) markAvailableFromExtractManifest(sourceID, path, producerRunID string) error {
+	if err := c.markAvailable(sourceID, path, ArtifactProvenanceCurrentExtractManifest); err != nil {
+		return err
+	}
+	entry := c.entries[strings.TrimSpace(sourceID)]
+	entry.ProducerRunID = strings.TrimSpace(producerRunID)
+	c.entries[entry.SourceID] = entry
+	return nil
+}
+
 func (c *ArtifactCatalog) markAvailable(sourceID, path, provenance string) error {
 	if c == nil {
 		return fmt.Errorf("artifact catalog is nil")

internal/artifacts/extraction_catalog.go

@@ -0,0 +1,180 @@
+package artifacts
+
+import (
+	"encoding/json"
+	"os"
+	"path/filepath"
+	"strings"
+
+	"gitea.maximumdirect.net/eric/narratio/internal/artifactmodel"
+	"gitea.maximumdirect.net/eric/narratio/internal/manifest"
+)
+
+const (
+	extractStageName       = "extract"
+	extractionLaneKind     = "notarius_lane"
+	extractionIndexKind    = "notarius_index"
+	extractionMetadataRun  = "narratio_run_id"
+	extractionMetadataRoot = "bundle_root"
+)
+
+type hydratedExtraction struct {
+	sourceID string
+	path     string
+}
+
+// HydrateExtractionArtifacts marks extraction sources available only when the current
+// manifest contains one complete, internally consistent, succeeded extraction bundle.
+// Invalid, stale, incomplete, or unsafe records leave every extraction source unavailable.
+func (c *ArtifactCatalog) HydrateExtractionArtifacts(
+	paths SessionPaths,
+	m *manifest.Manifest,
+	configured map[string]ExtractionArtifactDefinition,
+) {
+	if c == nil || m == nil || len(configured) == 0 {
+		return
+	}
+	record := m.Stages[extractStageName]
+	if record == nil || record.Name != extractStageName || record.Status != manifest.StatusSucceeded {
+		return
+	}
+	producerRunID := extractionMetadataString(record.Metadata, extractionMetadataRun)
+	if !safeExtractionPathSegment(producerRunID) {
+		return
+	}
+	bundleRoot := filepath.Clean(filepath.Join(paths.ArtifactsDir, "notarius", producerRunID))
+	if !filepath.IsAbs(bundleRoot) || extractionMetadataString(record.Metadata, extractionMetadataRoot) != bundleRoot {
+		return
+	}
+	if !safeExistingExtractionDirectory(paths.Root, bundleRoot) {
+		return
+	}
+	receiptRunID, receiptPipelineID := extractionReceiptIdentity(record.Metadata)
+	if receiptRunID == "" || receiptPipelineID == "" {
+		return
+	}
+
+	expected := make(map[string]ExtractionArtifactDefinition, len(configured))
+	for key, definition := range configured {
+		sourceID, ok := c.SourceIDForExtractionKey(key)
+		if !ok {
+			return
+		}
+		expected[sourceID] = definition
+	}
+
+	seen := make(map[string]struct{}, len(expected))
+	hydrated := make([]hydratedExtraction, 0, len(expected))
+	indexSeen := false
+	for _, output := range record.Outputs {
+		if strings.TrimSpace(output.ProducerRunID) != producerRunID {
+			return
+		}
+		if output.SourceID == "" {
+			if indexSeen || output.Kind != extractionIndexKind || filepath.Clean(output.LocalPath) != filepath.Join(bundleRoot, "index.json") ||
+				!validExtractionPayload(bundleRoot, output.LocalPath, output.Checksum) {
+				return
+			}
+			indexSeen = true
+			continue
+		}
+
+		definition, ok := expected[output.SourceID]
+		if !ok || output.Kind != extractionLaneKind {
+			return
+		}
+		if _, duplicate := seen[output.SourceID]; duplicate {
+			return
+		}
+		if !compatibleCatalogExtractionContract(output.Contract, definition) ||
+			!compatibleCatalogExtractionProvenance(output.ExternalProvenance, receiptRunID, receiptPipelineID, definition) ||
+			!validExtractionPayload(bundleRoot, output.LocalPath, output.Checksum) {
+			return
+		}
+		seen[output.SourceID] = struct{}{}
+		hydrated = append(hydrated, hydratedExtraction{sourceID: output.SourceID, path: output.LocalPath})
+	}
+	if !indexSeen || len(seen) != len(expected) || len(record.Outputs) != len(expected)+1 {
+		return
+	}
+	for _, item := range hydrated {
+		_ = c.markAvailableFromExtractManifest(item.sourceID, item.path, producerRunID)
+	}
+}
+
+func compatibleCatalogExtractionContract(got *artifactmodel.ContractMetadata, want ExtractionArtifactDefinition) bool {
+	return got != nil && got.MediaType == want.MediaType && got.SchemaID == want.SchemaID &&
+		got.SchemaVersion == want.SchemaVersion && (want.ModuleKey == "" || got.ModuleKey == want.ModuleKey)
+}
+
+func compatibleCatalogExtractionProvenance(
+	got *artifactmodel.ExternalProvenance,
+	runID, pipelineID string,
+	want ExtractionArtifactDefinition,
+) bool {
+	return got != nil && got.System == "notarius" && got.RunID == runID && got.PipelineID == pipelineID &&
+		pipelineID == strings.TrimSpace(want.PipelineID) && got.ArtifactID == want.LaneID
+}
+
+func validExtractionPayload(bundleRoot, path, checksum string) bool {
+	if !filepath.IsAbs(path) || !pathWithinExtractionRoot(bundleRoot, path) || strings.TrimSpace(checksum) == "" {
+		return false
+	}
+	info, err := os.Lstat(path)
+	if err != nil || !info.Mode().IsRegular() || info.Mode()&os.ModeSymlink != 0 {
+		return false
+	}
+	if !safeExtractionComponents(bundleRoot, path) {
+		return false
+	}
+	actual, err := SHA256File(path)
+	if err != nil || actual != checksum {
+		return false
+	}
+	body, err := os.ReadFile(path)
+	return err == nil && json.Valid(body)
+}
+
+func safeExistingExtractionDirectory(sessionRoot, bundleRoot string) bool {
+	if !pathWithinExtractionRoot(sessionRoot, bundleRoot) || !safeExtractionComponents(sessionRoot, bundleRoot) {
+		return false
+	}
+	info, err := os.Lstat(bundleRoot)
+	return err == nil && info.IsDir() && info.Mode()&os.ModeSymlink == 0
+}
+
+func safeExtractionComponents(root, target string) bool {
+	relative, err := filepath.Rel(filepath.Clean(root), filepath.Clean(target))
+	if err != nil || relative == "." || relative == ".." || strings.HasPrefix(relative, ".."+string(filepath.Separator)) {
+		return false
+	}
+	current := filepath.Clean(root)
+	for _, part := range strings.Split(relative, string(filepath.Separator)) {
+		current = filepath.Join(current, part)
+		info, err := os.Lstat(current)
+		if err != nil || info.Mode()&os.ModeSymlink != 0 {
+			return false
+		}
+	}
+	return true
+}
+
+func pathWithinExtractionRoot(root, target string) bool {
+	relative, err := filepath.Rel(filepath.Clean(root), filepath.Clean(target))
+	return err == nil && relative != "." && relative != ".." && !strings.HasPrefix(relative, ".."+string(filepath.Separator))
+}
+
+func safeExtractionPathSegment(value string) bool {
+	return value != "" && value != "." && value != ".." && filepath.Base(value) == value &&
+		!strings.ContainsAny(value, `/\\`)
+}
+
+func extractionMetadataString(metadata map[string]any, key string) string {
+	value, _ := metadata[key].(string)
+	return strings.TrimSpace(value)
+}
+
+func extractionReceiptIdentity(metadata map[string]any) (string, string) {
+	receipt, _ := metadata["receipt"].(map[string]any)
+	return extractionMetadataString(receipt, "run_id"), extractionMetadataString(receipt, "pipeline_id")
+}

internal/artifacts/extraction_catalog_test.go

@@ -0,0 +1,222 @@
+package artifacts
+
+import (
+	"errors"
+	"os"
+	"path/filepath"
+	"testing"
+	"time"
+
+	"gitea.maximumdirect.net/eric/narratio/internal/artifactmodel"
+	"gitea.maximumdirect.net/eric/narratio/internal/manifest"
+)
+
+func TestArtifactCatalogRegistersExtractionArtifactsDeterministically(t *testing.T) {
+	catalog := NewArtifactCatalog()
+	if err := catalog.RegisterConfiguredArtifacts(map[string]ConfiguredArtifactDefinition{
+		"summary": {Enabled: true},
+	}, nil); err != nil {
+		t.Fatal(err)
+	}
+	if err := catalog.RegisterExtractionArtifacts(map[string]ExtractionArtifactDefinition{
+		"zeta":    {LaneID: "zeta"},
+		"summary": {LaneID: "summary"},
+		"alpha":   {LaneID: "alpha"},
+	}); err != nil {
+		t.Fatalf("RegisterExtractionArtifacts() error = %v", err)
+	}
+
+	entries := catalog.ListExtraction()
+	if len(entries) != 3 || entries[0].ExtractionKey != "alpha" || entries[1].ExtractionKey != "summary" || entries[2].ExtractionKey != "zeta" {
+		t.Fatalf("ListExtraction() = %#v, want alpha, summary, zeta", entries)
+	}
+	extractionID, ok := catalog.SourceIDForExtractionKey("summary")
+	if !ok || extractionID != "narratio.extraction.summary" {
+		t.Fatalf("SourceIDForExtractionKey(summary) = %q, %v", extractionID, ok)
+	}
+	configuredID, _ := catalog.SourceIDForConfiguredKey("summary")
+	if configuredID == extractionID {
+		t.Fatalf("configured and extraction source families collided at %q", extractionID)
+	}
+	entry, ok := catalog.Lookup(extractionID)
+	if !ok || entry.ProducerStage != "extract" || entry.OutputKind != "notarius_lane" || !entry.Planned {
+		t.Fatalf("Lookup(%q) = %#v, %v", extractionID, entry, ok)
+	}
+}
+
+func TestArtifactCatalogRejectsDuplicateExtractionRegistration(t *testing.T) {
+	catalog := NewArtifactCatalog()
+	definitions := map[string]ExtractionArtifactDefinition{"summary": {LaneID: "summary"}}
+	if err := catalog.RegisterExtractionArtifacts(definitions); err != nil {
+		t.Fatal(err)
+	}
+	if err := catalog.RegisterExtractionArtifacts(definitions); err == nil {
+		t.Fatal("second RegisterExtractionArtifacts() error = nil, want collision error")
+	}
+}
+
+func TestHydrateExtractionArtifactsAcceptsOnlyCompleteCurrentBundle(t *testing.T) {
+	paths, currentManifest, definitions := validExtractionCatalogFixture(t)
+	catalog := registeredExtractionCatalog(t, definitions)
+	catalog.HydrateExtractionArtifacts(paths, currentManifest, definitions)
+
+	entry, ok := catalog.Lookup(ExtractionArtifactSourceID("encounters"))
+	if !ok || !entry.Available {
+		t.Fatalf("hydrated entry = %#v, %v; want available", entry, ok)
+	}
+	if entry.Provenance != ArtifactProvenanceCurrentExtractManifest || entry.ProducerRunID != "extract-run-1" {
+		t.Fatalf("hydrated provenance = %#v", entry)
+	}
+	resolved, err := ResolveSessionArtifactWithCatalog(paths, currentManifest, entry.SourceID, catalog)
+	if err != nil {
+		t.Fatalf("ResolveSessionArtifactWithCatalog() error = %v", err)
+	}
+	if resolved.Path != entry.Path || resolved.ProducerRunID != "extract-run-1" {
+		t.Fatalf("resolved = %#v", resolved)
+	}
+}
+
+func TestHydrateExtractionArtifactsRejectsUntrustedManifestState(t *testing.T) {
+	tests := []struct {
+		name   string
+		mutate func(t *testing.T, paths SessionPaths, m *manifest.Manifest)
+	}{
+		{name: "missing stage", mutate: func(_ *testing.T, _ SessionPaths, m *manifest.Manifest) { delete(m.Stages, "extract") }},
+		{name: "skipped", mutate: setExtractionStatus(manifest.StatusSkipped)},
+		{name: "failed", mutate: setExtractionStatus(manifest.StatusFailed)},
+		{name: "stale", mutate: setExtractionStatus(manifest.StatusStale)},
+		{name: "interrupted", mutate: setExtractionStatus(manifest.StatusInterrupted)},
+		{name: "missing source", mutate: func(_ *testing.T, _ SessionPaths, m *manifest.Manifest) {
+			m.Stages["extract"].Outputs = m.Stages["extract"].Outputs[1:]
+		}},
+		{name: "inconsistent producer identity", mutate: func(_ *testing.T, _ SessionPaths, m *manifest.Manifest) {
+			m.Stages["extract"].Outputs[0].ProducerRunID = "another-run"
+		}},
+		{name: "incompatible contract", mutate: func(_ *testing.T, _ SessionPaths, m *manifest.Manifest) {
+			m.Stages["extract"].Outputs[0].Contract.SchemaVersion = "99"
+		}},
+		{name: "incompatible provenance", mutate: func(_ *testing.T, _ SessionPaths, m *manifest.Manifest) {
+			m.Stages["extract"].Outputs[0].ExternalProvenance.RunID = "another-notarius-run"
+		}},
+		{name: "missing file", mutate: func(t *testing.T, _ SessionPaths, m *manifest.Manifest) {
+			if err := os.Remove(m.Stages["extract"].Outputs[0].LocalPath); err != nil {
+				t.Fatal(err)
+			}
+		}},
+		{name: "tampered checksum", mutate: func(t *testing.T, _ SessionPaths, m *manifest.Manifest) {
+			if err := os.WriteFile(m.Stages["extract"].Outputs[0].LocalPath, []byte(`{"tampered":true}`), 0o644); err != nil {
+				t.Fatal(err)
+			}
+		}},
+		{name: "unsafe path", mutate: func(t *testing.T, paths SessionPaths, m *manifest.Manifest) {
+			outside := filepath.Join(paths.Root, "incidental.json")
+			writeExtractionFixtureFile(t, outside, `{"incidental":true}`)
+			m.Stages["extract"].Outputs[0].LocalPath = outside
+			m.Stages["extract"].Outputs[0].Checksum = extractionFixtureChecksum(t, outside)
+		}},
+	}
+
+	for _, test := range tests {
+		t.Run(test.name, func(t *testing.T) {
+			paths, currentManifest, definitions := validExtractionCatalogFixture(t)
+			test.mutate(t, paths, currentManifest)
+			catalog := registeredExtractionCatalog(t, definitions)
+			catalog.HydrateExtractionArtifacts(paths, currentManifest, definitions)
+			entry, _ := catalog.Lookup(ExtractionArtifactSourceID("encounters"))
+			if entry.Available {
+				t.Fatalf("entry became available from %s manifest", test.name)
+			}
+		})
+	}
+}
+
+func TestResolveExtractionArtifactNeverDiscoversIncidentalBundleFile(t *testing.T) {
+	root := t.TempDir()
+	paths := SessionPaths{Root: root, ArtifactsDir: filepath.Join(root, "artifacts")}
+	incidental := filepath.Join(paths.ArtifactsDir, "notarius", "incidental", "lanes", "encounters.json")
+	writeExtractionFixtureFile(t, incidental, `{"encounters":[]}`)
+	definitions := extractionFixtureDefinitions()
+	catalog := registeredExtractionCatalog(t, definitions)
+
+	_, err := ResolveSessionArtifactWithCatalog(paths, manifest.New("session", fixtureTime), ExtractionArtifactSourceID("encounters"), catalog)
+	if err == nil || !errors.Is(err, ErrSessionArtifactNotFound) {
+		t.Fatalf("ResolveSessionArtifactWithCatalog() error = %v, want not found", err)
+	}
+}
+
+var fixtureTime = mustFixtureTime()
+
+func mustFixtureTime() (value time.Time) {
+	return time.Date(2026, 8, 10, 0, 0, 0, 0, time.UTC)
+}
+
+func setExtractionStatus(status manifest.StageStatus) func(*testing.T, SessionPaths, *manifest.Manifest) {
+	return func(_ *testing.T, _ SessionPaths, m *manifest.Manifest) { m.Stages["extract"].Status = status }
+}
+
+func extractionFixtureDefinitions() map[string]ExtractionArtifactDefinition {
+	return map[string]ExtractionArtifactDefinition{
+		"encounters": {
+			LaneID: "encounters", PipelineID: "campaign.extract", MediaType: "application/json",
+			SchemaID: "encounters", SchemaVersion: "1", ModuleKey: "encounters",
+		},
+	}
+}
+
+func registeredExtractionCatalog(t *testing.T, definitions map[string]ExtractionArtifactDefinition) *ArtifactCatalog {
+	t.Helper()
+	catalog := NewArtifactCatalog()
+	if err := catalog.RegisterExtractionArtifacts(definitions); err != nil {
+		t.Fatal(err)
+	}
+	return catalog
+}
+
+func validExtractionCatalogFixture(t *testing.T) (SessionPaths, *manifest.Manifest, map[string]ExtractionArtifactDefinition) {
+	t.Helper()
+	root := t.TempDir()
+	paths := SessionPaths{Root: root, ArtifactsDir: filepath.Join(root, "artifacts")}
+	bundleRoot := filepath.Join(paths.ArtifactsDir, "notarius", "extract-run-1")
+	lanePath := filepath.Join(bundleRoot, "lanes", "encounters.json")
+	indexPath := filepath.Join(bundleRoot, "index.json")
+	writeExtractionFixtureFile(t, lanePath, `{"encounters":[]}`)
+	writeExtractionFixtureFile(t, indexPath, `{"lanes":[]}`)
+	definitions := extractionFixtureDefinitions()
+	m := manifest.New("session", fixtureTime)
+	m.Stages["extract"] = &manifest.StageRecord{
+		Name: "extract", Status: manifest.StatusSucceeded,
+		Metadata: map[string]any{
+			"narratio_run_id": "extract-run-1", "bundle_root": bundleRoot,
+			"receipt": map[string]any{"run_id": "notarius-run-1", "pipeline_id": "campaign.extract"},
+		},
+		Outputs: []manifest.ArtifactRecord{
+			{
+				Kind: "notarius_lane", SourceID: ExtractionArtifactSourceID("encounters"), LocalPath: lanePath,
+				ProducerRunID: "extract-run-1", Checksum: extractionFixtureChecksum(t, lanePath),
+				Contract:           &artifactmodel.ContractMetadata{MediaType: "application/json", SchemaID: "encounters", SchemaVersion: "1", ModuleKey: "encounters"},
+				ExternalProvenance: &artifactmodel.ExternalProvenance{System: "notarius", RunID: "notarius-run-1", PipelineID: "campaign.extract", ArtifactID: "encounters"},
+			},
+			{Kind: "notarius_index", LocalPath: indexPath, ProducerRunID: "extract-run-1", Checksum: extractionFixtureChecksum(t, indexPath)},
+		},
+	}
+	return paths, m, definitions
+}
+
+func writeExtractionFixtureFile(t *testing.T, path, body string) {
+	t.Helper()
+	if err := os.MkdirAll(filepath.Dir(path), 0o755); err != nil {
+		t.Fatal(err)
+	}
+	if err := os.WriteFile(path, []byte(body), 0o644); err != nil {
+		t.Fatal(err)
+	}
+}
+
+func extractionFixtureChecksum(t *testing.T, path string) string {
+	t.Helper()
+	checksum, err := SHA256File(path)
+	if err != nil {
+		t.Fatal(err)
+	}
+	return checksum
+}

internal/artifacts/paths.go

@@ -86,6 +86,36 @@ func SessionRunStageDirForCampaign(rootDir, campaign, sessionID, runID, stageNam
 	return filepath.Join(SessionRunRootForCampaign(rootDir, campaign, sessionID, runID), stageName)
 }
 
+// SessionRunExtractDirForCampaign returns the invocation-local extraction directory.
+func SessionRunExtractDirForCampaign(rootDir, campaign, sessionID, runID string) string {
+	return SessionRunStageDirForCampaign(rootDir, campaign, sessionID, runID, "extract")
+}
+
+// SessionRunNotariusReceiptPathForCampaign returns the invocation-local receipt path.
+func SessionRunNotariusReceiptPathForCampaign(rootDir, campaign, sessionID, runID string) string {
+	return filepath.Join(SessionRunExtractDirForCampaign(rootDir, campaign, sessionID, runID), "notarius.receipt.json")
+}
+
+// SessionRunNotariusLogPathForCampaign returns the invocation-local stderr log path.
+func SessionRunNotariusLogPathForCampaign(rootDir, campaign, sessionID, runID string) string {
+	return filepath.Join(SessionRunExtractDirForCampaign(rootDir, campaign, sessionID, runID), "notarius.stderr.log")
+}
+
+// SessionRunNotariusOutputRootForCampaign returns the invocation-local Notarius output root.
+func SessionRunNotariusOutputRootForCampaign(rootDir, campaign, sessionID, runID string) string {
+	return filepath.Join(SessionRunExtractDirForCampaign(rootDir, campaign, sessionID, runID), "notarius-output")
+}
+
+// SessionNotariusBundleDirForCampaign returns one immutable durable bundle destination.
+func SessionNotariusBundleDirForCampaign(rootDir, campaign, sessionID, runID string) string {
+	return filepath.Join(
+		SessionWorkDirForCampaign(rootDir, campaign, sessionID),
+		config.PathArtifactsDirSegment,
+		"notarius",
+		runID,
+	)
+}
+
 // SessionSpoolAudioDir returns the campaign/session/run scoped local spool audio path.
 func SessionSpoolAudioDir(spoolRoot, campaign, sessionID, runID string) string {
 	return filepath.Join(spoolRoot, campaign, sessionID, runID, config.PathAudioDirSegment)

internal/artifacts/paths_model_test.go

@@ -49,6 +49,33 @@ func TestSessionRunManifestPathForCampaign(t *testing.T) {
 	}
 }
 
+func TestSessionNotariusPathsForCampaign(t *testing.T) {
+	root := "/tmp/workspace"
+	campaign := "forsaken"
+	sessionID := "2026-04-19"
+	runID := "20260515T031522Z-a1b2c3d4"
+	extractDir := filepath.Join(root, "work", campaign, sessionID, "runs", runID, "extract")
+
+	tests := []struct {
+		name string
+		got  string
+		want string
+	}{
+		{name: "extract directory", got: SessionRunExtractDirForCampaign(root, campaign, sessionID, runID), want: extractDir},
+		{name: "receipt", got: SessionRunNotariusReceiptPathForCampaign(root, campaign, sessionID, runID), want: filepath.Join(extractDir, "notarius.receipt.json")},
+		{name: "stderr", got: SessionRunNotariusLogPathForCampaign(root, campaign, sessionID, runID), want: filepath.Join(extractDir, "notarius.stderr.log")},
+		{name: "output root", got: SessionRunNotariusOutputRootForCampaign(root, campaign, sessionID, runID), want: filepath.Join(extractDir, "notarius-output")},
+		{name: "durable bundle", got: SessionNotariusBundleDirForCampaign(root, campaign, sessionID, runID), want: filepath.Join(root, "work", campaign, sessionID, "artifacts", "notarius", runID)},
+	}
+	for _, test := range tests {
+		t.Run(test.name, func(t *testing.T) {
+			if test.got != test.want {
+				t.Fatalf("path = %q, want %q", test.got, test.want)
+			}
+		})
+	}
+}
+
 func TestSessionPreviousPathsForCampaign(t *testing.T) {
 	root := "/tmp/workspace"
 	previousDir := SessionPreviousDirForCampaign(root, "forsaken", "2026-04-19")

internal/artifacts/store.go

@@ -1,16 +1,23 @@
 package artifacts
 
-import "os"
+import (
+	"os"
+
+	"gitea.maximumdirect.net/eric/narratio/internal/artifactmodel"
+)
 
 // Ref identifies a pipeline artifact and its local/remote coordinates.
 type Ref struct {
-	Kind         string
-	Category     string
-	SessionID    string
-	RelativePath string
-	AbsolutePath string
-	RemoteKey    string
-	Checksum     string
+	Kind               string
+	SourceID           string
+	Category           string
+	SessionID          string
+	RelativePath       string
+	AbsolutePath       string
+	RemoteKey          string
+	Checksum           string
+	Contract           *artifactmodel.ContractMetadata
+	ExternalProvenance *artifactmodel.ExternalProvenance
 }
 
 // Store is the local artifact/workdir abstraction used by orchestration code.

internal/config/config.go

@@ -30,6 +30,7 @@ type PipelineConfig struct {
 	Trim         *TrimConfig        `yaml:"trim"`
 	Render       *RenderConfig      `yaml:"render"`
 	Scriptorium  *ScriptoriumConfig `yaml:"scriptorium"`
+	Notarius     *NotariusConfig    `yaml:"notarius"`
 	Notification NotificationConfig `yaml:"notification"`
 }
 
@@ -252,6 +253,26 @@ type ScriptoriumInputConfig struct {
 	Required bool   `yaml:"required"`
 }
 
+// NotariusConfig configures structured artifact extraction by Notarius.
+type NotariusConfig struct {
+	Enabled          bool                            `yaml:"enabled"`
+	Binary           string                          `yaml:"binary"`
+	ConfigPath       string                          `yaml:"config_path"`
+	PipelineID       string                          `yaml:"pipeline_id"`
+	Timeout          string                          `yaml:"timeout"`
+	WorkingDirectory string                          `yaml:"working_directory"`
+	Outputs          map[string]NotariusOutputConfig `yaml:"outputs"`
+}
+
+// NotariusOutputConfig declares one required extraction lane contract.
+type NotariusOutputConfig struct {
+	LaneID        string `yaml:"lane_id"`
+	MediaType     string `yaml:"media_type"`
+	SchemaID      string `yaml:"schema_id"`
+	SchemaVersion string `yaml:"schema_version"`
+	ModuleKey     string `yaml:"module_key"`
+}
+
 // NotificationConfig configures notification backend settings.
 type NotificationConfig struct {
 	Backend   string `yaml:"backend"`

internal/config/defaults.go

@@ -30,9 +30,11 @@ const (
 	DefaultSeriatimCoalesceGap  = 3.0
 	DefaultSeriatimReport       = true
 
-	DefaultAuditaBinary  = "audita"
-	DefaultAuditaTimeout = "3h"
-	DefaultAuditaReport  = true
+	DefaultAuditaBinary    = "audita"
+	DefaultAuditaTimeout   = "3h"
+	DefaultAuditaReport    = true
+	DefaultNotariusBinary  = "notarius"
+	DefaultNotariusTimeout = "3h"
 
 	DefaultScriptoriumBinary                 = "scriptorium"
 	DefaultScriptoriumTimeout                = "10m"

internal/config/load.go

@@ -19,6 +19,9 @@ func LoadPipeline(path string) (*PipelineConfig, error) {
 		return nil, fmt.Errorf("load pipeline config: %w", err)
 	}
 	applyPipelineDefaults(&cfg)
+	if err := resolveNotariusPaths(&cfg, path); err != nil {
+		return nil, fmt.Errorf("load pipeline config: %w", err)
+	}
 	return &cfg, nil
 }
 
@@ -86,12 +89,17 @@ func LoadSessionBytesWithOptions(label string, data []byte, opts SessionLoadOpti
 
 // LoadPublishLockStoreBytes loads a mutable session lock store with strict
 // field checking and source validation.
-func LoadPublishLockStoreBytes(label string, data []byte, scriptorium *ScriptoriumConfig) (*PublishLockStore, error) {
+func LoadPublishLockStoreBytes(
+	label string,
+	data []byte,
+	scriptorium *ScriptoriumConfig,
+	notarius *NotariusConfig,
+) (*PublishLockStore, error) {
 	var store PublishLockStore
 	if err := decodeStrictYAMLFromReader("publish lock store", label, strings.NewReader(string(data)), &store); err != nil {
 		return nil, fmt.Errorf("load publish lock store: %w", err)
 	}
-	locks, err := ValidatePublishLockRules(store.Locks, scriptorium, "locks")
+	locks, err := ValidatePublishLockRules(store.Locks, scriptorium, notarius, "locks")
 	if err != nil {
 		return nil, fmt.Errorf("load publish lock store: %w", err)
 	}
@@ -359,6 +367,7 @@ func applyPipelineDefaults(cfg *PipelineConfig) {
 	}
 	applyRenderDefaults(&cfg.Render)
 	applyScriptoriumDefaults(cfg.Scriptorium)
+	applyNotariusDefaults(cfg.Notarius)
 }
 
 func applyCampaignsDefaults(cfg *CampaignsConfig) {
@@ -516,6 +525,57 @@ func applyScriptoriumDefaults(cfg *ScriptoriumConfig) {
 	}
 }
 
+func applyNotariusDefaults(cfg *NotariusConfig) {
+	if cfg == nil {
+		return
+	}
+	if cfg.Binary == "" {
+		cfg.Binary = DefaultNotariusBinary
+	}
+	if cfg.Timeout == "" {
+		cfg.Timeout = DefaultNotariusTimeout
+	}
+}
+
+func resolveNotariusPaths(cfg *PipelineConfig, pipelinePath string) error {
+	if cfg == nil || cfg.Notarius == nil || !cfg.Notarius.Enabled {
+		return nil
+	}
+	pipelineAbs, err := filepath.Abs(pipelinePath)
+	if err != nil {
+		return fmt.Errorf("resolve pipeline config path %q: %w", pipelinePath, err)
+	}
+	baseDir := filepath.Dir(pipelineAbs)
+	resolve := func(value string) (string, error) {
+		trimmed := strings.TrimSpace(value)
+		if trimmed == "" {
+			return "", nil
+		}
+		if !filepath.IsAbs(trimmed) {
+			trimmed = filepath.Join(baseDir, trimmed)
+		}
+		return filepath.Abs(trimmed)
+	}
+
+	resolvedConfigPath, err := resolve(cfg.Notarius.ConfigPath)
+	if err != nil {
+		return fmt.Errorf("resolve pipeline.notarius.config_path: %w", err)
+	}
+	cfg.Notarius.ConfigPath = resolvedConfigPath
+	if strings.TrimSpace(cfg.Notarius.WorkingDirectory) == "" {
+		if resolvedConfigPath != "" {
+			cfg.Notarius.WorkingDirectory = filepath.Dir(resolvedConfigPath)
+		}
+		return nil
+	}
+	workingDirectory, err := resolve(cfg.Notarius.WorkingDirectory)
+	if err != nil {
+		return fmt.Errorf("resolve pipeline.notarius.working_directory: %w", err)
+	}
+	cfg.Notarius.WorkingDirectory = workingDirectory
+	return nil
+}
+
 func applyTrimDefaults(cfg *TrimConfig) {
 	if cfg == nil {
 		return

internal/config/load_validate_test.go

@@ -3,6 +3,7 @@ package config
 import (
 	"os"
 	"path/filepath"
+	"reflect"
 	"strings"
 	"testing"
 )
@@ -1049,6 +1050,11 @@ func TestExamplesLoadAndValidate(t *testing.T) {
 			pipelineFile: "pipeline.full.annotated.yml",
 			sessionFile:  "session.local-audio.yml",
 		},
+		{
+			name:         "extraction subset pipeline with local audio session",
+			pipelineFile: "pipeline.extraction-subset.yml",
+			sessionFile:  "session.local-audio.yml",
+		},
 	}
 
 	for _, tt := range tests {
@@ -1068,6 +1074,47 @@ func TestExamplesLoadAndValidate(t *testing.T) {
 	}
 }
 
+func TestMaintainedExtractionExamplesPreservePublishedContracts(t *testing.T) {
+	examplesDir := filepath.Join("..", "..", "examples")
+	full, err := LoadPipeline(filepath.Join(examplesDir, "pipeline.full.annotated.yml"))
+	if err != nil {
+		t.Fatalf("load full example error = %v", err)
+	}
+	want := map[string]NotariusOutputConfig{
+		"item_registry":        {LaneID: "item-registry", MediaType: "application/json", SchemaID: "notarius.dnd.item_registry", SchemaVersion: "v1", ModuleKey: "dnd/item-registry"},
+		"npc_registry":         {LaneID: "npc-registry", MediaType: "application/json", SchemaID: "notarius.dnd.npc_registry", SchemaVersion: "v1", ModuleKey: "dnd/npc-registry"},
+		"location_registry":    {LaneID: "location-registry", MediaType: "application/json", SchemaID: "notarius.dnd.location_registry", SchemaVersion: "v1", ModuleKey: "dnd/location-registry"},
+		"scene_descriptions":   {LaneID: "scene-descriptions", MediaType: "application/json", SchemaID: "notarius.dnd.scene_descriptions", SchemaVersion: "v1", ModuleKey: "dnd/scene-descriptions"},
+		"item_occurrences":     {LaneID: "item-occurrences", MediaType: "application/json", SchemaID: "notarius.dnd.item_occurrences", SchemaVersion: "v1", ModuleKey: "dnd/item-occurrences"},
+		"spells":               {LaneID: "spells", MediaType: "application/json", SchemaID: "notarius.dnd.spells", SchemaVersion: "v1", ModuleKey: "dnd/spells"},
+		"combat_turns":         {LaneID: "combat-turns", MediaType: "application/json", SchemaID: "notarius.dnd.combat_turns", SchemaVersion: "v1", ModuleKey: "dnd/combat-turns"},
+		"npc_occurrences":      {LaneID: "npc-occurrences", MediaType: "application/json", SchemaID: "notarius.dnd.npc_occurrences", SchemaVersion: "v1", ModuleKey: "dnd/npc-occurrences"},
+		"location_occurrences": {LaneID: "location-occurrences", MediaType: "application/json", SchemaID: "notarius.dnd.location_occurrences", SchemaVersion: "v1", ModuleKey: "dnd/location-occurrences"},
+		"enemy_events":         {LaneID: "enemy-events", MediaType: "application/json", SchemaID: "notarius.dnd.enemy_events", SchemaVersion: "v1", ModuleKey: "dnd/enemy-events"},
+	}
+	if full.Notarius == nil || !reflect.DeepEqual(full.Notarius.Outputs, want) {
+		t.Fatalf("full example outputs = %#v, want %#v", full.Notarius, want)
+	}
+
+	subset, err := LoadPipeline(filepath.Join(examplesDir, "pipeline.extraction-subset.yml"))
+	if err != nil {
+		t.Fatalf("load subset example error = %v", err)
+	}
+	brief := subset.Scriptorium.Artifacts["session_brief"]
+	wantSources := map[string]string{
+		"npcs":      "narratio.extraction.npc_registry",
+		"locations": "narratio.extraction.location_registry",
+		"scenes":    "narratio.extraction.scene_descriptions",
+	}
+	gotSources := make(map[string]string, len(brief.Inputs))
+	for name, input := range brief.Inputs {
+		gotSources[name] = input.Source
+	}
+	if !reflect.DeepEqual(gotSources, wantSources) {
+		t.Fatalf("subset example sources = %#v, want %#v", gotSources, wantSources)
+	}
+}
+
 func writeConfigFiles(t *testing.T, pipelineYAML, sessionYAML string) (string, string) {
 	t.Helper()
 	if !strings.Contains(pipelineYAML, "\naudita:") && !strings.HasPrefix(pipelineYAML, "audita:") {

internal/config/notarius_test.go

@@ -0,0 +1,283 @@
+package config
+
+import (
+	"os"
+	"path/filepath"
+	"strings"
+	"testing"
+)
+
+func TestNotariusOmittedAndDisabledBehavior(t *testing.T) {
+	dir := t.TempDir()
+	omittedPath := filepath.Join(dir, "omitted.yml")
+	if err := os.WriteFile(omittedPath, []byte(testPipelineBaseYAML), 0o644); err != nil {
+		t.Fatalf("write omitted pipeline: %v", err)
+	}
+	omitted, err := LoadPipeline(omittedPath)
+	if err != nil {
+		t.Fatalf("LoadPipeline(omitted) error = %v", err)
+	}
+	if omitted.Notarius != nil {
+		t.Fatalf("Notarius = %#v, want nil when omitted", omitted.Notarius)
+	}
+
+	disabledPath := filepath.Join(dir, "disabled.yml")
+	disabledYAML := testPipelineBaseYAML + `
+notarius:
+  enabled: false
+  config_path: relative/notarius.yml
+`
+	if err := os.WriteFile(disabledPath, []byte(disabledYAML), 0o644); err != nil {
+		t.Fatalf("write disabled pipeline: %v", err)
+	}
+	disabled, err := LoadPipeline(disabledPath)
+	if err != nil {
+		t.Fatalf("LoadPipeline(disabled) error = %v", err)
+	}
+	if disabled.Notarius == nil {
+		t.Fatal("Notarius = nil, want configured disabled section")
+	}
+	if disabled.Notarius.Enabled {
+		t.Fatal("Notarius.Enabled = true, want false")
+	}
+	if disabled.Notarius.Binary != DefaultNotariusBinary || disabled.Notarius.Timeout != DefaultNotariusTimeout {
+		t.Fatalf("disabled defaults = %#v", disabled.Notarius)
+	}
+	if disabled.Notarius.ConfigPath != "relative/notarius.yml" || disabled.Notarius.WorkingDirectory != "" {
+		t.Fatalf("disabled paths were resolved unexpectedly: %#v", disabled.Notarius)
+	}
+}
+
+func TestNotariusEnabledDefaultsAndPathResolution(t *testing.T) {
+	dir := t.TempDir()
+	pipelinePath := filepath.Join(dir, "deployment", "pipeline.yml")
+	if err := os.MkdirAll(filepath.Dir(pipelinePath), 0o755); err != nil {
+		t.Fatalf("MkdirAll() error = %v", err)
+	}
+	pipelineYAML := testPipelineBaseYAML + `
+notarius:
+  enabled: true
+  config_path: notarius/config.yml
+  pipeline_id: dnd-session
+  outputs:
+    npc_registry:
+      lane_id: npc-registry
+      media_type: application/json
+      schema_id: notarius.dnd.npc_registry
+      schema_version: v1
+`
+	if err := os.WriteFile(pipelinePath, []byte(pipelineYAML), 0o644); err != nil {
+		t.Fatalf("write pipeline: %v", err)
+	}
+
+	cfg, err := LoadPipeline(pipelinePath)
+	if err != nil {
+		t.Fatalf("LoadPipeline() error = %v", err)
+	}
+	wantConfigPath := filepath.Join(filepath.Dir(pipelinePath), "notarius", "config.yml")
+	if cfg.Notarius.Binary != "notarius" || cfg.Notarius.Timeout != "3h" {
+		t.Fatalf("defaults = %#v", cfg.Notarius)
+	}
+	if cfg.Notarius.ConfigPath != wantConfigPath {
+		t.Fatalf("config_path = %q, want %q", cfg.Notarius.ConfigPath, wantConfigPath)
+	}
+	if cfg.Notarius.WorkingDirectory != filepath.Dir(wantConfigPath) {
+		t.Fatalf("working_directory = %q, want %q", cfg.Notarius.WorkingDirectory, filepath.Dir(wantConfigPath))
+	}
+
+	explicitPath := filepath.Join(dir, "explicit.yml")
+	explicitYAML := strings.Replace(pipelineYAML, "  pipeline_id: dnd-session\n", "  pipeline_id: dnd-session\n  working_directory: runtime\n", 1)
+	if err := os.WriteFile(explicitPath, []byte(explicitYAML), 0o644); err != nil {
+		t.Fatalf("write explicit pipeline: %v", err)
+	}
+	explicit, err := LoadPipeline(explicitPath)
+	if err != nil {
+		t.Fatalf("LoadPipeline(explicit working directory) error = %v", err)
+	}
+	if explicit.Notarius.WorkingDirectory != filepath.Join(dir, "runtime") {
+		t.Fatalf("explicit working_directory = %q, want %q", explicit.Notarius.WorkingDirectory, filepath.Join(dir, "runtime"))
+	}
+}
+
+func TestNotariusStrictYAML(t *testing.T) {
+	tests := []struct {
+		name string
+		yaml string
+	}{
+		{name: "unknown section field", yaml: "notarius:\n  unknown: true\n"},
+		{name: "unknown output field", yaml: "notarius:\n  outputs:\n    npc_registry:\n      lane_id: npc-registry\n      unknown: true\n"},
+		{name: "unsupported session id", yaml: "notarius:\n  session_id: forbidden\n"},
+		{name: "unsupported model", yaml: "notarius:\n  model: forbidden\n"},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			path := filepath.Join(t.TempDir(), "pipeline.yml")
+			if err := os.WriteFile(path, []byte(testPipelineBaseYAML+"\n"+tt.yaml), 0o644); err != nil {
+				t.Fatalf("write pipeline: %v", err)
+			}
+			if _, err := LoadPipeline(path); err == nil || !strings.Contains(err.Error(), "strict decode failed") {
+				t.Fatalf("LoadPipeline() error = %v, want strict decode failure", err)
+			}
+		})
+	}
+}
+
+func TestNotariusEnabledValidation(t *testing.T) {
+	valid := `notarius:
+  enabled: true
+  config_path: ./notarius.yml
+  pipeline_id: dnd-session
+  timeout: 45m
+  outputs:
+    npc_registry:
+      lane_id: npc-registry
+      media_type: application/json
+      schema_id: notarius.dnd.npc_registry
+      schema_version: v1
+      module_key: dnd/npc-registry
+`
+	tests := []struct {
+		name    string
+		section string
+		wantErr string
+	}{
+		{name: "valid", section: valid},
+		{name: "blank binary", section: strings.Replace(valid, "  enabled: true\n", "  enabled: true\n  binary: \"   \"\n", 1), wantErr: "pipeline.notarius.binary is required"},
+		{name: "missing config path", section: strings.Replace(valid, "  config_path: ./notarius.yml\n", "", 1), wantErr: "pipeline.notarius.config_path is required"},
+		{name: "missing pipeline id", section: strings.Replace(valid, "  pipeline_id: dnd-session\n", "", 1), wantErr: "pipeline.notarius.pipeline_id is required"},
+		{name: "missing outputs", section: strings.Split(valid, "  outputs:\n")[0], wantErr: "pipeline.notarius.outputs must contain at least one output"},
+		{name: "zero timeout", section: strings.Replace(valid, "  timeout: 45m", "  timeout: 0s", 1), wantErr: "pipeline.notarius.timeout must be positive"},
+		{name: "negative timeout", section: strings.Replace(valid, "  timeout: 45m", "  timeout: -1s", 1), wantErr: "pipeline.notarius.timeout must be positive"},
+		{name: "invalid timeout", section: strings.Replace(valid, "  timeout: 45m", "  timeout: later", 1), wantErr: "pipeline.notarius.timeout must be a valid duration"},
+		{name: "invalid output key", section: strings.Replace(valid, "    npc_registry:", "    npc-registry:", 1), wantErr: "outputs keys must match"},
+		{name: "missing lane", section: strings.Replace(valid, "      lane_id: npc-registry\n", "", 1), wantErr: "lane_id is required"},
+		{name: "missing media type", section: strings.Replace(valid, "      media_type: application/json\n", "", 1), wantErr: "media_type is required"},
+		{name: "missing schema id", section: strings.Replace(valid, "      schema_id: notarius.dnd.npc_registry\n", "", 1), wantErr: "schema_id is required"},
+		{name: "missing schema version", section: strings.Replace(valid, "      schema_version: v1\n", "", 1), wantErr: "schema_version is required"},
+		{
+			name: "normalized key collision",
+			section: strings.Replace(valid, "      module_key: dnd/npc-registry\n", `      module_key: dnd/npc-registry
+    " npc_registry ":
+      lane_id: npc-registry-two
+      media_type: application/json
+      schema_id: two
+      schema_version: v1
+`, 1),
+			wantErr: "normalize to duplicate source",
+		},
+		{
+			name: "duplicate normalized lane",
+			section: strings.Replace(valid, "      module_key: dnd/npc-registry\n", `      module_key: dnd/npc-registry
+    spells:
+      lane_id: " npc-registry "
+      media_type: application/json
+      schema_id: two
+      schema_version: v1
+`, 1),
+			wantErr: "duplicates pipeline.notarius.outputs.npc_registry.lane_id",
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			pipelinePath, sessionPath := writeConfigFiles(t, testPipelineBaseYAML+"\n"+tt.section, testSessionBaseYAML)
+			cfg, err := Load(pipelinePath, sessionPath)
+			if err != nil {
+				t.Fatalf("Load() error = %v", err)
+			}
+			err = Validate(cfg)
+			if tt.wantErr == "" {
+				if err != nil {
+					t.Fatalf("Validate() error = %v", err)
+				}
+				output := cfg.Pipeline.Notarius.Outputs["npc_registry"]
+				if output.LaneID != "npc-registry" || output.ModuleKey != "dnd/npc-registry" {
+					t.Fatalf("normalized output = %#v", output)
+				}
+				return
+			}
+			if err == nil || !strings.Contains(err.Error(), tt.wantErr) {
+				t.Fatalf("Validate() error = %v, want containing %q", err, tt.wantErr)
+			}
+		})
+	}
+}
+
+func TestExtractionReferencesRequireDeclaredOutput(t *testing.T) {
+	declared := `notarius:
+  enabled: false
+  outputs:
+    npc_registry: {}
+`
+	tests := []struct {
+		name    string
+		body    string
+		wantErr string
+	}{
+		{
+			name: "scriptorium declared extraction",
+			body: declared + `scriptorium:
+  artifacts:
+    recap:
+      inputs:
+        npcs:
+          source: narratio.extraction.npc_registry
+`,
+		},
+		{
+			name: "scriptorium unknown extraction",
+			body: declared + `scriptorium:
+  artifacts:
+    recap:
+      inputs:
+        npcs:
+          source: narratio.extraction.unknown
+`,
+			wantErr: `references unknown extraction output "unknown"`,
+		},
+		{
+			name: "publish declared extraction",
+			body: declared + `publish:
+  outputs:
+    - source: narratio.extraction.npc_registry
+      dest: artifacts/npc-registry.json
+`,
+		},
+		{
+			name: "publish unknown extraction",
+			body: declared + `publish:
+  outputs:
+    - source: narratio.extraction.unknown
+      dest: artifacts/unknown.json
+`,
+			wantErr: `extraction output "unknown" is not defined`,
+		},
+		{
+			name: "publish lock declared extraction",
+			body: declared + `publish:
+  locks:
+    - source: narratio.extraction.npc_registry
+`,
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			pipelinePath, sessionPath := writeConfigFiles(t, testPipelineBaseYAML+"\n"+tt.body, testSessionBaseYAML)
+			cfg, err := Load(pipelinePath, sessionPath)
+			if err != nil {
+				t.Fatalf("Load() error = %v", err)
+			}
+			err = Validate(cfg)
+			if tt.wantErr == "" {
+				if err != nil {
+					t.Fatalf("Validate() error = %v", err)
+				}
+				return
+			}
+			if err == nil || !strings.Contains(err.Error(), tt.wantErr) {
+				t.Fatalf("Validate() error = %v, want containing %q", err, tt.wantErr)
+			}
+		})
+	}
+}

internal/config/storage_publish_test.go

@@ -537,7 +537,7 @@ func TestPublishLockStoreBytesStrictDecodeAndValidation(t *testing.T) {
 	store, err := LoadPublishLockStoreBytes("locks.yml", []byte(`locks:
   - source: narratio.transcript.final_trimmed
     reason: reviewed
-`), nil)
+`), nil, nil)
 	if err != nil {
 		t.Fatalf("LoadPublishLockStoreBytes() error = %v", err)
 	}
@@ -548,7 +548,7 @@ func TestPublishLockStoreBytesStrictDecodeAndValidation(t *testing.T) {
 	_, err = LoadPublishLockStoreBytes("locks.yml", []byte(`locks:
   - source: narratio.transcript.final_trimmed
     dest: transcripts/final.trimmed.json
-`), nil)
+`), nil, nil)
 	if err == nil || !strings.Contains(err.Error(), "strict decode failed") {
 		t.Fatalf("unknown field error = %v, want strict decode failed", err)
 	}
@@ -556,7 +556,7 @@ func TestPublishLockStoreBytesStrictDecodeAndValidation(t *testing.T) {
 	_, err = LoadPublishLockStoreBytes("locks.yml", []byte(`locks:
   - source: narratio.transcript.final_trimmed
   - source: narratio.transcript.final_trimmed
-`), nil)
+`), nil, nil)
 	if err == nil || !strings.Contains(err.Error(), "duplicates another publish lock source") {
 		t.Fatalf("duplicate error = %v", err)
 	}

internal/config/validate.go

@@ -6,9 +6,11 @@ import (
 	"net/url"
 	"path/filepath"
 	"regexp"
+	"sort"
 	"strings"
 	"time"
 
+	"gitea.maximumdirect.net/eric/narratio/internal/artifactmodel"
 	"gitea.maximumdirect.net/eric/narratio/internal/artifactpolicy"
 	"gitea.maximumdirect.net/eric/narratio/internal/pathsafe"
 )
@@ -85,7 +87,10 @@ func validatePipeline(cfg *PipelineConfig) error {
 	if err := validateCache(cfg.Cache); err != nil {
 		return err
 	}
-	if err := validatePublish(cfg.Publish, cfg.Scriptorium); err != nil {
+	if err := validateNotarius(cfg.Notarius, cfg.Scriptorium); err != nil {
+		return err
+	}
+	if err := validatePublish(cfg.Publish, cfg.Scriptorium, cfg.Notarius); err != nil {
 		return err
 	}
 	if err := validateWhisperX(cfg.WhisperX); err != nil {
@@ -106,7 +111,7 @@ func validatePipeline(cfg *PipelineConfig) error {
 	if err := validateRender(cfg.Render); err != nil {
 		return err
 	}
-	if err := validateScriptorium(cfg.Scriptorium); err != nil {
+	if err := validateScriptorium(cfg.Scriptorium, cfg.Notarius); err != nil {
 		return err
 	}
 	if err := validateDuration("pipeline.notification.timeout", cfg.Notification.Timeout); err != nil {
@@ -149,11 +154,12 @@ func validateCache(cfg CacheConfig) error {
 	return nil
 }
 
-func validatePublish(cfg *PublishConfig, scriptorium *ScriptoriumConfig) error {
+func validatePublish(cfg *PublishConfig, scriptorium *ScriptoriumConfig, notarius *NotariusConfig) error {
 	if cfg == nil {
 		return nil
 	}
 	configuredOutputs := scriptoriumOutputPathMap(scriptorium)
+	extractionOutputs := notariusOutputKeySet(notarius)
 	seenDest := map[string]struct{}{}
 	for i, item := range cfg.Outputs {
 		prefix := fmt.Sprintf("pipeline.publish.outputs[%d]", i)
@@ -161,12 +167,12 @@ func validatePublish(cfg *PublishConfig, scriptorium *ScriptoriumConfig) error {
 		if source == "" {
 			return fmt.Errorf("%s.source is required", prefix)
 		}
-		if _, err := artifactpolicy.ValidatePublishSource(source, configuredOutputs); err != nil {
+		if _, err := artifactpolicy.ValidatePublishSourceWithExtractions(source, configuredOutputs, extractionOutputs); err != nil {
 			return fmt.Errorf("%s.source %q is unsupported: %w", prefix, item.Source, err)
 		}
 		dest := strings.TrimSpace(item.Dest)
 		if dest == "" {
-			derivedDest, err := artifactpolicy.ResolvePublishedDestination(source, "", configuredOutputs)
+			derivedDest, err := artifactpolicy.ResolvePublishedDestinationWithExtractions(source, "", configuredOutputs, extractionOutputs)
 			if err != nil {
 				return fmt.Errorf("%s.dest is required when destination cannot be derived from %q: %w", prefix, source, err)
 			}
@@ -189,7 +195,7 @@ func validatePublish(cfg *PublishConfig, scriptorium *ScriptoriumConfig) error {
 		}
 		seenDest[normalizedDest] = struct{}{}
 	}
-	locks, err := ValidatePublishLockRules(cfg.Locks, scriptorium, "pipeline.publish.locks")
+	locks, err := ValidatePublishLockRules(cfg.Locks, scriptorium, notarius, "pipeline.publish.locks")
 	if err != nil {
 		return err
 	}
@@ -198,10 +204,11 @@ func validatePublish(cfg *PublishConfig, scriptorium *ScriptoriumConfig) error {
 }
 
 // ValidatePublishLockRules validates and normalizes source-based publish locks.
-func ValidatePublishLockRules(locks []PublishLockRule, scriptorium *ScriptoriumConfig, label string) ([]PublishLockRule, error) {
+func ValidatePublishLockRules(locks []PublishLockRule, scriptorium *ScriptoriumConfig, notarius *NotariusConfig, label string) ([]PublishLockRule, error) {
 	seenLocks := map[string]struct{}{}
 	out := make([]PublishLockRule, 0, len(locks))
 	configuredOutputs := scriptoriumOutputPathMap(scriptorium)
+	extractionOutputs := notariusOutputKeySet(notarius)
 	if strings.TrimSpace(label) == "" {
 		label = "publish.locks"
 	}
@@ -211,7 +218,7 @@ func ValidatePublishLockRules(locks []PublishLockRule, scriptorium *ScriptoriumC
 		if source == "" {
 			return nil, fmt.Errorf("%s.source is required", prefix)
 		}
-		if _, err := artifactpolicy.ValidatePublishSource(source, configuredOutputs); err != nil {
+		if _, err := artifactpolicy.ValidatePublishSourceWithExtractions(source, configuredOutputs, extractionOutputs); err != nil {
 			return nil, fmt.Errorf("%s.source %q is unsupported: %w", prefix, item.Source, err)
 		}
 		if _, ok := seenLocks[source]; ok {
@@ -264,6 +271,20 @@ func scriptoriumOutputPathMap(scriptorium *ScriptoriumConfig) map[string]string
 	return out
 }
 
+func notariusOutputKeySet(notarius *NotariusConfig) map[string]struct{} {
+	out := map[string]struct{}{}
+	if notarius == nil {
+		return out
+	}
+	for key := range notarius.Outputs {
+		trimmed := strings.TrimSpace(key)
+		if artifactpolicy.IsConfiguredKey(trimmed) {
+			out[trimmed] = struct{}{}
+		}
+	}
+	return out
+}
+
 func validateSecrets(cfg *SecretsConfig) error {
 	if cfg == nil {
 		return nil
@@ -474,7 +495,103 @@ func validateAudita(cfg AuditaConfig) error {
 	return nil
 }
 
-func validateScriptorium(cfg *ScriptoriumConfig) error {
+func validateNotarius(cfg *NotariusConfig, scriptorium *ScriptoriumConfig) error {
+	if cfg == nil || !cfg.Enabled {
+		return nil
+	}
+	if strings.TrimSpace(cfg.Binary) == "" {
+		return fmt.Errorf("pipeline.notarius.binary is required when pipeline.notarius.enabled is true")
+	}
+	if strings.TrimSpace(cfg.ConfigPath) == "" {
+		return fmt.Errorf("pipeline.notarius.config_path is required when pipeline.notarius.enabled is true")
+	}
+	if strings.TrimSpace(cfg.PipelineID) == "" {
+		return fmt.Errorf("pipeline.notarius.pipeline_id is required when pipeline.notarius.enabled is true")
+	}
+	if len(cfg.Outputs) == 0 {
+		return fmt.Errorf("pipeline.notarius.outputs must contain at least one output when pipeline.notarius.enabled is true")
+	}
+	duration, err := time.ParseDuration(strings.TrimSpace(cfg.Timeout))
+	if err != nil {
+		return fmt.Errorf("pipeline.notarius.timeout must be a valid duration: %w", err)
+	}
+	if duration <= 0 {
+		return fmt.Errorf("pipeline.notarius.timeout must be positive")
+	}
+	if strings.TrimSpace(cfg.WorkingDirectory) == "" {
+		return fmt.Errorf("pipeline.notarius.working_directory is required when pipeline.notarius.enabled is true")
+	}
+
+	reservedSources := map[string]string{}
+	for _, spec := range artifactmodel.RuntimeTranscriptArtifacts() {
+		reservedSources[spec.SourceID] = "built-in source"
+	}
+	reservedSources[artifactpolicy.SourceBoundsSession] = "built-in source"
+	if scriptorium != nil {
+		for key := range scriptorium.Artifacts {
+			normalizedKey := strings.TrimSpace(key)
+			reservedSources[artifactpolicy.ConfiguredSourceID(normalizedKey)] = "configured Scriptorium source"
+			reservedSources[artifactpolicy.PreviousSessionSourceID(normalizedKey)] = "previous-session source"
+		}
+	}
+
+	rawKeys := make([]string, 0, len(cfg.Outputs))
+	for key := range cfg.Outputs {
+		rawKeys = append(rawKeys, key)
+	}
+	sort.Strings(rawKeys)
+	normalizedOutputs := make(map[string]NotariusOutputConfig, len(cfg.Outputs))
+	sourceOwners := map[string]string{}
+	laneOwners := map[string]string{}
+	for _, rawKey := range rawKeys {
+		output := cfg.Outputs[rawKey]
+		key := strings.TrimSpace(rawKey)
+		if !artifactpolicy.IsConfiguredKey(key) {
+			return fmt.Errorf("pipeline.notarius.outputs keys must match ^[a-z][a-z0-9_]*$")
+		}
+		sourceID := artifactpolicy.ExtractionSourceID(key)
+		if previousKey, ok := sourceOwners[sourceID]; ok {
+			return fmt.Errorf("pipeline.notarius.outputs keys %q and %q normalize to duplicate source %q", previousKey, rawKey, sourceID)
+		}
+		if owner, ok := reservedSources[sourceID]; ok {
+			return fmt.Errorf("pipeline.notarius.outputs.%s source %q collides with %s", key, sourceID, owner)
+		}
+		sourceOwners[sourceID] = rawKey
+
+		output.LaneID = strings.TrimSpace(output.LaneID)
+		output.MediaType = strings.TrimSpace(output.MediaType)
+		output.SchemaID = strings.TrimSpace(output.SchemaID)
+		output.SchemaVersion = strings.TrimSpace(output.SchemaVersion)
+		output.ModuleKey = strings.TrimSpace(output.ModuleKey)
+		prefix := "pipeline.notarius.outputs." + key
+		if output.LaneID == "" {
+			return fmt.Errorf("%s.lane_id is required", prefix)
+		}
+		if previousKey, ok := laneOwners[output.LaneID]; ok {
+			return fmt.Errorf("%s.lane_id %q duplicates pipeline.notarius.outputs.%s.lane_id", prefix, output.LaneID, previousKey)
+		}
+		laneOwners[output.LaneID] = key
+		if output.MediaType == "" {
+			return fmt.Errorf("%s.media_type is required", prefix)
+		}
+		if output.SchemaID == "" {
+			return fmt.Errorf("%s.schema_id is required", prefix)
+		}
+		if output.SchemaVersion == "" {
+			return fmt.Errorf("%s.schema_version is required", prefix)
+		}
+		normalizedOutputs[key] = output
+	}
+	cfg.Binary = strings.TrimSpace(cfg.Binary)
+	cfg.ConfigPath = filepath.Clean(cfg.ConfigPath)
+	cfg.PipelineID = strings.TrimSpace(cfg.PipelineID)
+	cfg.Timeout = strings.TrimSpace(cfg.Timeout)
+	cfg.WorkingDirectory = filepath.Clean(cfg.WorkingDirectory)
+	cfg.Outputs = normalizedOutputs
+	return nil
+}
+
+func validateScriptorium(cfg *ScriptoriumConfig, notarius *NotariusConfig) error {
 	if cfg == nil {
 		return nil
 	}
@@ -491,7 +608,7 @@ func validateScriptorium(cfg *ScriptoriumConfig) error {
 	configuredArtifacts := make(map[string]struct{}, len(cfg.Artifacts))
 	referencedArtifacts := make(map[string]struct{})
 	for artifactName := range cfg.Artifacts {
-		if !scriptoriumArtifactKeyRE.MatchString(strings.TrimSpace(artifactName)) {
+		if !artifactpolicy.IsConfiguredKey(artifactName) {
 			return fmt.Errorf("pipeline.scriptorium.artifacts keys must match ^[a-z][a-z0-9_]*$")
 		}
 		configuredArtifacts[artifactName] = struct{}{}
@@ -544,7 +661,7 @@ func validateScriptorium(cfg *ScriptoriumConfig) error {
 				return fmt.Errorf("pipeline.scriptorium.artifacts.%s.inputs.%s.source is required", artifactName, inputName)
 			}
 
-			referencedArtifact, err := validateScriptoriumInputSource(artifactName, inputName, source, configuredArtifacts)
+			referencedArtifact, err := validateScriptoriumInputSource(artifactName, inputName, source, configuredArtifacts, notariusOutputKeySet(notarius))
 			if err != nil {
 				return err
 			}
@@ -684,9 +801,12 @@ func publishUploadConfiguredForS3(pipeline *PipelineConfig) bool {
 
 var windowsAbsPathRE = regexp.MustCompile(`^[A-Za-z]:[\\/].*`)
 var envVarNameRE = regexp.MustCompile(`^[A-Za-z_][A-Za-z0-9_]*$`)
-var scriptoriumArtifactKeyRE = regexp.MustCompile(`^[a-z][a-z0-9_]*$`)
 
-func validateScriptoriumInputSource(artifactName, inputName, source string, configuredArtifacts map[string]struct{}) (string, error) {
+func validateScriptoriumInputSource(
+	artifactName, inputName, source string,
+	configuredArtifacts map[string]struct{},
+	extractionOutputs map[string]struct{},
+) (string, error) {
 	trimmedSource := strings.TrimSpace(source)
 	descriptor, err := artifactpolicy.DescribeScriptoriumInputSource(trimmedSource)
 	if err != nil {
@@ -705,7 +825,7 @@ func validateScriptoriumInputSource(artifactName, inputName, source string, conf
 			source,
 		)
 	}
-	if err := artifactpolicy.ValidateInputConfiguredReference(descriptor, configuredArtifacts); err != nil {
+	if err := artifactpolicy.ValidateInputReference(descriptor, configuredArtifacts, extractionOutputs); err != nil {
 		var unknownConfigured *artifactpolicy.UnknownConfiguredArtifactError
 		if errors.As(err, &unknownConfigured) {
 			return "", fmt.Errorf(
@@ -716,6 +836,16 @@ func validateScriptoriumInputSource(artifactName, inputName, source string, conf
 				unknownConfigured.ConfiguredKey,
 			)
 		}
+		var unknownExtraction *artifactpolicy.UnknownExtractionArtifactError
+		if errors.As(err, &unknownExtraction) {
+			return "", fmt.Errorf(
+				"pipeline.scriptorium.artifacts.%s.inputs.%s.source %q references unknown extraction output %q",
+				artifactName,
+				inputName,
+				source,
+				unknownExtraction.ConfiguredKey,
+			)
+		}
 		return "", fmt.Errorf(
 			"pipeline.scriptorium.artifacts.%s.inputs.%s.source %q is unsupported",
 			artifactName,

internal/fileops/directory.go

@@ -0,0 +1,308 @@
+package fileops
+
+import (
+	"errors"
+	"fmt"
+	"io"
+	"os"
+	"path/filepath"
+	"sort"
+	"strings"
+)
+
+const (
+	promotedDirectoryMode = 0o755
+	promotedFileMode      = 0o644
+)
+
+// ErrAtomicDirectoryPromotionUnsupported indicates that the current operating
+// system lacks the atomic no-replace primitive required by PromoteDirectory.
+var ErrAtomicDirectoryPromotionUnsupported = errors.New("atomic no-replace directory promotion is unsupported")
+
+// PromoteDirectory copies an existing regular-file tree into a new directory
+// and installs the complete copy atomically. It never removes the source or
+// replaces an existing destination.
+func PromoteDirectory(src, dst string) error {
+	if err := checkAtomicDirectoryPromotionSupport(); err != nil {
+		return err
+	}
+	return promoteDirectory(src, dst, renameDirectoryNoReplace)
+}
+
+func promoteDirectory(src, dst string, install func(string, string) error) error {
+	return promoteDirectoryWithHooks(src, dst, install, sourceTraversalHooks{})
+}
+
+type sourceTraversalHooks struct {
+	afterRootInspect  func()
+	afterEntryInspect func(string)
+}
+
+func promoteDirectoryWithHooks(
+	src, dst string,
+	install func(string, string) error,
+	hooks sourceTraversalHooks,
+) error {
+	if strings.TrimSpace(src) == "" || strings.TrimSpace(dst) == "" {
+		return fmt.Errorf("source and destination directory paths are required")
+	}
+
+	sourceInfo, err := os.Lstat(src)
+	if err != nil {
+		return fmt.Errorf("inspect source directory: %w", err)
+	}
+	if !sourceInfo.IsDir() {
+		return fmt.Errorf("source path %q is not a directory", src)
+	}
+
+	if _, err := os.Lstat(dst); err == nil {
+		return fmt.Errorf("destination path %q already exists", dst)
+	} else if !errors.Is(err, os.ErrNotExist) {
+		return fmt.Errorf("inspect destination path: %w", err)
+	}
+
+	insideSource, err := pathWithin(src, dst)
+	if err != nil {
+		return err
+	}
+	if insideSource {
+		return fmt.Errorf("destination path %q must not be inside source directory %q", dst, src)
+	}
+
+	destinationParent := filepath.Dir(dst)
+	parentInfo, err := os.Lstat(destinationParent)
+	if err != nil {
+		return fmt.Errorf("inspect destination parent: %w", err)
+	}
+	if !parentInfo.IsDir() {
+		return fmt.Errorf("destination parent %q is not a directory", destinationParent)
+	}
+
+	temporary, err := os.MkdirTemp(destinationParent, "."+filepath.Base(dst)+".tmp-*")
+	if err != nil {
+		return fmt.Errorf("create temporary destination directory: %w", err)
+	}
+	removeTemporary := true
+	defer func() {
+		if removeTemporary {
+			_ = os.RemoveAll(temporary)
+		}
+	}()
+
+	sourceRoot, err := openVerifiedSourceRoot(src, sourceInfo, hooks)
+	if err != nil {
+		return err
+	}
+	defer func() { _ = sourceRoot.Close() }()
+
+	if err := copyRegularTree(sourceRoot, src, temporary, hooks); err != nil {
+		return err
+	}
+	if err := os.Chmod(temporary, promotedDirectoryMode); err != nil {
+		return fmt.Errorf("set temporary root permissions: %w", err)
+	}
+	if err := syncDirectory(temporary); err != nil {
+		return fmt.Errorf("sync temporary root: %w", err)
+	}
+	if err := install(temporary, dst); err != nil {
+		return fmt.Errorf("install promoted directory: %w", err)
+	}
+
+	removeTemporary = false
+	if err := syncDirectory(destinationParent); err != nil {
+		return fmt.Errorf("sync destination parent: %w", err)
+	}
+	return nil
+}
+
+func openVerifiedSourceRoot(path string, inspected os.FileInfo, hooks sourceTraversalHooks) (*os.Root, error) {
+	if hooks.afterRootInspect != nil {
+		hooks.afterRootInspect()
+	}
+
+	root, err := os.OpenRoot(path)
+	if err != nil {
+		return nil, fmt.Errorf("open source directory %q: %w", path, err)
+	}
+	verified := false
+	defer func() {
+		if !verified {
+			_ = root.Close()
+		}
+	}()
+
+	opened, err := root.Stat(".")
+	if err != nil {
+		return nil, fmt.Errorf("inspect opened source directory %q: %w", path, err)
+	}
+	if !opened.IsDir() || !os.SameFile(inspected, opened) {
+		return nil, fmt.Errorf("source directory %q changed while being opened", path)
+	}
+	current, err := os.Lstat(path)
+	if err != nil {
+		return nil, fmt.Errorf("reinspect source directory %q: %w", path, err)
+	}
+	if current.Mode()&os.ModeSymlink != 0 || !current.IsDir() || !os.SameFile(opened, current) {
+		return nil, fmt.Errorf("source directory %q changed while being opened", path)
+	}
+
+	verified = true
+	return root, nil
+}
+
+func copyRegularTree(src *os.Root, sourcePath, dst string, hooks sourceTraversalHooks) error {
+	directory, err := src.Open(".")
+	if err != nil {
+		return fmt.Errorf("open source directory %q for traversal: %w", sourcePath, err)
+	}
+	defer func() { _ = directory.Close() }()
+
+	entries, err := directory.ReadDir(-1)
+	if err != nil {
+		return fmt.Errorf("read source directory %q: %w", sourcePath, err)
+	}
+	sort.Slice(entries, func(i, j int) bool {
+		return entries[i].Name() < entries[j].Name()
+	})
+
+	for _, entry := range entries {
+		entryPath := filepath.Join(sourcePath, entry.Name())
+		destinationPath := filepath.Join(dst, entry.Name())
+		info, err := src.Lstat(entry.Name())
+		if err != nil {
+			return fmt.Errorf("inspect source entry %q: %w", entryPath, err)
+		}
+
+		switch {
+		case info.Mode().IsRegular():
+			if hooks.afterEntryInspect != nil {
+				hooks.afterEntryInspect(entryPath)
+			}
+			if err := copyRegularFile(src, entry.Name(), entryPath, destinationPath, info); err != nil {
+				return err
+			}
+		case info.IsDir():
+			if hooks.afterEntryInspect != nil {
+				hooks.afterEntryInspect(entryPath)
+			}
+			if err := copyRegularDirectory(src, entry.Name(), entryPath, destinationPath, info, hooks); err != nil {
+				return err
+			}
+		default:
+			return fmt.Errorf("source entry %q has unsupported file type %s", entryPath, info.Mode().Type())
+		}
+	}
+
+	return nil
+}
+
+func copyRegularDirectory(
+	parent *os.Root,
+	name, sourcePath, dst string,
+	inspected os.FileInfo,
+	hooks sourceTraversalHooks,
+) error {
+	child, err := parent.OpenRoot(name)
+	if err != nil {
+		return fmt.Errorf("open source directory %q: %w", sourcePath, err)
+	}
+	defer func() { _ = child.Close() }()
+
+	opened, err := child.Stat(".")
+	if err != nil {
+		return fmt.Errorf("inspect opened source directory %q: %w", sourcePath, err)
+	}
+	if !opened.IsDir() || !os.SameFile(inspected, opened) {
+		return fmt.Errorf("source directory %q changed while being copied", sourcePath)
+	}
+	current, err := parent.Lstat(name)
+	if err != nil {
+		return fmt.Errorf("reinspect source directory %q: %w", sourcePath, err)
+	}
+	if current.Mode()&os.ModeSymlink != 0 || !current.IsDir() || !os.SameFile(opened, current) {
+		return fmt.Errorf("source directory %q changed while being copied", sourcePath)
+	}
+
+	if err := os.Mkdir(dst, promotedDirectoryMode); err != nil {
+		return fmt.Errorf("create destination directory %q: %w", dst, err)
+	}
+	if err := copyRegularTree(child, sourcePath, dst, hooks); err != nil {
+		return err
+	}
+	if err := os.Chmod(dst, promotedDirectoryMode); err != nil {
+		return fmt.Errorf("set destination directory permissions %q: %w", dst, err)
+	}
+	if err := syncDirectory(dst); err != nil {
+		return fmt.Errorf("sync destination directory %q: %w", dst, err)
+	}
+	return nil
+}
+
+func copyRegularFile(
+	root *os.Root,
+	name, sourcePath, dst string,
+	inspected os.FileInfo,
+) error {
+	in, err := root.Open(name)
+	if err != nil {
+		return fmt.Errorf("open source file %q: %w", sourcePath, err)
+	}
+	defer func() { _ = in.Close() }()
+
+	opened, err := in.Stat()
+	if err != nil {
+		return fmt.Errorf("inspect opened source file %q: %w", sourcePath, err)
+	}
+	if !opened.Mode().IsRegular() || !os.SameFile(inspected, opened) {
+		return fmt.Errorf("source file %q changed while being copied", sourcePath)
+	}
+	current, err := root.Lstat(name)
+	if err != nil {
+		return fmt.Errorf("reinspect source file %q: %w", sourcePath, err)
+	}
+	if current.Mode()&os.ModeSymlink != 0 || !current.Mode().IsRegular() || !os.SameFile(opened, current) {
+		return fmt.Errorf("source file %q changed while being copied", sourcePath)
+	}
+
+	out, err := os.OpenFile(dst, os.O_WRONLY|os.O_CREATE|os.O_EXCL, promotedFileMode)
+	if err != nil {
+		return fmt.Errorf("create destination file %q: %w", dst, err)
+	}
+	closed := false
+	defer func() {
+		if !closed {
+			_ = out.Close()
+		}
+	}()
+
+	if _, err := io.Copy(out, in); err != nil {
+		return fmt.Errorf("copy source file %q: %w", sourcePath, err)
+	}
+	if err := out.Chmod(promotedFileMode); err != nil {
+		return fmt.Errorf("set destination file permissions %q: %w", dst, err)
+	}
+	if err := out.Sync(); err != nil {
+		return fmt.Errorf("sync destination file %q: %w", dst, err)
+	}
+	if err := out.Close(); err != nil {
+		return fmt.Errorf("close destination file %q: %w", dst, err)
+	}
+	closed = true
+	return nil
+}
+
+func pathWithin(parent, candidate string) (bool, error) {
+	absoluteParent, err := filepath.Abs(parent)
+	if err != nil {
+		return false, fmt.Errorf("resolve source directory: %w", err)
+	}
+	absoluteCandidate, err := filepath.Abs(candidate)
+	if err != nil {
+		return false, fmt.Errorf("resolve destination directory: %w", err)
+	}
+	relative, err := filepath.Rel(absoluteParent, absoluteCandidate)
+	if err != nil {
+		return false, fmt.Errorf("compare source and destination directories: %w", err)
+	}
+	return relative != "." && relative != ".." && !strings.HasPrefix(relative, ".."+string(filepath.Separator)), nil
+}

internal/fileops/directory_special_unix_test.go

@@ -0,0 +1,35 @@
+//go:build linux || darwin
+
+package fileops
+
+import (
+	"os"
+	"path/filepath"
+	"syscall"
+	"testing"
+)
+
+func TestPromoteDirectoryRejectsNamedPipe(t *testing.T) {
+	root := t.TempDir()
+	src := filepath.Join(root, "source")
+	dst := filepath.Join(root, "destination")
+	if err := os.Mkdir(src, 0o755); err != nil {
+		t.Fatalf("Mkdir(source) error = %v", err)
+	}
+	pipe := filepath.Join(src, "events.pipe")
+	if err := syscall.Mkfifo(pipe, 0o600); err != nil {
+		t.Skipf("Mkfifo() unavailable: %v", err)
+	}
+
+	if err := PromoteDirectory(src, dst); err == nil {
+		t.Fatal("PromoteDirectory() error = nil, want named pipe rejection")
+	}
+	info, err := os.Lstat(pipe)
+	if err != nil || info.Mode()&os.ModeNamedPipe == 0 {
+		t.Fatalf("source named pipe was not preserved: info=%v err=%v", info, err)
+	}
+	if _, err := os.Lstat(dst); !os.IsNotExist(err) {
+		t.Fatalf("Lstat(destination) error = %v, want not exist", err)
+	}
+	assertNoMatchingTempDirectories(t, root, ".destination.tmp-")
+}

internal/fileops/directory_test.go

@@ -0,0 +1,501 @@
+//go:build linux || darwin || windows
+
+package fileops
+
+import (
+	"bytes"
+	"os"
+	"path/filepath"
+	"reflect"
+	"runtime"
+	"strings"
+	"testing"
+)
+
+func TestPromoteDirectoryCopiesNestedRegularTree(t *testing.T) {
+	root := t.TempDir()
+	src := filepath.Join(root, "source")
+	dst := filepath.Join(root, "promoted")
+	mustWriteFile(t, filepath.Join(src, "z-last.txt"), []byte("last"), 0o777)
+	mustWriteFile(t, filepath.Join(src, "nested", "binary.dat"), []byte{0, 1, 2, 0xff}, 0o600)
+	mustWriteFile(t, filepath.Join(src, "a-first.txt"), []byte("first"), 0o400)
+	if err := os.Mkdir(filepath.Join(src, "empty"), 0o700); err != nil {
+		t.Fatalf("Mkdir(empty) error = %v", err)
+	}
+
+	if err := PromoteDirectory(src, dst); err != nil {
+		t.Fatalf("PromoteDirectory() error = %v", err)
+	}
+
+	wantLayout := []string{".", "a-first.txt", "empty", "nested", "nested/binary.dat", "z-last.txt"}
+	if got := treeLayout(t, dst); !reflect.DeepEqual(got, wantLayout) {
+		t.Fatalf("promoted layout = %#v, want %#v", got, wantLayout)
+	}
+	assertFileBytes(t, filepath.Join(dst, "a-first.txt"), []byte("first"))
+	assertFileBytes(t, filepath.Join(dst, "nested", "binary.dat"), []byte{0, 1, 2, 0xff})
+	assertFileBytes(t, filepath.Join(dst, "z-last.txt"), []byte("last"))
+
+	if runtime.GOOS != "windows" {
+		for _, path := range []string{dst, filepath.Join(dst, "nested"), filepath.Join(dst, "empty")} {
+			info, err := os.Stat(path)
+			if err != nil {
+				t.Fatalf("Stat(%q) error = %v", path, err)
+			}
+			if got := info.Mode().Perm(); got != promotedDirectoryMode {
+				t.Fatalf("directory mode for %q = %o, want %o", path, got, promotedDirectoryMode)
+			}
+		}
+		for _, path := range []string{filepath.Join(dst, "a-first.txt"), filepath.Join(dst, "nested", "binary.dat"), filepath.Join(dst, "z-last.txt")} {
+			info, err := os.Stat(path)
+			if err != nil {
+				t.Fatalf("Stat(%q) error = %v", path, err)
+			}
+			if got := info.Mode().Perm(); got != promotedFileMode {
+				t.Fatalf("file mode for %q = %o, want %o", path, got, promotedFileMode)
+			}
+		}
+	}
+
+	assertFileBytes(t, filepath.Join(src, "nested", "binary.dat"), []byte{0, 1, 2, 0xff})
+	assertNoMatchingTempDirectories(t, root, ".promoted.tmp-")
+}
+
+func TestPromoteDirectoryRejectsInvalidPaths(t *testing.T) {
+	root := t.TempDir()
+	src := filepath.Join(root, "source")
+	if err := os.Mkdir(src, 0o755); err != nil {
+		t.Fatalf("Mkdir(source) error = %v", err)
+	}
+
+	tests := []struct {
+		name string
+		src  string
+		dst  string
+	}{
+		{name: "empty source", src: "", dst: filepath.Join(root, "out-a")},
+		{name: "empty destination", src: src, dst: " "},
+	}
+	for _, test := range tests {
+		t.Run(test.name, func(t *testing.T) {
+			if err := PromoteDirectory(test.src, test.dst); err == nil {
+				t.Fatal("PromoteDirectory() error = nil, want path validation failure")
+			}
+		})
+	}
+}
+
+func TestPromoteDirectoryRejectsExistingDestination(t *testing.T) {
+	root := t.TempDir()
+	src := filepath.Join(root, "source")
+	dst := filepath.Join(root, "destination")
+	mustWriteFile(t, filepath.Join(src, "value.txt"), []byte("source"), 0o644)
+	mustWriteFile(t, filepath.Join(dst, "value.txt"), []byte("existing"), 0o644)
+
+	err := PromoteDirectory(src, dst)
+	if err == nil || !strings.Contains(err.Error(), "already exists") {
+		t.Fatalf("PromoteDirectory() error = %v, want existing destination error", err)
+	}
+	assertFileBytes(t, filepath.Join(dst, "value.txt"), []byte("existing"))
+	assertFileBytes(t, filepath.Join(src, "value.txt"), []byte("source"))
+	assertNoMatchingTempDirectories(t, root, ".destination.tmp-")
+}
+
+func TestPromoteDirectoryRejectsNonDirectorySource(t *testing.T) {
+	root := t.TempDir()
+	src := filepath.Join(root, "source.txt")
+	dst := filepath.Join(root, "destination")
+	mustWriteFile(t, src, []byte("source"), 0o644)
+
+	if err := PromoteDirectory(src, dst); err == nil {
+		t.Fatal("PromoteDirectory() error = nil, want non-directory source error")
+	}
+	assertFileBytes(t, src, []byte("source"))
+	if _, err := os.Lstat(dst); !os.IsNotExist(err) {
+		t.Fatalf("Lstat(destination) error = %v, want not exist", err)
+	}
+}
+
+func TestPromoteDirectoryRejectsSymlinksWithoutFollowingThem(t *testing.T) {
+	root := t.TempDir()
+	externalFile := filepath.Join(root, "external.txt")
+	externalDirectory := filepath.Join(root, "external-directory")
+	mustWriteFile(t, externalFile, []byte("outside"), 0o644)
+	mustWriteFile(t, filepath.Join(externalDirectory, "secret.txt"), []byte("secret"), 0o644)
+
+	tests := []struct {
+		name   string
+		target string
+		link   string
+	}{
+		{name: "file", target: externalFile, link: "file-link"},
+		{name: "directory", target: externalDirectory, link: "directory-link"},
+		{name: "escaping", target: filepath.Join("..", "external.txt"), link: "escaping-link"},
+	}
+	for _, test := range tests {
+		t.Run(test.name, func(t *testing.T) {
+			src := filepath.Join(root, "source-"+test.name)
+			dst := filepath.Join(root, "destination-"+test.name)
+			if err := os.Mkdir(src, 0o755); err != nil {
+				t.Fatalf("Mkdir(source) error = %v", err)
+			}
+			if err := os.Symlink(test.target, filepath.Join(src, test.link)); err != nil {
+				t.Skipf("Symlink() unavailable: %v", err)
+			}
+
+			if err := PromoteDirectory(src, dst); err == nil {
+				t.Fatal("PromoteDirectory() error = nil, want symlink rejection")
+			}
+			linkInfo, err := os.Lstat(filepath.Join(src, test.link))
+			if err != nil || linkInfo.Mode()&os.ModeSymlink == 0 {
+				t.Fatalf("source symlink was not preserved: info=%v err=%v", linkInfo, err)
+			}
+			if _, err := os.Lstat(dst); !os.IsNotExist(err) {
+				t.Fatalf("Lstat(destination) error = %v, want not exist", err)
+			}
+			assertNoMatchingTempDirectories(t, root, ".destination-"+test.name+".tmp-")
+		})
+	}
+	assertFileBytes(t, externalFile, []byte("outside"))
+	assertFileBytes(t, filepath.Join(externalDirectory, "secret.txt"), []byte("secret"))
+}
+
+func TestPromoteDirectoryRejectsSymlinkSourceRoot(t *testing.T) {
+	root := t.TempDir()
+	target := filepath.Join(root, "target")
+	src := filepath.Join(root, "source")
+	dst := filepath.Join(root, "destination")
+	mustWriteFile(t, filepath.Join(target, "value.txt"), []byte("outside"), 0o644)
+	if err := os.Symlink(target, src); err != nil {
+		t.Skipf("Symlink() unavailable: %v", err)
+	}
+
+	if err := PromoteDirectory(src, dst); err == nil {
+		t.Fatal("PromoteDirectory() error = nil, want source-root symlink rejection")
+	}
+	assertFileBytes(t, filepath.Join(target, "value.txt"), []byte("outside"))
+	assertPathMissing(t, dst)
+	assertNoMatchingTempDirectories(t, root, ".destination.tmp-")
+}
+
+func TestPromoteDirectoryRejectsSourceRootReplacementBeforeOpen(t *testing.T) {
+	root := t.TempDir()
+	src := filepath.Join(root, "source")
+	preserved := filepath.Join(root, "source-preserved")
+	replacement := filepath.Join(root, "replacement")
+	dst := filepath.Join(root, "destination")
+	mustWriteFile(t, filepath.Join(src, "value.txt"), []byte("original"), 0o644)
+	mustWriteFile(t, filepath.Join(replacement, "value.txt"), []byte("replacement"), 0o644)
+
+	err := promoteDirectoryWithHooks(src, dst, renameDirectoryNoReplace, sourceTraversalHooks{
+		afterRootInspect: func() {
+			if err := os.Rename(src, preserved); err != nil {
+				t.Fatalf("Rename(original source) error = %v", err)
+			}
+			if err := os.Rename(replacement, src); err != nil {
+				t.Fatalf("Rename(replacement source) error = %v", err)
+			}
+		},
+	})
+	if err == nil {
+		t.Fatal("promoteDirectoryWithHooks() error = nil, want source identity failure")
+	}
+	assertFileBytes(t, filepath.Join(preserved, "value.txt"), []byte("original"))
+	assertFileBytes(t, filepath.Join(src, "value.txt"), []byte("replacement"))
+	assertPathMissing(t, dst)
+	assertNoMatchingTempDirectories(t, root, ".destination.tmp-")
+}
+
+func TestPromoteDirectoryRejectsIdentityPreservingSourceRootSymlinkReplacement(t *testing.T) {
+	root := t.TempDir()
+	src := filepath.Join(root, "source")
+	preserved := filepath.Join(root, "source-preserved")
+	dst := filepath.Join(root, "destination")
+	mustWriteFile(t, filepath.Join(src, "value.txt"), []byte("original"), 0o644)
+
+	err := promoteDirectoryWithHooks(src, dst, renameDirectoryNoReplace, sourceTraversalHooks{
+		afterRootInspect: func() {
+			if err := os.Rename(src, preserved); err != nil {
+				t.Fatalf("Rename(inspected source) error = %v", err)
+			}
+			if err := os.Symlink(filepath.Base(preserved), src); err != nil {
+				t.Skipf("Symlink() unavailable: %v", err)
+			}
+		},
+	})
+	if err == nil {
+		t.Fatal("promoteDirectoryWithHooks() error = nil, want source-root symlink replacement failure")
+	}
+	assertFileBytes(t, filepath.Join(preserved, "value.txt"), []byte("original"))
+	assertPathIsSymlink(t, src)
+	assertPathMissing(t, dst)
+	assertNoMatchingTempDirectories(t, root, ".destination.tmp-")
+}
+
+func TestPromoteDirectoryRejectsInspectedDirectorySymlinkReplacement(t *testing.T) {
+	root := t.TempDir()
+	src := filepath.Join(root, "source")
+	child := filepath.Join(src, "child")
+	preserved := filepath.Join(src, "child-preserved")
+	outside := filepath.Join(root, "outside")
+	dst := filepath.Join(root, "destination")
+	mustWriteFile(t, filepath.Join(child, "value.txt"), []byte("original"), 0o644)
+	mustWriteFile(t, filepath.Join(outside, "sentinel.txt"), []byte("outside"), 0o644)
+
+	replaced := false
+	err := promoteDirectoryWithHooks(src, dst, renameDirectoryNoReplace, sourceTraversalHooks{
+		afterEntryInspect: func(path string) {
+			if replaced || path != child {
+				return
+			}
+			replaced = true
+			if err := os.Rename(child, preserved); err != nil {
+				t.Fatalf("Rename(inspected child) error = %v", err)
+			}
+			if err := os.Symlink(filepath.Join("..", "outside"), child); err != nil {
+				t.Skipf("Symlink() unavailable: %v", err)
+			}
+			if err := os.Mkdir(dst, 0o755); err != nil {
+				t.Fatalf("Mkdir(concurrent destination) error = %v", err)
+			}
+			mustWriteFile(t, filepath.Join(dst, "value.txt"), []byte("concurrent"), 0o644)
+		},
+	})
+	if err == nil {
+		t.Fatal("promoteDirectoryWithHooks() error = nil, want symlink replacement failure")
+	}
+	assertFileBytes(t, filepath.Join(preserved, "value.txt"), []byte("original"))
+	assertFileBytes(t, filepath.Join(outside, "sentinel.txt"), []byte("outside"))
+	assertFileBytes(t, filepath.Join(dst, "value.txt"), []byte("concurrent"))
+	assertPathMissing(t, filepath.Join(dst, "sentinel.txt"))
+	assertNoMatchingTempDirectories(t, root, ".destination.tmp-")
+}
+
+func TestPromoteDirectoryRejectsInspectedFileIdentityMismatch(t *testing.T) {
+	root := t.TempDir()
+	src := filepath.Join(root, "source")
+	file := filepath.Join(src, "value.txt")
+	preserved := filepath.Join(src, "value-preserved.txt")
+	dst := filepath.Join(root, "destination")
+	mustWriteFile(t, file, []byte("original"), 0o644)
+
+	replaced := false
+	err := promoteDirectoryWithHooks(src, dst, renameDirectoryNoReplace, sourceTraversalHooks{
+		afterEntryInspect: func(path string) {
+			if replaced || path != file {
+				return
+			}
+			replaced = true
+			if err := os.Rename(file, preserved); err != nil {
+				t.Fatalf("Rename(inspected file) error = %v", err)
+			}
+			mustWriteFile(t, file, []byte("replacement"), 0o644)
+		},
+	})
+	if err == nil {
+		t.Fatal("promoteDirectoryWithHooks() error = nil, want file identity failure")
+	}
+	assertFileBytes(t, preserved, []byte("original"))
+	assertFileBytes(t, file, []byte("replacement"))
+	assertPathMissing(t, dst)
+	assertNoMatchingTempDirectories(t, root, ".destination.tmp-")
+}
+
+func TestPromoteDirectoryRejectsIdentityPreservingFileSymlinkReplacement(t *testing.T) {
+	root := t.TempDir()
+	src := filepath.Join(root, "source")
+	file := filepath.Join(src, "value.txt")
+	preserved := filepath.Join(src, "value-preserved.txt")
+	dst := filepath.Join(root, "destination")
+	mustWriteFile(t, file, []byte("original"), 0o644)
+
+	replaced := false
+	err := promoteDirectoryWithHooks(src, dst, renameDirectoryNoReplace, sourceTraversalHooks{
+		afterEntryInspect: func(path string) {
+			if replaced || path != file {
+				return
+			}
+			replaced = true
+			if err := os.Rename(file, preserved); err != nil {
+				t.Fatalf("Rename(inspected file) error = %v", err)
+			}
+			if err := os.Symlink(filepath.Base(preserved), file); err != nil {
+				t.Skipf("Symlink() unavailable: %v", err)
+			}
+		},
+	})
+	if err == nil {
+		t.Fatal("promoteDirectoryWithHooks() error = nil, want file symlink replacement failure")
+	}
+	assertFileBytes(t, preserved, []byte("original"))
+	assertPathIsSymlink(t, file)
+	assertPathMissing(t, dst)
+	assertNoMatchingTempDirectories(t, root, ".destination.tmp-")
+}
+
+func TestPromoteDirectoryRejectsInspectedDirectoryIdentityMismatch(t *testing.T) {
+	root := t.TempDir()
+	src := filepath.Join(root, "source")
+	child := filepath.Join(src, "child")
+	preserved := filepath.Join(src, "child-preserved")
+	dst := filepath.Join(root, "destination")
+	mustWriteFile(t, filepath.Join(child, "value.txt"), []byte("original"), 0o644)
+
+	replaced := false
+	err := promoteDirectoryWithHooks(src, dst, renameDirectoryNoReplace, sourceTraversalHooks{
+		afterEntryInspect: func(path string) {
+			if replaced || path != child {
+				return
+			}
+			replaced = true
+			if err := os.Rename(child, preserved); err != nil {
+				t.Fatalf("Rename(inspected directory) error = %v", err)
+			}
+			mustWriteFile(t, filepath.Join(child, "value.txt"), []byte("replacement"), 0o644)
+		},
+	})
+	if err == nil {
+		t.Fatal("promoteDirectoryWithHooks() error = nil, want directory identity failure")
+	}
+	assertFileBytes(t, filepath.Join(preserved, "value.txt"), []byte("original"))
+	assertFileBytes(t, filepath.Join(child, "value.txt"), []byte("replacement"))
+	assertPathMissing(t, dst)
+	assertNoMatchingTempDirectories(t, root, ".destination.tmp-")
+}
+
+func TestPromoteDirectoryRejectsIdentityPreservingDirectorySymlinkReplacement(t *testing.T) {
+	root := t.TempDir()
+	src := filepath.Join(root, "source")
+	child := filepath.Join(src, "child")
+	preserved := filepath.Join(src, "child-preserved")
+	dst := filepath.Join(root, "destination")
+	mustWriteFile(t, filepath.Join(child, "value.txt"), []byte("original"), 0o644)
+
+	replaced := false
+	err := promoteDirectoryWithHooks(src, dst, renameDirectoryNoReplace, sourceTraversalHooks{
+		afterEntryInspect: func(path string) {
+			if replaced || path != child {
+				return
+			}
+			replaced = true
+			if err := os.Rename(child, preserved); err != nil {
+				t.Fatalf("Rename(inspected directory) error = %v", err)
+			}
+			if err := os.Symlink(filepath.Base(preserved), child); err != nil {
+				t.Skipf("Symlink() unavailable: %v", err)
+			}
+		},
+	})
+	if err == nil {
+		t.Fatal("promoteDirectoryWithHooks() error = nil, want directory symlink replacement failure")
+	}
+	assertFileBytes(t, filepath.Join(preserved, "value.txt"), []byte("original"))
+	assertPathIsSymlink(t, child)
+	assertPathMissing(t, dst)
+	assertNoMatchingTempDirectories(t, root, ".destination.tmp-")
+}
+
+func TestPromoteDirectoryDoesNotReplaceDestinationCreatedBeforeInstall(t *testing.T) {
+	root := t.TempDir()
+	src := filepath.Join(root, "source")
+	dst := filepath.Join(root, "destination")
+	mustWriteFile(t, filepath.Join(src, "value.txt"), []byte("source"), 0o644)
+
+	err := promoteDirectory(src, dst, func(temporary, destination string) error {
+		if err := os.Mkdir(destination, 0o755); err != nil {
+			t.Fatalf("Mkdir(concurrent destination) error = %v", err)
+		}
+		mustWriteFile(t, filepath.Join(destination, "value.txt"), []byte("concurrent"), 0o644)
+		return renameDirectoryNoReplace(temporary, destination)
+	})
+	if err == nil {
+		t.Fatal("promoteDirectory() error = nil, want no-replace install failure")
+	}
+	assertFileBytes(t, filepath.Join(dst, "value.txt"), []byte("concurrent"))
+	assertFileBytes(t, filepath.Join(src, "value.txt"), []byte("source"))
+	assertNoMatchingTempDirectories(t, root, ".destination.tmp-")
+}
+
+func TestPromoteDirectoryRejectsDestinationInsideSource(t *testing.T) {
+	root := t.TempDir()
+	src := filepath.Join(root, "source")
+	dst := filepath.Join(src, "nested", "destination")
+	if err := os.MkdirAll(filepath.Dir(dst), 0o755); err != nil {
+		t.Fatalf("MkdirAll(destination parent) error = %v", err)
+	}
+
+	if err := PromoteDirectory(src, dst); err == nil {
+		t.Fatal("PromoteDirectory() error = nil, want nested destination rejection")
+	}
+	if _, err := os.Lstat(dst); !os.IsNotExist(err) {
+		t.Fatalf("Lstat(destination) error = %v, want not exist", err)
+	}
+}
+
+func mustWriteFile(t *testing.T, path string, data []byte, mode os.FileMode) {
+	t.Helper()
+	if err := os.MkdirAll(filepath.Dir(path), 0o755); err != nil {
+		t.Fatalf("MkdirAll(%q) error = %v", filepath.Dir(path), err)
+	}
+	if err := os.WriteFile(path, data, mode); err != nil {
+		t.Fatalf("WriteFile(%q) error = %v", path, err)
+	}
+}
+
+func assertFileBytes(t *testing.T, path string, want []byte) {
+	t.Helper()
+	got, err := os.ReadFile(path)
+	if err != nil {
+		t.Fatalf("ReadFile(%q) error = %v", path, err)
+	}
+	if !bytes.Equal(got, want) {
+		t.Fatalf("ReadFile(%q) = %v, want %v", path, got, want)
+	}
+}
+
+func assertPathMissing(t *testing.T, path string) {
+	t.Helper()
+	if _, err := os.Lstat(path); !os.IsNotExist(err) {
+		t.Fatalf("Lstat(%q) error = %v, want not exist", path, err)
+	}
+}
+
+func assertPathIsSymlink(t *testing.T, path string) {
+	t.Helper()
+	info, err := os.Lstat(path)
+	if err != nil || info.Mode()&os.ModeSymlink == 0 {
+		t.Fatalf("Lstat(%q) info = %v, error = %v, want symlink", path, info, err)
+	}
+}
+
+func treeLayout(t *testing.T, root string) []string {
+	t.Helper()
+	var layout []string
+	err := filepath.WalkDir(root, func(path string, _ os.DirEntry, err error) error {
+		if err != nil {
+			return err
+		}
+		relative, err := filepath.Rel(root, path)
+		if err != nil {
+			return err
+		}
+		layout = append(layout, filepath.ToSlash(relative))
+		return nil
+	})
+	if err != nil {
+		t.Fatalf("WalkDir(%q) error = %v", root, err)
+	}
+	return layout
+}
+
+func assertNoMatchingTempDirectories(t *testing.T, parent, prefix string) {
+	t.Helper()
+	entries, err := os.ReadDir(parent)
+	if err != nil {
+		t.Fatalf("ReadDir(%q) error = %v", parent, err)
+	}
+	for _, entry := range entries {
+		if strings.HasPrefix(entry.Name(), prefix) {
+			t.Fatalf("unexpected temporary directory residue: %s", filepath.Join(parent, entry.Name()))
+		}
+	}
+}

internal/fileops/directory_unsupported_test.go

@@ -0,0 +1,37 @@
+//go:build !linux && !darwin && !windows
+
+package fileops
+
+import (
+	"errors"
+	"os"
+	"path/filepath"
+	"strings"
+	"testing"
+)
+
+func TestPromoteDirectoryFailsBeforeCreatingTemporaryTree(t *testing.T) {
+	root := t.TempDir()
+	src := filepath.Join(root, "source")
+	dst := filepath.Join(root, "destination")
+	if err := os.Mkdir(src, 0o755); err != nil {
+		t.Fatalf("Mkdir(source) error = %v", err)
+	}
+	if err := os.WriteFile(filepath.Join(src, "value.txt"), []byte("source"), 0o644); err != nil {
+		t.Fatalf("WriteFile(source) error = %v", err)
+	}
+
+	err := PromoteDirectory(src, dst)
+	if !errors.Is(err, ErrAtomicDirectoryPromotionUnsupported) {
+		t.Fatalf("PromoteDirectory() error = %v, want unsupported capability", err)
+	}
+	entries, readErr := os.ReadDir(root)
+	if readErr != nil {
+		t.Fatalf("ReadDir(root) error = %v", readErr)
+	}
+	for _, entry := range entries {
+		if entry.Name() == filepath.Base(dst) || strings.HasPrefix(entry.Name(), ".destination.tmp-") {
+			t.Fatalf("unsupported promotion created %q", entry.Name())
+		}
+	}
+}

internal/fileops/rename_noreplace_darwin.go

@@ -0,0 +1,11 @@
+//go:build darwin
+
+package fileops
+
+import "golang.org/x/sys/unix"
+
+func checkAtomicDirectoryPromotionSupport() error { return nil }
+
+func renameDirectoryNoReplace(src, dst string) error {
+	return unix.RenamexNp(src, dst, unix.RENAME_EXCL)
+}

internal/fileops/rename_noreplace_linux.go

@@ -0,0 +1,11 @@
+//go:build linux
+
+package fileops
+
+import "golang.org/x/sys/unix"
+
+func checkAtomicDirectoryPromotionSupport() error { return nil }
+
+func renameDirectoryNoReplace(src, dst string) error {
+	return unix.Renameat2(unix.AT_FDCWD, src, unix.AT_FDCWD, dst, unix.RENAME_NOREPLACE)
+}

internal/fileops/rename_noreplace_other.go

@@ -0,0 +1,16 @@
+//go:build !linux && !darwin && !windows
+
+package fileops
+
+import (
+	"fmt"
+	"runtime"
+)
+
+func checkAtomicDirectoryPromotionSupport() error {
+	return fmt.Errorf("%w on %s", ErrAtomicDirectoryPromotionUnsupported, runtime.GOOS)
+}
+
+func renameDirectoryNoReplace(_, _ string) error {
+	return checkAtomicDirectoryPromotionSupport()
+}

internal/fileops/rename_noreplace_supported_test.go

@@ -0,0 +1,26 @@
+//go:build linux || darwin || windows
+
+package fileops
+
+import (
+	"os"
+	"path/filepath"
+	"testing"
+)
+
+func TestRenameDirectoryNoReplacePreservesExistingDestination(t *testing.T) {
+	root := t.TempDir()
+	src := filepath.Join(root, "source")
+	dst := filepath.Join(root, "destination")
+	mustWriteFile(t, filepath.Join(src, "value.txt"), []byte("source"), 0o644)
+	mustWriteFile(t, filepath.Join(dst, "value.txt"), []byte("existing"), 0o644)
+
+	if err := renameDirectoryNoReplace(src, dst); err == nil {
+		t.Fatal("renameDirectoryNoReplace() error = nil, want existing destination failure")
+	}
+	assertFileBytes(t, filepath.Join(src, "value.txt"), []byte("source"))
+	assertFileBytes(t, filepath.Join(dst, "value.txt"), []byte("existing"))
+	if info, err := os.Stat(src); err != nil || !info.IsDir() {
+		t.Fatalf("source directory was not preserved: info=%v err=%v", info, err)
+	}
+}

internal/fileops/rename_noreplace_windows.go

@@ -0,0 +1,19 @@
+//go:build windows
+
+package fileops
+
+import "golang.org/x/sys/windows"
+
+func checkAtomicDirectoryPromotionSupport() error { return nil }
+
+func renameDirectoryNoReplace(src, dst string) error {
+	from, err := windows.UTF16PtrFromString(src)
+	if err != nil {
+		return err
+	}
+	to, err := windows.UTF16PtrFromString(dst)
+	if err != nil {
+		return err
+	}
+	return windows.MoveFileEx(from, to, 0)
+}

internal/fileops/sync_directory_unix.go

@@ -0,0 +1,25 @@
+//go:build linux || darwin
+
+package fileops
+
+import (
+	"errors"
+	"os"
+	"syscall"
+)
+
+func syncDirectory(path string) error {
+	directory, err := os.Open(path)
+	if err != nil {
+		return err
+	}
+	defer func() { _ = directory.Close() }()
+
+	err = directory.Sync()
+	// Some Unix filesystems do not implement directory syncing. Only their
+	// explicit unsupported-operation errors are safe to treat as best effort.
+	if errors.Is(err, syscall.EINVAL) || errors.Is(err, syscall.ENOTSUP) {
+		return nil
+	}
+	return err
+}

internal/fileops/sync_directory_unsupported.go

@@ -0,0 +1,7 @@
+//go:build !linux && !darwin && !windows
+
+package fileops
+
+func syncDirectory(string) error {
+	return checkAtomicDirectoryPromotionSupport()
+}

internal/fileops/sync_directory_windows.go

@@ -0,0 +1,40 @@
+//go:build windows
+
+package fileops
+
+import (
+	"errors"
+
+	"golang.org/x/sys/windows"
+)
+
+func syncDirectory(path string) error {
+	pathPointer, err := windows.UTF16PtrFromString(path)
+	if err != nil {
+		return err
+	}
+	directory, err := windows.CreateFile(
+		pathPointer,
+		windows.GENERIC_WRITE,
+		windows.FILE_SHARE_READ|windows.FILE_SHARE_WRITE|windows.FILE_SHARE_DELETE,
+		nil,
+		windows.OPEN_EXISTING,
+		windows.FILE_FLAG_BACKUP_SEMANTICS,
+		0,
+	)
+	if err != nil {
+		return err
+	}
+	defer func() { _ = windows.CloseHandle(directory) }()
+
+	err = windows.FlushFileBuffers(directory)
+	// Windows filesystems may reject flushing a directory handle even when it
+	// was opened correctly. Preserve every error except the documented forms
+	// that mean this operation is unavailable for the handle or filesystem.
+	if errors.Is(err, windows.ERROR_INVALID_FUNCTION) ||
+		errors.Is(err, windows.ERROR_INVALID_HANDLE) ||
+		errors.Is(err, windows.ERROR_NOT_SUPPORTED) {
+		return nil
+	}
+	return err
+}

internal/manifest/manifest.go

@@ -3,6 +3,8 @@ package manifest
 import (
 	"strings"
 	"time"
+
+	"gitea.maximumdirect.net/eric/narratio/internal/artifactmodel"
 )
 
 // ErrorRecord captures structured error metadata at run or stage scope.
@@ -28,9 +30,11 @@ type InputRecord struct {
 
 // ArtifactRecord captures one produced artifact and optional remote metadata.
 type ArtifactRecord struct {
-	Kind      string `json:"kind"`
-	SourceID  string `json:"source_id,omitempty"`
-	LocalPath string `json:"local_path"`
+	Kind               string                            `json:"kind"`
+	SourceID           string                            `json:"source_id,omitempty"`
+	LocalPath          string                            `json:"local_path"`
+	Contract           *artifactmodel.ContractMetadata   `json:"contract,omitempty"`
+	ExternalProvenance *artifactmodel.ExternalProvenance `json:"external_provenance,omitempty"`
 	// ProducerRunID identifies the run that produced this durable artifact.
 	ProducerRunID string `json:"producer_run_id,omitempty"`
 	RemoteKey     string `json:"remote_key,omitempty"`
@@ -84,6 +88,7 @@ func New(sessionID string, now time.Time) *Manifest {
 // MarkStageRunning marks a stage as running and updates timestamps.
 func (m *Manifest) MarkStageRunning(name string, at time.Time) {
 	s := m.ensureStage(name, at)
+	s.clearResultDetails()
 	s.Status = StatusRunning
 	s.StartedAt = timePtr(at)
 	s.CompletedAt = nil
@@ -106,6 +111,7 @@ func (m *Manifest) MarkStageSucceeded(name string, at time.Time, outputs []Artif
 // MarkStageFailed marks a stage as failed and records error metadata.
 func (m *Manifest) MarkStageFailed(name string, at time.Time, message string) {
 	s := m.ensureStage(name, at)
+	s.clearResultDetails()
 	s.Status = StatusFailed
 	s.CompletedAt = timePtr(at)
 	s.Error = &ErrorRecord{Message: strings.TrimSpace(message), At: timePtr(at)}
@@ -117,6 +123,7 @@ func (m *Manifest) MarkStageFailed(name string, at time.Time, message string) {
 // MarkStageSkipped marks a stage as skipped and records the skip reason.
 func (m *Manifest) MarkStageSkipped(name string, at time.Time, reason string) {
 	s := m.ensureStage(name, at)
+	s.clearResultDetails()
 	s.Status = StatusSkipped
 	s.CompletedAt = timePtr(at)
 	s.Error = &ErrorRecord{Message: strings.TrimSpace(reason), Code: "skipped", At: timePtr(at)}
@@ -133,6 +140,13 @@ func (m *Manifest) MarkStageStale(name string, at time.Time, reason string) {
 	m.UpdatedAt = at
 }
 
+func (s *StageRecord) clearResultDetails() {
+	s.Outputs = nil
+	s.Logs = nil
+	s.GeneratedConfigs = nil
+	s.Metadata = nil
+}
+
 func (m *Manifest) ensureStage(name string, at time.Time) *StageRecord {
 	if m.Stages == nil {
 		m.Stages = map[string]*StageRecord{}

internal/manifest/manifest_test.go

@@ -69,11 +69,12 @@ func TestStageMarkHelpers(t *testing.T) {
 	}
 }
 
-func TestMarkStageRunningClearsPriorCompletionAndError(t *testing.T) {
+func TestMarkStageRunningClearsPriorCompletionErrorAndResultDetails(t *testing.T) {
 	m := New("2026-05-03", time.Date(2026, 5, 3, 10, 0, 0, 0, time.UTC))
 
 	failedAt := time.Date(2026, 5, 3, 10, 1, 0, 0, time.UTC)
 	m.MarkStageFailed("merge", failedAt, "boom")
+	setStageResultDetails(m.Stages["merge"])
 
 	runAt := failedAt.Add(1 * time.Minute)
 	m.MarkStageRunning("merge", runAt)
@@ -91,6 +92,7 @@ func TestMarkStageRunningClearsPriorCompletionAndError(t *testing.T) {
 	if stage.Error != nil {
 		t.Fatalf("error = %#v, want nil while running", stage.Error)
 	}
+	requireStageResultDetailsCleared(t, stage)
 }
 
 func TestMarkStageSucceededClearsError(t *testing.T) {
@@ -110,3 +112,68 @@ func TestMarkStageSucceededClearsError(t *testing.T) {
 		t.Fatalf("error = %#v, want nil on success", stage.Error)
 	}
 }
+
+func TestMarkStageFailedClearsEarlierResultDetails(t *testing.T) {
+	m := New("2026-05-03", time.Date(2026, 5, 3, 10, 0, 0, 0, time.UTC))
+	m.MarkStageSucceeded("extract", time.Date(2026, 5, 3, 10, 1, 0, 0, time.UTC), nil)
+	setStageResultDetails(m.Stages["extract"])
+
+	m.MarkStageFailed("extract", time.Date(2026, 5, 3, 10, 2, 0, 0, time.UTC), "replacement failed")
+
+	stage := m.Stages["extract"]
+	if stage == nil || stage.Status != StatusFailed {
+		t.Fatalf("stage = %#v, want failed", stage)
+	}
+	requireStageResultDetailsCleared(t, stage)
+}
+
+func TestMarkStageSkippedClearsEarlierResultDetails(t *testing.T) {
+	m := New("2026-05-03", time.Date(2026, 5, 3, 10, 0, 0, 0, time.UTC))
+	m.MarkStageSucceeded("extract", time.Date(2026, 5, 3, 10, 1, 0, 0, time.UTC), nil)
+	setStageResultDetails(m.Stages["extract"])
+
+	m.MarkStageSkipped("extract", time.Date(2026, 5, 3, 10, 2, 0, 0, time.UTC), "integration_disabled")
+
+	stage := m.Stages["extract"]
+	if stage == nil {
+		t.Fatal("missing stage record")
+	}
+	if stage.Status != StatusSkipped {
+		t.Fatalf("status = %q, want %q", stage.Status, StatusSkipped)
+	}
+	requireStageResultDetailsCleared(t, stage)
+}
+
+func TestMarkStageStalePreservesResultDetails(t *testing.T) {
+	m := New("2026-05-03", time.Date(2026, 5, 3, 10, 0, 0, 0, time.UTC))
+	m.MarkStageSucceeded("extract", time.Date(2026, 5, 3, 10, 1, 0, 0, time.UTC), nil)
+	stage := m.Stages["extract"]
+	setStageResultDetails(stage)
+
+	m.MarkStageStale("extract", time.Date(2026, 5, 3, 10, 2, 0, 0, time.UTC), "result is not resumable")
+
+	if stage.Status != StatusStale {
+		t.Fatalf("status = %q, want %q", stage.Status, StatusStale)
+	}
+	if len(stage.Outputs) != 1 || len(stage.Logs) != 1 || len(stage.GeneratedConfigs) != 1 || len(stage.Metadata) != 1 {
+		t.Fatalf("result details were not preserved: %#v", stage)
+	}
+}
+
+func setStageResultDetails(stage *StageRecord) {
+	stage.Outputs = []ArtifactRecord{{
+		Kind:      "structured_data",
+		SourceID:  "narratio.example.characters",
+		LocalPath: "artifacts/characters.json",
+	}}
+	stage.Logs = []string{"logs/extract.log"}
+	stage.GeneratedConfigs = []string{"generated/extract.yaml"}
+	stage.Metadata = map[string]any{"bundle_path": "extract/results/run-1"}
+}
+
+func requireStageResultDetailsCleared(t *testing.T, stage *StageRecord) {
+	t.Helper()
+	if len(stage.Outputs) != 0 || len(stage.Logs) != 0 || len(stage.GeneratedConfigs) != 0 || len(stage.Metadata) != 0 {
+		t.Fatalf("result details were not cleared: %#v", stage)
+	}
+}

internal/manifest/run_manifest.go

@@ -119,6 +119,7 @@ func (m *RunManifest) MarkStageSkipped(name string, at time.Time, reason string)
 	s.Status = StatusSkipped
 	s.CompletedAt = timePtr(at)
 	s.Error = &ErrorRecord{Message: strings.TrimSpace(reason), Code: "skipped", At: timePtr(at)}
+	s.Outputs = nil
 	s.UpdatedAt = at
 	m.UpdatedAt = at
 }

internal/manifest/store_test.go

@@ -8,6 +8,8 @@ import (
 	"strings"
 	"testing"
 	"time"
+
+	"gitea.maximumdirect.net/eric/narratio/internal/artifactmodel"
 )
 
 func TestLocalStoreCreateSaveLoadRoundTrip(t *testing.T) {
@@ -64,6 +66,76 @@ func TestLocalStoreCreateSaveLoadRoundTrip(t *testing.T) {
 	}
 }
 
+func TestLocalStoreArtifactMetadataCompatibility(t *testing.T) {
+	store := &LocalStore{}
+	ctx := context.Background()
+	dir := t.TempDir()
+	oldPath := filepath.Join(dir, "old-manifest.json")
+	oldJSON := `{
+  "session_id": "2026-05-03",
+  "created_at": "2026-05-03T10:00:00Z",
+  "updated_at": "2026-05-03T10:01:00Z",
+  "stages": {
+    "analyze": {
+      "name": "analyze",
+      "status": "succeeded",
+      "created_at": "2026-05-03T10:00:00Z",
+      "updated_at": "2026-05-03T10:01:00Z",
+      "outputs": [{"kind":"scriptorium_artifact","local_path":"artifacts/recap.md"}]
+    }
+  }
+}`
+	if err := os.WriteFile(oldPath, []byte(oldJSON), 0o644); err != nil {
+		t.Fatalf("WriteFile() old manifest error = %v", err)
+	}
+
+	loaded, err := store.Load(ctx, oldPath)
+	if err != nil {
+		t.Fatalf("Load() old manifest error = %v", err)
+	}
+	oldOutput := loaded.Stages["analyze"].Outputs[0]
+	if oldOutput.Contract != nil || oldOutput.ExternalProvenance != nil {
+		t.Fatalf("old output metadata = %#v, %#v; want nil", oldOutput.Contract, oldOutput.ExternalProvenance)
+	}
+	if err := store.Save(ctx, oldPath, loaded); err != nil {
+		t.Fatalf("Save() old manifest error = %v", err)
+	}
+	roundTripped, err := os.ReadFile(oldPath)
+	if err != nil {
+		t.Fatalf("ReadFile() round-tripped old manifest error = %v", err)
+	}
+	if strings.Contains(string(roundTripped), `"contract"`) || strings.Contains(string(roundTripped), `"external_provenance"`) {
+		t.Fatalf("old manifest gained fabricated metadata:\n%s", roundTripped)
+	}
+
+	loaded.Stages["analyze"].Outputs[0].Contract = &artifactmodel.ContractMetadata{
+		MediaType:     "application/json",
+		SchemaID:      "example.recap",
+		SchemaVersion: "v1",
+	}
+	loaded.Stages["analyze"].Outputs[0].ExternalProvenance = &artifactmodel.ExternalProvenance{
+		System:     "example",
+		RunID:      "external-run",
+		PipelineID: "pipeline",
+		ArtifactID: "recap",
+	}
+	metadataPath := filepath.Join(dir, "metadata-manifest.json")
+	if err := store.Save(ctx, metadataPath, loaded); err != nil {
+		t.Fatalf("Save() metadata manifest error = %v", err)
+	}
+	withMetadata, err := store.Load(ctx, metadataPath)
+	if err != nil {
+		t.Fatalf("Load() metadata manifest error = %v", err)
+	}
+	got := withMetadata.Stages["analyze"].Outputs[0]
+	if got.Contract == nil || got.Contract.SchemaID != "example.recap" {
+		t.Fatalf("contract = %#v, want persisted contract", got.Contract)
+	}
+	if got.ExternalProvenance == nil || got.ExternalProvenance.RunID != "external-run" {
+		t.Fatalf("external provenance = %#v, want persisted provenance", got.ExternalProvenance)
+	}
+}
+
 func TestLocalStoreSaveUpdatesTimestamp(t *testing.T) {
 	store := &LocalStore{}
 	ctx := context.Background()

internal/stage/analyze.go

@@ -84,7 +84,13 @@ func (analyzeStage) Run(ctx context.Context, env *Env, m *manifest.Manifest) (*S
 		}}, nil
 	}
 
-	runtimeCatalog, err := buildAnalyzeRuntimeArtifactCatalog(paths, env.Config.Pipeline.Scriptorium, env.SelectedArtifactKeys)
+	runtimeCatalog, err := buildAnalyzeRuntimeArtifactCatalog(
+		paths,
+		m,
+		env.Config.Pipeline.Scriptorium,
+		env.Config.Pipeline.Notarius,
+		env.SelectedArtifactKeys,
+	)
 	if err != nil {
 		return nil, fmt.Errorf("analyze: build runtime artifact catalog: %w", err)
 	}
@@ -668,6 +674,16 @@ func resolveScriptoriumInput(
 			return resolved.Path, true, &copy, nil
 		}
 		if errors.Is(err, artifacts.ErrSessionArtifactNotFound) {
+			if descriptor.Source.Kind == artifactpolicy.SourceKindExtraction {
+				if inputCfg.Required {
+					return "", false, nil, fmt.Errorf(
+						"required extraction source %q is unavailable; enable and configure pipeline.notarius output %q, then rerun extract with --force",
+						source,
+						descriptor.Source.ConfiguredKey,
+					)
+				}
+				return "", false, nil, nil
+			}
 			if descriptor.Source.Kind == artifactpolicy.SourceKindConfiguredArtifact {
 				if inputCfg.Required {
 					return "", false, nil, fmt.Errorf("configured artifact source %q is unavailable", source)
@@ -727,13 +743,22 @@ func preparedStableInputFilename(sourceID string) (string, bool) {
 
 func buildAnalyzeRuntimeArtifactCatalog(
 	paths artifacts.SessionPaths,
+	m *manifest.Manifest,
 	scriptoriumCfg *config.ScriptoriumConfig,
+	notariusCfg *config.NotariusConfig,
 	selectedArtifacts []string,
 ) (*artifacts.ArtifactCatalog, error) {
 	catalog := artifacts.NewArtifactCatalog()
 	if err := catalog.RegisterBuiltIns(); err != nil {
 		return nil, err
 	}
+	extractionDefinitions := artifacts.ExtractionDefinitionsFromConfig(notariusCfg)
+	if err := catalog.RegisterExtractionArtifacts(extractionDefinitions); err != nil {
+		return nil, err
+	}
+	if notariusCfg != nil && notariusCfg.Enabled {
+		catalog.HydrateExtractionArtifacts(paths, m, extractionDefinitions)
+	}
 	if scriptoriumCfg == nil {
 		return catalog, nil
 	}

internal/stage/analyze_test.go

@@ -5,12 +5,14 @@ import (
 	"errors"
 	"os"
 	"path/filepath"
+	"sort"
 	"strings"
 	"testing"
 	"time"
 
 	"gitea.maximumdirect.net/eric/narratio/internal/adapters/scriptorium"
 	"gitea.maximumdirect.net/eric/narratio/internal/adapters/storage"
+	"gitea.maximumdirect.net/eric/narratio/internal/artifactmodel"
 	"gitea.maximumdirect.net/eric/narratio/internal/artifacts"
 	"gitea.maximumdirect.net/eric/narratio/internal/config"
 	"gitea.maximumdirect.net/eric/narratio/internal/manifest"
@@ -1358,6 +1360,149 @@ func TestAnalyzeSkipsWhenArtifactMapEmpty(t *testing.T) {
 	}
 }
 
+func TestAnalyzePassesOnlyExplicitExtractionInputsToSelectedArtifact(t *testing.T) {
+	env, m, fake := setupAnalyzeEnv(t)
+	paths := sessionPathsForEnv(env, m.SessionID)
+	writeAnalyzeFile(t, filepath.Join(paths.TranscriptsDir, "final.trimmed.json"), `{"segments":[]}`)
+	extractionPaths := configureAnalyzeExtractionFixture(t, env, m)
+
+	artifact := env.Config.Pipeline.Scriptorium.Artifacts["session_recap"]
+	artifact.Inputs["encounters"] = config.ScriptoriumInputConfig{
+		Source: artifacts.ExtractionArtifactSourceID("encounters"), Required: true,
+	}
+	env.Config.Pipeline.Scriptorium.Artifacts["session_recap"] = artifact
+	env.SelectedArtifactKeys = []string{"session_recap"}
+	tracker := &analyzeObjectStoreTracker{}
+	env.ObjectStore = tracker
+
+	if _, err := (analyzeStage{}).Run(context.Background(), env, m); err != nil {
+		t.Fatalf("Run() error = %v", err)
+	}
+	if len(fake.RunRequests) != 1 {
+		t.Fatalf("run requests = %d, want 1", len(fake.RunRequests))
+	}
+	inputs := fake.RunRequests[0].InputPaths
+	if inputs["encounters"] != extractionPaths["encounters"] {
+		t.Fatalf("encounters input = %q, want %q", inputs["encounters"], extractionPaths["encounters"])
+	}
+	if _, exists := inputs["characters"]; exists {
+		t.Fatalf("unconfigured extraction input was added: %#v", inputs)
+	}
+	if len(inputs) != 2 {
+		t.Fatalf("input paths = %#v, want transcript plus explicit encounters", inputs)
+	}
+	if tracker.called {
+		t.Fatal("analyze extraction resolution called the object store")
+	}
+}
+
+func TestAnalyzeRequiredUnavailableExtractionFailsWithGuidance(t *testing.T) {
+	env, m, fake := setupAnalyzeEnv(t)
+	paths := sessionPathsForEnv(env, m.SessionID)
+	writeAnalyzeFile(t, filepath.Join(paths.TranscriptsDir, "final.trimmed.json"), `{"segments":[]}`)
+	configureAnalyzeExtraction(t, env)
+	artifact := env.Config.Pipeline.Scriptorium.Artifacts["session_recap"]
+	artifact.Inputs["encounters"] = config.ScriptoriumInputConfig{
+		Source: artifacts.ExtractionArtifactSourceID("encounters"), Required: true,
+	}
+	env.Config.Pipeline.Scriptorium.Artifacts["session_recap"] = artifact
+
+	_, err := (analyzeStage{}).Run(context.Background(), env, m)
+	if err == nil || !strings.Contains(err.Error(), "pipeline.notarius output \"encounters\"") || !strings.Contains(err.Error(), "rerun extract with --force") {
+		t.Fatalf("Run() error = %v, want actionable extraction guidance", err)
+	}
+	if len(fake.RunRequests) != 0 {
+		t.Fatalf("run requests = %d, want 0", len(fake.RunRequests))
+	}
+}
+
+func TestAnalyzeOmitsOptionalUnavailableExtraction(t *testing.T) {
+	env, m, fake := setupAnalyzeEnv(t)
+	paths := sessionPathsForEnv(env, m.SessionID)
+	writeAnalyzeFile(t, filepath.Join(paths.TranscriptsDir, "final.trimmed.json"), `{"segments":[]}`)
+	configureAnalyzeExtraction(t, env)
+	artifact := env.Config.Pipeline.Scriptorium.Artifacts["session_recap"]
+	artifact.Inputs["encounters"] = config.ScriptoriumInputConfig{
+		Source: artifacts.ExtractionArtifactSourceID("encounters"), Required: false,
+	}
+	env.Config.Pipeline.Scriptorium.Artifacts["session_recap"] = artifact
+
+	if _, err := (analyzeStage{}).Run(context.Background(), env, m); err != nil {
+		t.Fatalf("Run() error = %v", err)
+	}
+	if len(fake.RunRequests) != 1 {
+		t.Fatalf("run requests = %d, want 1", len(fake.RunRequests))
+	}
+	if _, exists := fake.RunRequests[0].InputPaths["encounters"]; exists {
+		t.Fatalf("optional unavailable extraction was passed: %#v", fake.RunRequests[0].InputPaths)
+	}
+}
+
+func configureAnalyzeExtraction(t *testing.T, env *Env) {
+	t.Helper()
+	env.Config.Pipeline.Notarius = &config.NotariusConfig{
+		Enabled: true, PipelineID: "campaign.extract",
+		Outputs: map[string]config.NotariusOutputConfig{
+			"characters": {LaneID: "characters", MediaType: "application/json", SchemaID: "characters", SchemaVersion: "1"},
+			"encounters": {LaneID: "encounters", MediaType: "application/json", SchemaID: "encounters", SchemaVersion: "1", ModuleKey: "encounters"},
+		},
+	}
+}
+
+func configureAnalyzeExtractionFixture(t *testing.T, env *Env, m *manifest.Manifest) map[string]string {
+	t.Helper()
+	configureAnalyzeExtraction(t, env)
+	paths := sessionPathsForEnv(env, m.SessionID)
+	producerRunID := "extract-run-1"
+	bundleRoot := filepath.Join(paths.ArtifactsDir, "notarius", producerRunID)
+	keys := make([]string, 0, len(env.Config.Pipeline.Notarius.Outputs))
+	for key := range env.Config.Pipeline.Notarius.Outputs {
+		keys = append(keys, key)
+	}
+	sort.Strings(keys)
+
+	outputPaths := make(map[string]string, len(keys))
+	outputs := make([]manifest.ArtifactRecord, 0, len(keys)+1)
+	for _, key := range keys {
+		definition := env.Config.Pipeline.Notarius.Outputs[key]
+		outputPath := filepath.Join(bundleRoot, "lanes", key+".json")
+		writeAnalyzeFile(t, outputPath, `{"items":[]}`)
+		checksum, err := artifacts.SHA256File(outputPath)
+		if err != nil {
+			t.Fatal(err)
+		}
+		outputPaths[key] = outputPath
+		outputs = append(outputs, manifest.ArtifactRecord{
+			Kind: "notarius_lane", SourceID: artifacts.ExtractionArtifactSourceID(key), LocalPath: outputPath,
+			ProducerRunID: producerRunID, Checksum: checksum,
+			Contract: &artifactmodel.ContractMetadata{
+				MediaType: definition.MediaType, SchemaID: definition.SchemaID,
+				SchemaVersion: definition.SchemaVersion, ModuleKey: definition.ModuleKey,
+			},
+			ExternalProvenance: &artifactmodel.ExternalProvenance{
+				System: "notarius", RunID: "notarius-run-1", PipelineID: "campaign.extract", ArtifactID: definition.LaneID,
+			},
+		})
+	}
+	indexPath := filepath.Join(bundleRoot, "index.json")
+	writeAnalyzeFile(t, indexPath, `{"lanes":[]}`)
+	indexChecksum, err := artifacts.SHA256File(indexPath)
+	if err != nil {
+		t.Fatal(err)
+	}
+	outputs = append(outputs, manifest.ArtifactRecord{
+		Kind: "notarius_index", LocalPath: indexPath, ProducerRunID: producerRunID, Checksum: indexChecksum,
+	})
+	m.Stages["extract"] = &manifest.StageRecord{
+		Name: "extract", Status: manifest.StatusSucceeded, Outputs: outputs,
+		Metadata: map[string]any{
+			"narratio_run_id": producerRunID, "bundle_root": bundleRoot,
+			"receipt": map[string]any{"run_id": "notarius-run-1", "pipeline_id": "campaign.extract"},
+		},
+	}
+	return outputPaths
+}
+
 func setupAnalyzeEnv(t *testing.T) (*Env, *manifest.Manifest, *scriptorium.FakeRunner) {
 	t.Helper()
 	workspace := t.TempDir()

internal/stage/extract.go

@@ -0,0 +1,462 @@
+package stage
+
+import (
+	"context"
+	"crypto/sha256"
+	"encoding/hex"
+	"encoding/json"
+	"fmt"
+	"os"
+	"os/exec"
+	"path/filepath"
+	"sort"
+	"strings"
+	"time"
+
+	"gitea.maximumdirect.net/eric/narratio/internal/adapters/notarius"
+	"gitea.maximumdirect.net/eric/narratio/internal/artifactmodel"
+	"gitea.maximumdirect.net/eric/narratio/internal/artifacts"
+	"gitea.maximumdirect.net/eric/narratio/internal/config"
+	"gitea.maximumdirect.net/eric/narratio/internal/fileops"
+	"gitea.maximumdirect.net/eric/narratio/internal/manifest"
+	"gitea.maximumdirect.net/eric/narratio/internal/pathsafe"
+)
+
+const (
+	extractSkipReason      = "notarius_disabled"
+	extractLaneOutputKind  = "notarius_lane"
+	extractIndexOutputKind = "notarius_index"
+	maxDiagnosticSummaries = 100
+)
+
+type extractStage struct{}
+
+func (extractStage) Name() string { return "extract" }
+
+func (extractStage) Declares() IODecl {
+	return IODecl{
+		Inputs: []artifacts.Ref{{
+			Kind:         artifactmodel.TranscriptOutputKindFinalTrimmed,
+			SourceID:     artifactmodel.SourceTranscriptFinalTrimmed,
+			Category:     "transcripts",
+			RelativePath: artifactmodel.TranscriptPathFinalTrimmed,
+		}},
+		Outputs: []artifacts.Ref{
+			{Kind: extractLaneOutputKind, Category: "artifacts", RelativePath: "artifacts/notarius/<run-id>/lanes/*.json"},
+			{Kind: extractIndexOutputKind, Category: "artifacts", RelativePath: "artifacts/notarius/<run-id>/index.json"},
+		},
+	}
+}
+
+func (extractStage) Run(ctx context.Context, env *Env, m *manifest.Manifest) (*StageResult, error) {
+	if env == nil || env.Config == nil || env.Config.Pipeline == nil || env.Config.Session == nil {
+		return nil, fmt.Errorf("extract: resolved stage environment config is required")
+	}
+	notariusConfig := env.Config.Pipeline.Notarius
+	if notariusConfig == nil || !notariusConfig.Enabled {
+		return &StageResult{
+			Disposition: StageDispositionSkipped,
+			SkipReason:  extractSkipReason,
+			Metadata: map[string]any{
+				"stage":            "extract",
+				"notarius_enabled": false,
+				"reason":           extractSkipReason,
+			},
+		}, nil
+	}
+	if env.ArtifactStore == nil {
+		return nil, fmt.Errorf("extract: artifact store is required")
+	}
+	if env.Notarius == nil {
+		return nil, fmt.Errorf("extract: notarius adapter is required")
+	}
+	if m == nil {
+		return nil, fmt.Errorf("extract: session manifest is required")
+	}
+
+	sessionID := strings.TrimSpace(m.SessionID)
+	if sessionID == "" {
+		sessionID = strings.TrimSpace(env.Config.Session.SessionID)
+	}
+	campaign := strings.TrimSpace(m.Campaign)
+	if campaign == "" {
+		campaign = strings.TrimSpace(env.Config.Session.Campaign)
+	}
+	runID := strings.TrimSpace(m.RunID)
+	if sessionID == "" || campaign == "" || runID == "" {
+		return nil, fmt.Errorf("extract: session id, campaign, and run id are required")
+	}
+	if !safePathSegment(runID) {
+		return nil, fmt.Errorf("extract: run id %q is not a safe path segment", runID)
+	}
+
+	paths := sessionPathsForEnv(env, sessionID)
+	input, err := artifacts.ResolveSessionArtifact(paths, m, artifacts.ArtifactTranscriptFinalTrimmed)
+	if err != nil {
+		return nil, fmt.Errorf("extract: resolve final-trimmed transcript: %w", err)
+	}
+
+	timeout, err := time.ParseDuration(strings.TrimSpace(notariusConfig.Timeout))
+	if err != nil || timeout <= 0 {
+		return nil, fmt.Errorf("extract: invalid notarius timeout %q", notariusConfig.Timeout)
+	}
+	resolvedBinary, err := resolveExecutable(notariusConfig.Binary)
+	if err != nil {
+		return nil, fmt.Errorf("extract: resolve notarius binary: %w", err)
+	}
+	configPath, err := absolutePath(notariusConfig.ConfigPath)
+	if err != nil {
+		return nil, fmt.Errorf("extract: resolve notarius config path: %w", err)
+	}
+	inputPath, err := absolutePath(input.Path)
+	if err != nil {
+		return nil, fmt.Errorf("extract: resolve transcript input path: %w", err)
+	}
+	workingDirectory, err := absolutePath(notariusConfig.WorkingDirectory)
+	if err != nil {
+		return nil, fmt.Errorf("extract: resolve notarius working directory: %w", err)
+	}
+
+	workspaceRoot := strings.TrimSpace(paths.WorkspaceRoot)
+	if workspaceRoot == "" {
+		workspaceRoot = env.Config.Pipeline.Workspace.Root
+	}
+	receiptPath, err := absolutePath(artifacts.SessionRunNotariusReceiptPathForCampaign(workspaceRoot, campaign, sessionID, runID))
+	if err != nil {
+		return nil, fmt.Errorf("extract: resolve receipt path: %w", err)
+	}
+	logPath, err := absolutePath(artifacts.SessionRunNotariusLogPathForCampaign(workspaceRoot, campaign, sessionID, runID))
+	if err != nil {
+		return nil, fmt.Errorf("extract: resolve stderr path: %w", err)
+	}
+	outputRoot, err := absolutePath(artifacts.SessionRunNotariusOutputRootForCampaign(workspaceRoot, campaign, sessionID, runID))
+	if err != nil {
+		return nil, fmt.Errorf("extract: resolve output root: %w", err)
+	}
+	durableBundle, err := absolutePath(artifacts.SessionNotariusBundleDirForCampaign(workspaceRoot, campaign, sessionID, runID))
+	if err != nil {
+		return nil, fmt.Errorf("extract: resolve durable bundle path: %w", err)
+	}
+	for _, directory := range []string{filepath.Dir(receiptPath), outputRoot, filepath.Dir(durableBundle)} {
+		if err := os.MkdirAll(directory, 0o755); err != nil {
+			return nil, fmt.Errorf("extract: create directory %q: %w", directory, err)
+		}
+	}
+
+	fingerprint, err := extractionFingerprint(resolvedBinary, configPath, notariusConfig, timeout, workingDirectory)
+	if err != nil {
+		return nil, fmt.Errorf("extract: build configuration fingerprint: %w", err)
+	}
+	request := notarius.RunRequest{
+		Binary: resolvedBinary, ConfigPath: configPath, PipelineID: notariusConfig.PipelineID,
+		InputPath: inputPath, OutputRoot: outputRoot, WorkingDirectory: workingDirectory,
+		ReceiptPath: receiptPath, LogPath: logPath, Timeout: timeout,
+	}
+	adapterResult, err := env.Notarius.Run(ctx, request)
+	if err != nil {
+		return nil, fmt.Errorf("extract: run notarius: %w", err)
+	}
+	if strings.TrimSpace(adapterResult.BundleRoot) == "" || strings.TrimSpace(adapterResult.Index.Path) == "" {
+		return nil, fmt.Errorf("extract: notarius result is missing bundle or index path")
+	}
+	if adapterResult.Receipt.RunID == "" || adapterResult.Receipt.PipelineID != notariusConfig.PipelineID {
+		return nil, fmt.Errorf("extract: notarius receipt identity is missing or incompatible")
+	}
+
+	selected, err := selectRequiredNotariusLanes(env.ArtifactStore, notariusConfig.Outputs, adapterResult)
+	if err != nil {
+		return nil, err
+	}
+	indexRelative, err := pathsafe.SlashRelativeFromRoot(adapterResult.BundleRoot, adapterResult.Index.Path)
+	if err != nil {
+		return nil, fmt.Errorf("extract: resolve staging index relative path: %w", err)
+	}
+	rejectionsRelative, err := pathsafe.SlashRelativeFromRoot(adapterResult.BundleRoot, adapterResult.Index.RejectedPath)
+	if err != nil {
+		return nil, fmt.Errorf("extract: resolve staging rejections relative path: %w", err)
+	}
+	warningsRelative, err := pathsafe.SlashRelativeFromRoot(adapterResult.BundleRoot, adapterResult.Index.WarningsPath)
+	if err != nil {
+		return nil, fmt.Errorf("extract: resolve staging warnings relative path: %w", err)
+	}
+	stagingIndexChecksum, err := checksumRegularFile(adapterResult.Index.Path, false)
+	if err != nil {
+		return nil, fmt.Errorf("extract: validate staging index: %w", err)
+	}
+
+	if err := fileops.PromoteDirectory(adapterResult.BundleRoot, durableBundle); err != nil {
+		return nil, fmt.Errorf("extract: promote notarius bundle: %w", err)
+	}
+	promotedIndexPath, err := pathsafe.JoinSlashRelativeUnderRoot(durableBundle, indexRelative)
+	if err != nil {
+		return nil, fmt.Errorf("extract: resolve promoted index: %w", err)
+	}
+	promotedIndexChecksum, err := checksumRegularFile(promotedIndexPath, false)
+	if err != nil {
+		return nil, fmt.Errorf("extract: checksum promoted index: %w", err)
+	}
+	if promotedIndexChecksum != stagingIndexChecksum {
+		return nil, fmt.Errorf("extract: promoted index checksum differs from staging index")
+	}
+	promotedRejectionsPath, err := pathsafe.JoinSlashRelativeUnderRoot(durableBundle, rejectionsRelative)
+	if err != nil {
+		return nil, fmt.Errorf("extract: resolve promoted rejections: %w", err)
+	}
+	promotedWarningsPath, err := pathsafe.JoinSlashRelativeUnderRoot(durableBundle, warningsRelative)
+	if err != nil {
+		return nil, fmt.Errorf("extract: resolve promoted warnings: %w", err)
+	}
+
+	outputs := make([]artifacts.Ref, 0, len(selected)+1)
+	for _, lane := range selected {
+		promotedPath, err := pathsafe.JoinSlashRelativeUnderRoot(durableBundle, lane.RelativePath)
+		if err != nil {
+			return nil, fmt.Errorf("extract: resolve promoted lane %q: %w", lane.Descriptor.LaneID, err)
+		}
+		checksum, err := checksumRegularFile(promotedPath, true)
+		if err != nil {
+			return nil, fmt.Errorf("extract: validate promoted lane %q: %w", lane.Descriptor.LaneID, err)
+		}
+		if checksum != lane.StagingChecksum {
+			return nil, fmt.Errorf("extract: promoted lane %q checksum differs from staging payload", lane.Descriptor.LaneID)
+		}
+		relativePath, err := pathsafe.SlashRelativeFromRoot(paths.Root, promotedPath)
+		if err != nil {
+			return nil, fmt.Errorf("extract: derive lane %q session-relative path: %w", lane.Descriptor.LaneID, err)
+		}
+		outputs = append(outputs, artifacts.Ref{
+			Kind: extractLaneOutputKind, SourceID: artifacts.ExtractionArtifactSourceID(lane.Key),
+			Category: "artifacts", SessionID: sessionID, RelativePath: relativePath,
+			AbsolutePath: promotedPath, Checksum: checksum,
+			Contract: &artifactmodel.ContractMetadata{
+				MediaType: lane.Descriptor.MediaType, SchemaID: lane.Descriptor.SchemaID,
+				SchemaVersion: lane.Descriptor.SchemaVersion, ModuleKey: lane.Descriptor.ModuleKey,
+			},
+			ExternalProvenance: &artifactmodel.ExternalProvenance{
+				System: "notarius", RunID: adapterResult.Receipt.RunID,
+				PipelineID: adapterResult.Receipt.PipelineID, ArtifactID: lane.Descriptor.LaneID,
+			},
+		})
+	}
+	indexSessionRelative, err := pathsafe.SlashRelativeFromRoot(paths.Root, promotedIndexPath)
+	if err != nil {
+		return nil, fmt.Errorf("extract: derive index session-relative path: %w", err)
+	}
+	outputs = append(outputs, artifacts.Ref{
+		Kind: extractIndexOutputKind, Category: "artifacts", SessionID: sessionID,
+		RelativePath: indexSessionRelative, AbsolutePath: promotedIndexPath, Checksum: promotedIndexChecksum,
+	})
+
+	metadata := map[string]any{
+		"stage":                     "extract",
+		"notarius_enabled":          true,
+		"bundle_root":               durableBundle,
+		"receipt_path":              receiptPath,
+		"diagnostic_path":           logPath,
+		"rejections_path":           promotedRejectionsPath,
+		"warnings_path":             promotedWarningsPath,
+		"narratio_run_id":           runID,
+		"configuration_fingerprint": fingerprint,
+		"receipt": map[string]any{
+			"run_id": adapterResult.Receipt.RunID, "pipeline_id": adapterResult.Receipt.PipelineID,
+			"normalized_output_count": adapterResult.Receipt.NormalizedOutputCount,
+			"rejected_output_count":   adapterResult.Receipt.RejectedOutputCount,
+			"warning_count":           adapterResult.Receipt.WarningCount,
+			"validation_status":       adapterResult.Receipt.ValidationStatus,
+		},
+		"rejections": boundedRejectionMetadata(adapterResult.Rejections),
+		"warnings":   boundedWarningMetadata(adapterResult.Warnings),
+	}
+	return &StageResult{
+		Outputs:  outputs,
+		Logs:     []string{receiptPath, logPath},
+		Metadata: metadata,
+	}, nil
+}
+
+type selectedNotariusLane struct {
+	Key             string
+	Descriptor      notarius.LaneDescriptor
+	RelativePath    string
+	StagingChecksum string
+}
+
+func selectRequiredNotariusLanes(
+	store artifacts.Store,
+	required map[string]config.NotariusOutputConfig,
+	result notarius.RunResult,
+) ([]selectedNotariusLane, error) {
+	keys := make([]string, 0, len(required))
+	for key := range required {
+		keys = append(keys, key)
+	}
+	sort.Strings(keys)
+	selected := make([]selectedNotariusLane, 0, len(keys))
+	for _, key := range keys {
+		expected := required[key]
+		for _, rejection := range result.Rejections {
+			if rejection.LaneID == expected.LaneID {
+				return nil, fmt.Errorf("extract: required lane %q was rejected (reason_code=%q)", expected.LaneID, rejection.ReasonCode)
+			}
+		}
+		matches := make([]notarius.LaneDescriptor, 0, 1)
+		for _, descriptor := range result.Index.Lanes {
+			if descriptor.LaneID == expected.LaneID {
+				matches = append(matches, descriptor)
+			}
+		}
+		if len(matches) != 1 {
+			return nil, fmt.Errorf("extract: required lane %q has %d descriptors, want exactly one", expected.LaneID, len(matches))
+		}
+		descriptor := matches[0]
+		if descriptor.MediaType != expected.MediaType || descriptor.SchemaID != expected.SchemaID ||
+			descriptor.SchemaVersion != expected.SchemaVersion ||
+			(expected.ModuleKey != "" && descriptor.ModuleKey != expected.ModuleKey) {
+			return nil, fmt.Errorf("extract: required lane %q descriptor contract is incompatible", expected.LaneID)
+		}
+		checksum, err := checksumRegularFile(descriptor.Path, true)
+		if err != nil {
+			return nil, fmt.Errorf("extract: validate required lane %q: %w", expected.LaneID, err)
+		}
+		if store != nil {
+			storeChecksum, err := store.Checksum(descriptor.Path)
+			if err != nil {
+				return nil, fmt.Errorf("extract: checksum required lane %q: %w", expected.LaneID, err)
+			}
+			if storeChecksum != checksum {
+				return nil, fmt.Errorf("extract: inconsistent staging checksum for required lane %q", expected.LaneID)
+			}
+		}
+		relative, err := pathsafe.SlashRelativeFromRoot(result.BundleRoot, descriptor.Path)
+		if err != nil {
+			return nil, fmt.Errorf("extract: resolve required lane %q relative path: %w", expected.LaneID, err)
+		}
+		selected = append(selected, selectedNotariusLane{
+			Key: key, Descriptor: descriptor, RelativePath: relative, StagingChecksum: checksum,
+		})
+	}
+	return selected, nil
+}
+
+func checksumRegularFile(path string, requireJSON bool) (string, error) {
+	info, err := os.Lstat(path)
+	if err != nil {
+		return "", err
+	}
+	if info.Mode()&os.ModeSymlink != 0 || !info.Mode().IsRegular() {
+		return "", fmt.Errorf("path %q must be a regular file without symlinks", path)
+	}
+	if info.Size() == 0 {
+		return "", fmt.Errorf("path %q must be non-empty", path)
+	}
+	data, err := os.ReadFile(path)
+	if err != nil {
+		return "", err
+	}
+	if requireJSON && !json.Valid(data) {
+		return "", fmt.Errorf("path %q is not valid JSON", path)
+	}
+	digest := sha256.Sum256(data)
+	return hex.EncodeToString(digest[:]), nil
+}
+
+type fingerprintOutput struct {
+	Key           string `json:"key"`
+	LaneID        string `json:"lane_id"`
+	MediaType     string `json:"media_type"`
+	SchemaID      string `json:"schema_id"`
+	SchemaVersion string `json:"schema_version"`
+	ModuleKey     string `json:"module_key,omitempty"`
+}
+
+type fingerprintDocument struct {
+	Binary           string              `json:"binary"`
+	ConfigPath       string              `json:"config_path"`
+	PipelineID       string              `json:"pipeline_id"`
+	Timeout          string              `json:"timeout"`
+	WorkingDirectory string              `json:"working_directory"`
+	Outputs          []fingerprintOutput `json:"outputs"`
+}
+
+func extractionFingerprint(
+	binary, configPath string,
+	cfg *config.NotariusConfig,
+	timeout time.Duration,
+	workingDirectory string,
+) (string, error) {
+	keys := make([]string, 0, len(cfg.Outputs))
+	for key := range cfg.Outputs {
+		keys = append(keys, key)
+	}
+	sort.Strings(keys)
+	outputs := make([]fingerprintOutput, 0, len(keys))
+	for _, key := range keys {
+		output := cfg.Outputs[key]
+		outputs = append(outputs, fingerprintOutput{
+			Key: key, LaneID: output.LaneID, MediaType: output.MediaType,
+			SchemaID: output.SchemaID, SchemaVersion: output.SchemaVersion, ModuleKey: output.ModuleKey,
+		})
+	}
+	payload, err := json.Marshal(fingerprintDocument{
+		Binary: binary, ConfigPath: configPath, PipelineID: cfg.PipelineID,
+		Timeout: timeout.String(), WorkingDirectory: workingDirectory, Outputs: outputs,
+	})
+	if err != nil {
+		return "", err
+	}
+	digest := sha256.Sum256(payload)
+	return hex.EncodeToString(digest[:]), nil
+}
+
+func resolveExecutable(value string) (string, error) {
+	resolved, err := exec.LookPath(strings.TrimSpace(value))
+	if err != nil {
+		return "", err
+	}
+	return absolutePath(resolved)
+}
+
+func absolutePath(value string) (string, error) {
+	trimmed := strings.TrimSpace(value)
+	if trimmed == "" {
+		return "", fmt.Errorf("path is required")
+	}
+	resolved, err := filepath.Abs(trimmed)
+	if err != nil {
+		return "", err
+	}
+	return filepath.Clean(resolved), nil
+}
+
+func safePathSegment(value string) bool {
+	return value != "" && value != "." && value != ".." && filepath.Base(value) == value &&
+		!strings.ContainsAny(value, `/\\`)
+}
+
+func boundedRejectionMetadata(values []notarius.RejectionSummary) []map[string]any {
+	limit := len(values)
+	if limit > maxDiagnosticSummaries {
+		limit = maxDiagnosticSummaries
+	}
+	result := make([]map[string]any, 0, limit)
+	for _, value := range values[:limit] {
+		result = append(result, map[string]any{
+			"stage": value.Stage, "step_id": value.StepID, "lane_id": value.LaneID,
+			"module_key": value.ModuleKey, "chunk_id": value.ChunkID,
+			"validator_name": value.ValidatorName, "reason_code": value.ReasonCode,
+		})
+	}
+	return result
+}
+
+func boundedWarningMetadata(values []notarius.WarningSummary) []map[string]any {
+	limit := len(values)
+	if limit > maxDiagnosticSummaries {
+		limit = maxDiagnosticSummaries
+	}
+	result := make([]map[string]any, 0, limit)
+	for _, value := range values[:limit] {
+		result = append(result, map[string]any{"scope": value.Scope, "reason_code": value.ReasonCode})
+	}
+	return result
+}

internal/stage/extract_resume.go

@@ -0,0 +1,250 @@
+package stage
+
+import (
+	"context"
+	"fmt"
+	"os"
+	"path/filepath"
+	"strings"
+	"time"
+
+	"gitea.maximumdirect.net/eric/narratio/internal/artifactmodel"
+	"gitea.maximumdirect.net/eric/narratio/internal/artifacts"
+	"gitea.maximumdirect.net/eric/narratio/internal/config"
+	"gitea.maximumdirect.net/eric/narratio/internal/manifest"
+	"gitea.maximumdirect.net/eric/narratio/internal/pathsafe"
+)
+
+func (extractStage) ValidateResume(_ context.Context, env *Env, m *manifest.Manifest) (ResumeValidation, error) {
+	if env == nil || env.Config == nil || env.Config.Pipeline == nil || env.Config.Session == nil {
+		return ResumeValidation{}, fmt.Errorf("extract resume: resolved stage environment config is required")
+	}
+	cfg := env.Config.Pipeline.Notarius
+	if cfg == nil || !cfg.Enabled {
+		return NonResumable("Notarius extraction is disabled"), nil
+	}
+	if m == nil {
+		return ResumeValidation{}, fmt.Errorf("extract resume: session manifest is required")
+	}
+	record := m.Stages[(extractStage{}).Name()]
+	if record == nil || record.Status != manifest.StatusSucceeded {
+		return NonResumable("extract stage has no succeeded result"), nil
+	}
+	if record.Name != (extractStage{}).Name() {
+		return NonResumable("extract stage record identity is inconsistent"), nil
+	}
+
+	producerRunID := metadataString(record.Metadata, "narratio_run_id")
+	if producerRunID == "" {
+		return NonResumable("extract result is missing its producing run ID"), nil
+	}
+	if !safePathSegment(producerRunID) {
+		return NonResumable("extract result has an invalid producing run ID"), nil
+	}
+
+	timeout, err := time.ParseDuration(strings.TrimSpace(cfg.Timeout))
+	if err != nil || timeout <= 0 {
+		return ResumeValidation{}, fmt.Errorf("extract resume: invalid Notarius timeout %q", cfg.Timeout)
+	}
+	resolvedBinary, err := resolveExecutable(cfg.Binary)
+	if err != nil {
+		return ResumeValidation{}, fmt.Errorf("extract resume: resolve Notarius binary: %w", err)
+	}
+	configPath, err := absolutePath(cfg.ConfigPath)
+	if err != nil {
+		return ResumeValidation{}, fmt.Errorf("extract resume: resolve Notarius config path: %w", err)
+	}
+	workingDirectory, err := absolutePath(cfg.WorkingDirectory)
+	if err != nil {
+		return ResumeValidation{}, fmt.Errorf("extract resume: resolve Notarius working directory: %w", err)
+	}
+	fingerprint, err := extractionFingerprint(resolvedBinary, configPath, cfg, timeout, workingDirectory)
+	if err != nil {
+		return ResumeValidation{}, fmt.Errorf("extract resume: build configuration fingerprint: %w", err)
+	}
+	if metadataString(record.Metadata, "configuration_fingerprint") != fingerprint {
+		return NonResumable("Notarius invocation contract changed"), nil
+	}
+
+	sessionID := strings.TrimSpace(m.SessionID)
+	if sessionID == "" {
+		sessionID = strings.TrimSpace(env.Config.Session.SessionID)
+	}
+	campaign := strings.TrimSpace(m.Campaign)
+	if campaign == "" {
+		campaign = strings.TrimSpace(env.Config.Session.Campaign)
+	}
+	if sessionID == "" || campaign == "" {
+		return ResumeValidation{}, fmt.Errorf("extract resume: session ID and campaign are required")
+	}
+	paths := sessionPathsForEnv(env, sessionID)
+	workspaceRoot := strings.TrimSpace(paths.WorkspaceRoot)
+	if workspaceRoot == "" {
+		workspaceRoot = env.Config.Pipeline.Workspace.Root
+	}
+	bundleRoot, err := absolutePath(artifacts.SessionNotariusBundleDirForCampaign(workspaceRoot, campaign, sessionID, producerRunID))
+	if err != nil {
+		return ResumeValidation{}, fmt.Errorf("extract resume: resolve durable bundle path: %w", err)
+	}
+	storedBundleRoot := metadataString(record.Metadata, "bundle_root")
+	if storedBundleRoot == "" || !filepath.IsAbs(storedBundleRoot) || filepath.Clean(storedBundleRoot) != bundleRoot {
+		return NonResumable("extract result does not identify its canonical immutable bundle"), nil
+	}
+	bundleRelative, err := pathsafe.SlashRelativeFromRoot(paths.Root, bundleRoot)
+	if err != nil {
+		return ResumeValidation{}, fmt.Errorf("extract resume: immutable bundle path is unsafe: %w", err)
+	}
+	if err := rejectSymlinkComponents(paths.Root, bundleRelative); err != nil {
+		return ResumeValidation{}, err
+	}
+	bundleInfo, err := os.Lstat(bundleRoot)
+	if os.IsNotExist(err) {
+		return NonResumable("immutable Notarius bundle is missing"), nil
+	}
+	if err != nil {
+		return ResumeValidation{}, fmt.Errorf("extract resume: inspect immutable bundle: %w", err)
+	}
+	if bundleInfo.Mode()&os.ModeSymlink != 0 {
+		return ResumeValidation{}, fmt.Errorf("extract resume: immutable bundle must not be a symlink")
+	}
+	if !bundleInfo.IsDir() {
+		return NonResumable("immutable Notarius bundle is not a directory"), nil
+	}
+
+	receiptRunID, receiptPipelineID := receiptIdentity(record.Metadata)
+	if receiptRunID == "" || receiptPipelineID != cfg.PipelineID {
+		return NonResumable("extract result has incompatible Notarius receipt identity"), nil
+	}
+
+	expectedSources := make(map[string]config.NotariusOutputConfig, len(cfg.Outputs))
+	for key, output := range cfg.Outputs {
+		expectedSources[artifacts.ExtractionArtifactSourceID(key)] = output
+	}
+	seenSources := make(map[string]struct{}, len(expectedSources))
+	indexSeen := false
+	for _, output := range record.Outputs {
+		if output.ProducerRunID != producerRunID {
+			return NonResumable("extract output producer identity is inconsistent"), nil
+		}
+		if output.SourceID == "" {
+			if indexSeen || output.Kind != extractIndexOutputKind {
+				return NonResumable("extract result has an unexpected non-selectable output"), nil
+			}
+			indexSeen = true
+			expectedIndex := filepath.Join(bundleRoot, "index.json")
+			if filepath.Clean(output.LocalPath) != expectedIndex {
+				return NonResumable("extract index path is not canonical"), nil
+			}
+			validation, err := validateResumePayload(bundleRoot, output.LocalPath, output.Checksum)
+			if err != nil || !validation.Resumable {
+				return validation, err
+			}
+			continue
+		}
+
+		expected, ok := expectedSources[output.SourceID]
+		if !ok || output.Kind != extractLaneOutputKind {
+			return NonResumable("extract result source set differs from current configuration"), nil
+		}
+		if _, duplicate := seenSources[output.SourceID]; duplicate {
+			return NonResumable("extract result contains a duplicate configured source"), nil
+		}
+		seenSources[output.SourceID] = struct{}{}
+		if !compatibleExtractionContract(output.Contract, expected) {
+			return NonResumable("extract output contract is incompatible with current configuration"), nil
+		}
+		if !compatibleExtractionProvenance(output.ExternalProvenance, receiptRunID, receiptPipelineID, expected.LaneID) {
+			return NonResumable("extract output has incompatible Notarius provenance"), nil
+		}
+		validation, err := validateResumePayload(bundleRoot, output.LocalPath, output.Checksum)
+		if err != nil || !validation.Resumable {
+			return validation, err
+		}
+	}
+	if !indexSeen {
+		return NonResumable("extract result is missing its canonical index"), nil
+	}
+	if len(seenSources) != len(expectedSources) || len(record.Outputs) != len(expectedSources)+1 {
+		return NonResumable("extract result is missing configured sources"), nil
+	}
+	return Resumable(), nil
+}
+
+func validateResumePayload(bundleRoot, path, checksum string) (ResumeValidation, error) {
+	if !filepath.IsAbs(path) {
+		return ResumeValidation{}, fmt.Errorf("extract resume: persisted output path must be absolute")
+	}
+	relative, err := pathsafe.SlashRelativeFromRoot(bundleRoot, path)
+	if err != nil {
+		return ResumeValidation{}, fmt.Errorf("extract resume: persisted output path is unsafe: %w", err)
+	}
+	if err := rejectSymlinkComponents(bundleRoot, relative); err != nil {
+		return ResumeValidation{}, err
+	}
+	info, err := os.Lstat(path)
+	if os.IsNotExist(err) {
+		return NonResumable("extract output is missing"), nil
+	}
+	if err != nil {
+		return ResumeValidation{}, fmt.Errorf("extract resume: inspect output %q: %w", path, err)
+	}
+	if info.Mode()&os.ModeSymlink != 0 || !info.Mode().IsRegular() {
+		return ResumeValidation{}, fmt.Errorf("extract resume: output %q must be a regular file without symlinks", path)
+	}
+	if strings.TrimSpace(checksum) == "" {
+		return NonResumable("extract output is missing its checksum"), nil
+	}
+	actual, err := artifacts.SHA256File(path)
+	if err != nil {
+		return ResumeValidation{}, fmt.Errorf("extract resume: checksum output %q: %w", path, err)
+	}
+	if actual != checksum {
+		return NonResumable("extract output checksum does not match durable bytes"), nil
+	}
+	return Resumable(), nil
+}
+
+func rejectSymlinkComponents(root, slashRelative string) error {
+	current := filepath.Clean(root)
+	parts := strings.Split(filepath.FromSlash(slashRelative), string(filepath.Separator))
+	for _, part := range parts[:len(parts)-1] {
+		current = filepath.Join(current, part)
+		info, err := os.Lstat(current)
+		if os.IsNotExist(err) {
+			return nil
+		}
+		if err != nil {
+			return fmt.Errorf("extract resume: inspect output directory %q: %w", current, err)
+		}
+		if info.Mode()&os.ModeSymlink != 0 {
+			return fmt.Errorf("extract resume: output directory %q must not be a symlink", current)
+		}
+	}
+	return nil
+}
+
+func compatibleExtractionContract(got *artifactmodel.ContractMetadata, want config.NotariusOutputConfig) bool {
+	return got != nil && got.MediaType == want.MediaType && got.SchemaID == want.SchemaID &&
+		got.SchemaVersion == want.SchemaVersion && (want.ModuleKey == "" || got.ModuleKey == want.ModuleKey)
+}
+
+func compatibleExtractionProvenance(got *artifactmodel.ExternalProvenance, runID, pipelineID, laneID string) bool {
+	return got != nil && got.System == "notarius" && got.RunID == runID &&
+		got.PipelineID == pipelineID && got.ArtifactID == laneID
+}
+
+func metadataString(metadata map[string]any, key string) string {
+	if metadata == nil {
+		return ""
+	}
+	value, _ := metadata[key].(string)
+	return strings.TrimSpace(value)
+}
+
+func receiptIdentity(metadata map[string]any) (string, string) {
+	if metadata == nil {
+		return "", ""
+	}
+	receipt, _ := metadata["receipt"].(map[string]any)
+	return metadataString(receipt, "run_id"), metadataString(receipt, "pipeline_id")
+}

internal/stage/extract_test.go

@@ -0,0 +1,575 @@
+package stage
+
+import (
+	"context"
+	"encoding/json"
+	"errors"
+	"os"
+	"path/filepath"
+	"reflect"
+	"strings"
+	"testing"
+	"time"
+
+	"gitea.maximumdirect.net/eric/narratio/internal/adapters/notarius"
+	"gitea.maximumdirect.net/eric/narratio/internal/artifactmodel"
+	"gitea.maximumdirect.net/eric/narratio/internal/artifacts"
+	"gitea.maximumdirect.net/eric/narratio/internal/config"
+	"gitea.maximumdirect.net/eric/narratio/internal/manifest"
+)
+
+func TestExtractStageDisabledReturnsExplicitSkip(t *testing.T) {
+	for _, test := range []struct {
+		name   string
+		absent bool
+	}{
+		{name: "disabled"},
+		{name: "absent", absent: true},
+	} {
+		t.Run(test.name, func(t *testing.T) {
+			env, m, fake := setupExtractEnv(t)
+			if test.absent {
+				env.Config.Pipeline.Notarius = nil
+			} else {
+				env.Config.Pipeline.Notarius.Enabled = false
+			}
+
+			result, err := (extractStage{}).Run(context.Background(), env, m)
+			if err != nil {
+				t.Fatalf("Run() error = %v", err)
+			}
+			if result.Disposition != StageDispositionSkipped || result.SkipReason != extractSkipReason {
+				t.Fatalf("result disposition = %q reason = %q", result.Disposition, result.SkipReason)
+			}
+			if len(result.Outputs) != 0 || len(fake.Requests) != 0 {
+				t.Fatalf("outputs = %#v; requests = %#v", result.Outputs, fake.Requests)
+			}
+		})
+	}
+}
+
+func TestExtractStageResolvesManifestInputAndBuildsExactRequest(t *testing.T) {
+	env, m, fake := setupExtractEnv(t)
+	result, err := (extractStage{}).Run(context.Background(), env, m)
+	if err != nil {
+		t.Fatalf("Run() error = %v", err)
+	}
+	if len(fake.Requests) != 1 {
+		t.Fatalf("requests = %d, want 1", len(fake.Requests))
+	}
+	req := fake.Requests[0]
+	fixture := extractFixtureFromEnv(t, env, m)
+	if req.InputPath != fixture.inputPath {
+		t.Fatalf("input path = %q, want manifest path %q", req.InputPath, fixture.inputPath)
+	}
+	wantReceipt := artifacts.SessionRunNotariusReceiptPathForCampaign(fixture.workspace, fixture.campaign, fixture.sessionID, fixture.runID)
+	wantLog := artifacts.SessionRunNotariusLogPathForCampaign(fixture.workspace, fixture.campaign, fixture.sessionID, fixture.runID)
+	wantOutputRoot := artifacts.SessionRunNotariusOutputRootForCampaign(fixture.workspace, fixture.campaign, fixture.sessionID, fixture.runID)
+	if req.ConfigPath != env.Config.Pipeline.Notarius.ConfigPath || req.PipelineID != "dnd-session" ||
+		req.OutputRoot != wantOutputRoot || req.ReceiptPath != wantReceipt || req.LogPath != wantLog ||
+		req.WorkingDirectory != env.Config.Pipeline.Notarius.WorkingDirectory || req.Timeout != 45*time.Minute {
+		t.Fatalf("request = %#v", req)
+	}
+	if !filepath.IsAbs(req.Binary) {
+		t.Fatalf("binary = %q, want absolute resolved path", req.Binary)
+	}
+	if len(result.Outputs) != 2 {
+		t.Fatalf("outputs = %#v, want lane and index", result.Outputs)
+	}
+}
+
+func TestExtractStageProducesImmutableManifestReadyOutputs(t *testing.T) {
+	env, m, fake := setupExtractEnv(t)
+	fixture := extractFixtureFromEnv(t, env, m)
+	stagingBundle := fake.Result.BundleRoot
+
+	result, err := (extractStage{}).Run(context.Background(), env, m)
+	if err != nil {
+		t.Fatalf("Run() error = %v", err)
+	}
+	durableBundle := artifacts.SessionNotariusBundleDirForCampaign(fixture.workspace, fixture.campaign, fixture.sessionID, fixture.runID)
+	if result.Metadata["bundle_root"] != durableBundle || result.Metadata["narratio_run_id"] != fixture.runID {
+		t.Fatalf("metadata = %#v", result.Metadata)
+	}
+	if fingerprint, _ := result.Metadata["configuration_fingerprint"].(string); len(fingerprint) != 64 {
+		t.Fatalf("configuration fingerprint = %#v", result.Metadata["configuration_fingerprint"])
+	}
+	if result.Metadata["receipt_path"] != artifacts.SessionRunNotariusReceiptPathForCampaign(fixture.workspace, fixture.campaign, fixture.sessionID, fixture.runID) ||
+		result.Metadata["diagnostic_path"] != artifacts.SessionRunNotariusLogPathForCampaign(fixture.workspace, fixture.campaign, fixture.sessionID, fixture.runID) ||
+		result.Metadata["rejections_path"] != filepath.Join(durableBundle, "rejected.json") ||
+		result.Metadata["warnings_path"] != filepath.Join(durableBundle, "warnings.json") {
+		t.Fatalf("diagnostic metadata = %#v", result.Metadata)
+	}
+	if len(result.Outputs) != 2 {
+		t.Fatalf("outputs = %#v", result.Outputs)
+	}
+	lane := result.Outputs[0]
+	if lane.Kind != extractLaneOutputKind || lane.SourceID != "narratio.extraction.npc_registry" {
+		t.Fatalf("lane identity = %#v", lane)
+	}
+	if lane.AbsolutePath != filepath.Join(durableBundle, "lanes", "npc.json") || lane.Checksum == "" {
+		t.Fatalf("lane path/checksum = %#v", lane)
+	}
+	wantContract := &artifactmodel.ContractMetadata{
+		MediaType: "application/json", SchemaID: "notarius.dnd.npc_registry",
+		SchemaVersion: "v1", ModuleKey: "dnd/npc-registry",
+	}
+	if !reflect.DeepEqual(lane.Contract, wantContract) {
+		t.Fatalf("lane contract = %#v, want %#v", lane.Contract, wantContract)
+	}
+	wantProvenance := &artifactmodel.ExternalProvenance{
+		System: "notarius", RunID: "notarius-run-1", PipelineID: "dnd-session", ArtifactID: "npc-registry",
+	}
+	if !reflect.DeepEqual(lane.ExternalProvenance, wantProvenance) {
+		t.Fatalf("lane provenance = %#v, want %#v", lane.ExternalProvenance, wantProvenance)
+	}
+	index := result.Outputs[1]
+	if index.Kind != extractIndexOutputKind || index.SourceID != "" || index.AbsolutePath != filepath.Join(durableBundle, "index.json") || index.Checksum == "" {
+		t.Fatalf("index output = %#v", index)
+	}
+	if !strings.HasPrefix(lane.AbsolutePath, durableBundle+string(filepath.Separator)) || strings.HasPrefix(lane.AbsolutePath, stagingBundle+string(filepath.Separator)) {
+		t.Fatalf("lane path was not re-resolved after promotion: %q", lane.AbsolutePath)
+	}
+	for _, relative := range []string{
+		"index.json", "manifest.json", "rejected.json", "warnings.json", "lanes/npc.json",
+		"lanes/unconfigured.json", "chunk-map.json", "evidence-context.json", "unknown/private-debug.json",
+	} {
+		if _, err := os.Stat(filepath.Join(durableBundle, filepath.FromSlash(relative))); err != nil {
+			t.Fatalf("promoted file %q missing: %v", relative, err)
+		}
+	}
+	if _, err := os.Stat(filepath.Join(stagingBundle, "unknown", "private-debug.json")); err != nil {
+		t.Fatalf("source bundle was not preserved: %v", err)
+	}
+	for _, output := range result.Outputs {
+		if strings.Contains(output.AbsolutePath, "unconfigured") || strings.Contains(output.AbsolutePath, "private-debug") {
+			t.Fatalf("unknown file registered as output: %#v", output)
+		}
+	}
+
+	rejections, _ := result.Metadata["rejections"].([]map[string]any)
+	warnings, _ := result.Metadata["warnings"].([]map[string]any)
+	if len(rejections) != 1 || rejections[0]["reason_code"] != "optional_rejected" || len(warnings) != 1 {
+		t.Fatalf("diagnostic summaries = rejections %#v warnings %#v", rejections, warnings)
+	}
+}
+
+func TestExtractStageRejectsMissingOrInvalidFinalTrimmedInputBeforeInvocation(t *testing.T) {
+	tests := []struct {
+		name    string
+		content string
+		remove  bool
+	}{
+		{name: "missing", remove: true},
+		{name: "invalid json", content: "not-json"},
+		{name: "missing segments", content: `{}`},
+	}
+	for _, test := range tests {
+		t.Run(test.name, func(t *testing.T) {
+			env, m, fake := setupExtractEnv(t)
+			fixture := extractFixtureFromEnv(t, env, m)
+			if test.remove {
+				if err := os.Remove(fixture.inputPath); err != nil {
+					t.Fatalf("Remove(input) error = %v", err)
+				}
+			} else if err := os.WriteFile(fixture.inputPath, []byte(test.content), 0o644); err != nil {
+				t.Fatalf("WriteFile(input) error = %v", err)
+			}
+			if _, err := (extractStage{}).Run(context.Background(), env, m); err == nil {
+				t.Fatal("Run() error = nil")
+			}
+			if len(fake.Requests) != 0 {
+				t.Fatalf("adapter requests = %d, want 0", len(fake.Requests))
+			}
+		})
+	}
+}
+
+func TestExtractStageEnforcesRequiredLanePolicy(t *testing.T) {
+	tests := []struct {
+		name   string
+		mutate func(*notarius.RunResult)
+		want   string
+	}{
+		{name: "missing", mutate: func(result *notarius.RunResult) { result.Index.Lanes = result.Index.Lanes[1:] }, want: "0 descriptors"},
+		{name: "rejected", mutate: func(result *notarius.RunResult) {
+			result.Rejections = append(result.Rejections, notarius.RejectionSummary{LaneID: "npc-registry", ReasonCode: "invalid_npc"})
+		}, want: "was rejected"},
+		{name: "duplicate", mutate: func(result *notarius.RunResult) {
+			result.Index.Lanes = append(result.Index.Lanes, result.Index.Lanes[0])
+		}, want: "2 descriptors"},
+		{name: "media type", mutate: func(result *notarius.RunResult) { result.Index.Lanes[0].MediaType = "text/plain" }, want: "incompatible"},
+		{name: "schema id", mutate: func(result *notarius.RunResult) { result.Index.Lanes[0].SchemaID = "other" }, want: "incompatible"},
+		{name: "schema version", mutate: func(result *notarius.RunResult) { result.Index.Lanes[0].SchemaVersion = "v2" }, want: "incompatible"},
+		{name: "module key", mutate: func(result *notarius.RunResult) { result.Index.Lanes[0].ModuleKey = "other" }, want: "incompatible"},
+	}
+	for _, test := range tests {
+		t.Run(test.name, func(t *testing.T) {
+			env, m, fake := setupExtractEnv(t)
+			test.mutate(&fake.Result)
+			result, err := (extractStage{}).Run(context.Background(), env, m)
+			if err == nil || !strings.Contains(err.Error(), test.want) {
+				t.Fatalf("Run() result = %#v error = %v, want %q", result, err, test.want)
+			}
+			if result != nil && len(result.Outputs) != 0 {
+				t.Fatalf("failure returned outputs: %#v", result.Outputs)
+			}
+		})
+	}
+}
+
+func TestExtractStageValidatesSelectedLaneJSON(t *testing.T) {
+	for _, test := range []struct {
+		name    string
+		content string
+		want    string
+	}{
+		{name: "empty", content: "", want: "non-empty"},
+		{name: "invalid", content: "not-json", want: "valid JSON"},
+	} {
+		t.Run(test.name, func(t *testing.T) {
+			env, m, fake := setupExtractEnv(t)
+			if err := os.WriteFile(fake.Result.Index.Lanes[0].Path, []byte(test.content), 0o644); err != nil {
+				t.Fatalf("WriteFile(lane) error = %v", err)
+			}
+			if _, err := (extractStage{}).Run(context.Background(), env, m); err == nil || !strings.Contains(err.Error(), test.want) {
+				t.Fatalf("Run() error = %v, want %q", err, test.want)
+			}
+		})
+	}
+}
+
+func TestExtractStageAdapterAndPromotionFailuresReturnNoOutputs(t *testing.T) {
+	t.Run("adapter", func(t *testing.T) {
+		env, m, fake := setupExtractEnv(t)
+		fake.Err = errors.New("adapter failed")
+		result, err := (extractStage{}).Run(context.Background(), env, m)
+		if err == nil || !strings.Contains(err.Error(), "adapter failed") || result != nil {
+			t.Fatalf("Run() result = %#v error = %v", result, err)
+		}
+	})
+
+	t.Run("promotion", func(t *testing.T) {
+		env, m, fake := setupExtractEnv(t)
+		fixture := extractFixtureFromEnv(t, env, m)
+		destination := artifacts.SessionNotariusBundleDirForCampaign(fixture.workspace, fixture.campaign, fixture.sessionID, fixture.runID)
+		if err := os.MkdirAll(destination, 0o755); err != nil {
+			t.Fatalf("MkdirAll(destination) error = %v", err)
+		}
+		result, err := (extractStage{}).Run(context.Background(), env, m)
+		if err == nil || !strings.Contains(err.Error(), "promote") || result != nil {
+			t.Fatalf("Run() result = %#v error = %v", result, err)
+		}
+		if _, err := os.Stat(fake.Result.BundleRoot); err != nil {
+			t.Fatalf("failed promotion removed staging bundle: %v", err)
+		}
+	})
+}
+
+func TestExtractionFingerprintIsIndependentOfOutputMapOrder(t *testing.T) {
+	first := &config.NotariusConfig{PipelineID: "pipeline", Outputs: map[string]config.NotariusOutputConfig{
+		"zeta":  {LaneID: "z", MediaType: "application/json", SchemaID: "z", SchemaVersion: "v1"},
+		"alpha": {LaneID: "a", MediaType: "application/json", SchemaID: "a", SchemaVersion: "v1"},
+	}}
+	second := &config.NotariusConfig{PipelineID: "pipeline", Outputs: map[string]config.NotariusOutputConfig{
+		"alpha": first.Outputs["alpha"], "zeta": first.Outputs["zeta"],
+	}}
+	one, err := extractionFingerprint("/bin/notarius", "/etc/notarius.yml", first, time.Minute, "/work")
+	if err != nil {
+		t.Fatalf("extractionFingerprint(first) error = %v", err)
+	}
+	two, err := extractionFingerprint("/bin/notarius", "/etc/notarius.yml", second, time.Minute, "/work")
+	if err != nil {
+		t.Fatalf("extractionFingerprint(second) error = %v", err)
+	}
+	if one != two {
+		t.Fatalf("fingerprints differ: %q != %q", one, two)
+	}
+}
+
+func TestExtractStageResumeValidationAcceptsCurrentImmutableResult(t *testing.T) {
+	env, m, _ := setupExtractEnv(t)
+	seedSucceededExtractResult(t, env, m)
+	m.RunID = "20260810T020304Z-fedcba98"
+
+	validation, err := (extractStage{}).ValidateResume(context.Background(), env, m)
+	if err != nil {
+		t.Fatalf("ValidateResume() error = %v", err)
+	}
+	if !validation.Resumable || validation.Reason != "" {
+		t.Fatalf("validation = %#v, want resumable", validation)
+	}
+}
+
+func TestExtractStageAdapterResultIsImmediatelyReusableAndCatalogVisible(t *testing.T) {
+	env, m, fake := setupExtractEnv(t)
+	producerRunID := m.RunID
+	receiptFixture := filepath.Join(t.TempDir(), "receipt.json")
+	receipt, err := json.Marshal(map[string]any{
+		"schema_version": notarius.ReceiptSchemaVersion,
+		"run_id":         "notarius-run-1", "pipeline_id": "dnd-session",
+		"output_directory": fake.Result.BundleRoot, "index_file": "index.json",
+		"normalized_output_count": 2, "rejected_output_count": 0, "warning_count": 0,
+		"validation_status": "approved", "future_field": true,
+	})
+	if err != nil {
+		t.Fatalf("json.Marshal(receipt) error = %v", err)
+	}
+	if err := os.WriteFile(receiptFixture, receipt, 0o644); err != nil {
+		t.Fatalf("WriteFile(receipt fixture) error = %v", err)
+	}
+	if err := os.WriteFile(env.Config.Pipeline.Notarius.Binary, []byte("#!/bin/sh\ncat \"$NARRATIO_NOTARIUS_RECEIPT_FIXTURE\"\n"), 0o755); err != nil {
+		t.Fatalf("WriteFile(notarius helper) error = %v", err)
+	}
+	t.Setenv("NARRATIO_NOTARIUS_RECEIPT_FIXTURE", receiptFixture)
+	env.Notarius = notarius.NewSubprocessRunner()
+
+	result, err := (extractStage{}).Run(context.Background(), env, m)
+	if err != nil {
+		t.Fatalf("Run() error = %v", err)
+	}
+	durableIndex := filepath.Join(result.Metadata["bundle_root"].(string), "index.json")
+	if len(result.Outputs) != 2 || result.Outputs[1].AbsolutePath != durableIndex {
+		t.Fatalf("outputs = %#v, want canonical durable index %q", result.Outputs, durableIndex)
+	}
+	recordSucceededExtractResult(m, producerRunID, result)
+	m.RunID = "20260810T020304Z-fedcba98"
+
+	validation, err := (extractStage{}).ValidateResume(context.Background(), env, m)
+	if err != nil {
+		t.Fatalf("ValidateResume() error = %v", err)
+	}
+	if !validation.Resumable {
+		t.Fatalf("validation = %#v, want resumable", validation)
+	}
+	definition := env.Config.Pipeline.Notarius.Outputs["npc_registry"]
+	definitions := map[string]artifacts.ExtractionArtifactDefinition{
+		"npc_registry": {
+			LaneID: definition.LaneID, PipelineID: env.Config.Pipeline.Notarius.PipelineID,
+			MediaType: definition.MediaType, SchemaID: definition.SchemaID,
+			SchemaVersion: definition.SchemaVersion, ModuleKey: definition.ModuleKey,
+		},
+	}
+	catalog := artifacts.NewArtifactCatalog()
+	if err := catalog.RegisterExtractionArtifacts(definitions); err != nil {
+		t.Fatalf("RegisterExtractionArtifacts() error = %v", err)
+	}
+	catalog.HydrateExtractionArtifacts(sessionPathsForEnv(env, m.SessionID), m, definitions)
+	entry, ok := catalog.Lookup(artifacts.ExtractionArtifactSourceID("npc_registry"))
+	if !ok || !entry.Available || entry.Path != result.Outputs[0].AbsolutePath || entry.ProducerRunID != producerRunID {
+		t.Fatalf("hydrated extraction entry = %#v, %v", entry, ok)
+	}
+}
+
+func TestExtractStageResumeValidationRejectsObsoleteResults(t *testing.T) {
+	tests := []struct {
+		name   string
+		mutate func(*testing.T, *Env, *manifest.Manifest)
+	}{
+		{name: "disabled", mutate: func(_ *testing.T, env *Env, _ *manifest.Manifest) {
+			env.Config.Pipeline.Notarius.Enabled = false
+		}},
+		{name: "config changed", mutate: func(_ *testing.T, env *Env, _ *manifest.Manifest) {
+			env.Config.Pipeline.Notarius.PipelineID = "changed"
+		}},
+		{name: "missing lane", mutate: func(t *testing.T, _ *Env, m *manifest.Manifest) {
+			if err := os.Remove(m.Stages["extract"].Outputs[0].LocalPath); err != nil {
+				t.Fatalf("Remove(lane) error = %v", err)
+			}
+		}},
+		{name: "tampered lane", mutate: func(t *testing.T, _ *Env, m *manifest.Manifest) {
+			if err := os.WriteFile(m.Stages["extract"].Outputs[0].LocalPath, []byte(`{"tampered":true}`), 0o644); err != nil {
+				t.Fatalf("WriteFile(lane) error = %v", err)
+			}
+		}},
+		{name: "incompatible contract", mutate: func(_ *testing.T, _ *Env, m *manifest.Manifest) {
+			m.Stages["extract"].Outputs[0].Contract.SchemaVersion = "v2"
+		}},
+		{name: "missing source", mutate: func(_ *testing.T, _ *Env, m *manifest.Manifest) {
+			m.Stages["extract"].Outputs = m.Stages["extract"].Outputs[1:]
+		}},
+		{name: "producer mismatch", mutate: func(_ *testing.T, _ *Env, m *manifest.Manifest) {
+			m.Stages["extract"].Outputs[0].ProducerRunID = "different-run"
+		}},
+		{name: "provenance mismatch", mutate: func(_ *testing.T, _ *Env, m *manifest.Manifest) {
+			m.Stages["extract"].Outputs[0].ExternalProvenance.RunID = "different-run"
+		}},
+		{name: "missing index", mutate: func(t *testing.T, _ *Env, m *manifest.Manifest) {
+			index := m.Stages["extract"].Outputs[1]
+			if err := os.Remove(index.LocalPath); err != nil {
+				t.Fatalf("Remove(index) error = %v", err)
+			}
+		}},
+	}
+	for _, test := range tests {
+		t.Run(test.name, func(t *testing.T) {
+			env, m, _ := setupExtractEnv(t)
+			seedSucceededExtractResult(t, env, m)
+			test.mutate(t, env, m)
+
+			validation, err := (extractStage{}).ValidateResume(context.Background(), env, m)
+			if err != nil {
+				t.Fatalf("ValidateResume() error = %v", err)
+			}
+			if validation.Resumable || validation.Reason == "" || len(validation.Reason) > maxResumeReasonLength {
+				t.Fatalf("validation = %#v, want bounded non-resumable result", validation)
+			}
+		})
+	}
+}
+
+func TestExtractStageResumeValidationRejectsUnsafePathWithError(t *testing.T) {
+	env, m, _ := setupExtractEnv(t)
+	seedSucceededExtractResult(t, env, m)
+	prior := *m.Stages["extract"]
+	m.Stages["extract"].Outputs[0].LocalPath = filepath.Join(env.Config.Pipeline.Workspace.Root, "outside.json")
+
+	if _, err := (extractStage{}).ValidateResume(context.Background(), env, m); err == nil || !strings.Contains(err.Error(), "unsafe") {
+		t.Fatalf("ValidateResume() error = %v, want unsafe path error", err)
+	}
+	if m.Stages["extract"].Status != prior.Status || m.Stages["extract"].Error != prior.Error {
+		t.Fatalf("validation mutated stage record: %#v", m.Stages["extract"])
+	}
+}
+
+func seedSucceededExtractResult(t *testing.T, env *Env, m *manifest.Manifest) {
+	t.Helper()
+	producerRunID := m.RunID
+	result, err := (extractStage{}).Run(context.Background(), env, m)
+	if err != nil {
+		t.Fatalf("Run() error = %v", err)
+	}
+	recordSucceededExtractResult(m, producerRunID, result)
+}
+
+func recordSucceededExtractResult(m *manifest.Manifest, producerRunID string, result *StageResult) {
+	records := make([]manifest.ArtifactRecord, 0, len(result.Outputs))
+	for _, output := range result.Outputs {
+		records = append(records, manifest.ArtifactRecord{
+			Kind: output.Kind, SourceID: output.SourceID, LocalPath: output.AbsolutePath,
+			Contract: output.Contract, ExternalProvenance: output.ExternalProvenance,
+			ProducerRunID: producerRunID, Checksum: output.Checksum,
+		})
+	}
+	m.MarkStageSucceeded("extract", time.Now().UTC(), records)
+	m.Stages["extract"].Metadata = result.Metadata
+}
+
+type extractFixture struct {
+	workspace string
+	campaign  string
+	sessionID string
+	runID     string
+	inputPath string
+}
+
+func extractFixtureFromEnv(t *testing.T, env *Env, m *manifest.Manifest) extractFixture {
+	t.Helper()
+	paths := sessionPathsForEnv(env, m.SessionID)
+	return extractFixture{
+		workspace: paths.WorkspaceRoot, campaign: m.Campaign, sessionID: m.SessionID,
+		runID: m.RunID, inputPath: filepath.Join(paths.ArtifactsDir, "trimmed.from-manifest.json"),
+	}
+}
+
+func setupExtractEnv(t *testing.T) (*Env, *manifest.Manifest, *notarius.FakeRunner) {
+	t.Helper()
+	workspace := t.TempDir()
+	campaign := "campaign-a"
+	sessionID := "2026-08-09"
+	runID := "20260809T010203Z-abcdef12"
+	store := artifacts.NewLocalStore(workspace)
+	paths, err := store.EnsureLayoutFor(campaign, sessionID)
+	if err != nil {
+		t.Fatalf("EnsureLayoutFor() error = %v", err)
+	}
+	inputPath := filepath.Join(paths.ArtifactsDir, "trimmed.from-manifest.json")
+	if err := os.WriteFile(inputPath, []byte(`{"segments":[{"id":1}]}`), 0o644); err != nil {
+		t.Fatalf("WriteFile(input) error = %v", err)
+	}
+	configPath := filepath.Join(workspace, "notarius.yml")
+	if err := os.WriteFile(configPath, []byte("pipelines: {}\n"), 0o644); err != nil {
+		t.Fatalf("WriteFile(config) error = %v", err)
+	}
+	workingDirectory := filepath.Join(workspace, "notarius-work")
+	if err := os.Mkdir(workingDirectory, 0o755); err != nil {
+		t.Fatalf("Mkdir(working directory) error = %v", err)
+	}
+	binary := filepath.Join(workspace, "notarius")
+	if err := os.WriteFile(binary, []byte("#!/bin/sh\nexit 0\n"), 0o755); err != nil {
+		t.Fatalf("WriteFile(binary) error = %v", err)
+	}
+	notariusConfig := &config.NotariusConfig{
+		Enabled: true, Binary: binary, ConfigPath: configPath, PipelineID: "dnd-session",
+		Timeout: "45m", WorkingDirectory: workingDirectory,
+		Outputs: map[string]config.NotariusOutputConfig{
+			"npc_registry": {
+				LaneID: "npc-registry", MediaType: "application/json",
+				SchemaID: "notarius.dnd.npc_registry", SchemaVersion: "v1", ModuleKey: "dnd/npc-registry",
+			},
+		},
+	}
+	m := manifest.New(sessionID, time.Now().UTC())
+	m.Campaign = campaign
+	m.RunID = runID
+	m.MarkStageSucceeded("trim", time.Now().UTC(), []manifest.ArtifactRecord{{
+		Kind: artifactmodel.TranscriptOutputKindFinalTrimmed, SourceID: artifactmodel.SourceTranscriptFinalTrimmed,
+		LocalPath: inputPath,
+	}})
+
+	outputRoot := artifacts.SessionRunNotariusOutputRootForCampaign(workspace, campaign, sessionID, runID)
+	bundle := filepath.Join(outputRoot, "notarius-run-1")
+	if err := os.MkdirAll(filepath.Join(bundle, "lanes"), 0o755); err != nil {
+		t.Fatalf("MkdirAll(bundle lanes) error = %v", err)
+	}
+	if err := os.MkdirAll(filepath.Join(bundle, "unknown"), 0o755); err != nil {
+		t.Fatalf("MkdirAll(bundle unknown) error = %v", err)
+	}
+	files := map[string]string{
+		"index.json":                 `{"manifest_file":"manifest.json","output_files":[{"lane_id":"npc-registry","file":"lanes/npc.json","media_type":"application/json","module_key":"dnd/npc-registry","schema_id":"notarius.dnd.npc_registry","schema_version":"v1","future_field":true},{"lane_id":"unconfigured","file":"lanes/unconfigured.json"}],"rejected_file":"rejected.json","warnings_file":"warnings.json","future_field":true}`,
+		"manifest.json":              `{}`,
+		"rejected.json":              `{"rejected":[]}`,
+		"warnings.json":              `{"warnings":[]}`,
+		"lanes/npc.json":             `{"npcs":[]}`,
+		"lanes/unconfigured.json":    `{"spells":[]}`,
+		"chunk-map.json":             `{"chunks":[]}`,
+		"evidence-context.json":      `{"source_units":[]}`,
+		"unknown/private-debug.json": `{"private":true}`,
+	}
+	for relative, content := range files {
+		if err := os.WriteFile(filepath.Join(bundle, filepath.FromSlash(relative)), []byte(content), 0o644); err != nil {
+			t.Fatalf("WriteFile(%q) error = %v", relative, err)
+		}
+	}
+	fake := &notarius.FakeRunner{Result: notarius.RunResult{
+		Receipt: notarius.Receipt{
+			SchemaVersion: notarius.ReceiptSchemaVersion, RunID: "notarius-run-1", PipelineID: "dnd-session",
+			OutputDirectory: bundle, IndexFile: "index.json", NormalizedOutputCount: 2,
+			RejectedOutputCount: 1, WarningCount: 1, ValidationStatus: "rejected",
+		},
+		BundleRoot: bundle,
+		Index: notarius.Index{
+			Path: filepath.Join(bundle, "index.json"), RejectedPath: filepath.Join(bundle, "rejected.json"),
+			WarningsPath: filepath.Join(bundle, "warnings.json"),
+			Lanes: []notarius.LaneDescriptor{
+				{
+					LaneID: "npc-registry", File: "lanes/npc.json", Path: filepath.Join(bundle, "lanes", "npc.json"),
+					MediaType: "application/json", ModuleKey: "dnd/npc-registry",
+					SchemaID: "notarius.dnd.npc_registry", SchemaVersion: "v1",
+				},
+				{LaneID: "unconfigured", File: "lanes/unconfigured.json", Path: filepath.Join(bundle, "lanes", "unconfigured.json")},
+			},
+		},
+		Rejections: []notarius.RejectionSummary{{LaneID: "optional", ReasonCode: "optional_rejected"}},
+		Warnings:   []notarius.WarningSummary{{Scope: "lane:npc-registry", ReasonCode: "normalized_name"}},
+	}}
+	env := &Env{
+		Config: &config.Config{
+			Pipeline: &config.PipelineConfig{Workspace: config.WorkspaceConfig{Root: workspace}, Notarius: notariusConfig},
+			Session:  &config.SessionConfig{SessionID: sessionID, Campaign: campaign},
+		},
+		ArtifactStore: store,
+		Notarius:      fake,
+	}
+	return env, m, fake
+}

internal/stage/placeholders.go

@@ -74,6 +74,7 @@ func All() []Stage {
 		polishStage{},
 		normalizeStage{},
 		trimStage{},
+		extractStage{},
 		renderStage{},
 		analyzeStage{},
 		publishStage{},

internal/stage/placeholders_test.go

@@ -113,7 +113,7 @@ func TestStagesReturnExpectedMetadata(t *testing.T) {
 	}
 
 	m := manifest.New("2026-05-03", time.Now().UTC())
-	for _, name := range []string{"prepare", "transcribe", "merge", "polish", "normalize", "trim", "render", "analyze"} {
+	for _, name := range []string{"prepare", "transcribe", "merge", "polish", "normalize", "trim", "extract", "render", "analyze"} {
 		m.MarkStageSucceeded(name, time.Now().UTC(), nil)
 	}
 	m.RunID = "20260516T000000Z-abcdef12"
@@ -206,6 +206,12 @@ func TestStagesReturnExpectedMetadata(t *testing.T) {
 			}
 			continue
 		}
+		if s.Name() == "extract" {
+			if result.Disposition != StageDispositionSkipped || result.SkipReason != extractSkipReason {
+				t.Fatalf("extract result = %#v, want disabled self-skip", result)
+			}
+			continue
+		}
 		if s.Name() == "render" {
 			if result.Metadata["stage"] != "render" {
 				t.Fatalf("render metadata = %#v, want stage=render", result.Metadata)

internal/stage/publish.go

@@ -124,7 +124,12 @@ func (publishStage) Run(ctx context.Context, env *Env, m *manifest.Manifest) (*S
 	if err != nil {
 		return nil, fmt.Errorf("publish: collect previous files: %w", err)
 	}
-	runtimeCatalog, err := buildPublishRuntimeArtifactCatalog(sessionPaths, env.Config.Pipeline.Scriptorium)
+	runtimeCatalog, err := buildPublishRuntimeArtifactCatalog(
+		sessionPaths,
+		m,
+		env.Config.Pipeline.Scriptorium,
+		env.Config.Pipeline.Notarius,
+	)
 	if err != nil {
 		return nil, fmt.Errorf("publish: build runtime artifact catalog: %w", err)
 	}
@@ -361,10 +366,11 @@ func resolvePublishOutputs(
 	lockSet := publishLockSet(locks)
 	selectedSet := publishSelectedArtifactSet(selectedArtifactKeys)
 	configuredOutputs := configuredOutputPathMapFromCatalog(catalog)
+	extractionOutputs := extractionOutputSetFromCatalog(catalog)
 	for _, rule := range rules {
 		source := strings.TrimSpace(rule.Source)
 		required := rule.Required == nil || *rule.Required
-		dest, err := resolvePublishOutputDest(rule, configuredOutputs)
+		dest, err := resolvePublishOutputDest(rule, configuredOutputs, extractionOutputs)
 		if err != nil {
 			return nil, nil, nil, nil, fmt.Errorf("source %q: %w", source, err)
 		}
@@ -454,8 +460,8 @@ func publishLockSet(locks []config.PublishLockRule) map[string]config.PublishLoc
 	return out
 }
 
-func resolvePublishOutputDest(rule config.PublishOutputRule, configured map[string]string) (string, error) {
-	return artifactpolicy.ResolvePublishedDestination(rule.Source, rule.Dest, configured)
+func resolvePublishOutputDest(rule config.PublishOutputRule, configured map[string]string, extractions map[string]struct{}) (string, error) {
+	return artifactpolicy.ResolvePublishedDestinationWithExtractions(rule.Source, rule.Dest, configured, extractions)
 }
 
 func configuredOutputPathMapFromCatalog(catalog *artifacts.ArtifactCatalog) map[string]string {
@@ -472,14 +478,36 @@ func configuredOutputPathMapFromCatalog(catalog *artifacts.ArtifactCatalog) map[
 	return out
 }
 
+func extractionOutputSetFromCatalog(catalog *artifacts.ArtifactCatalog) map[string]struct{} {
+	out := map[string]struct{}{}
+	if catalog == nil {
+		return out
+	}
+	for _, entry := range catalog.ListExtraction() {
+		if strings.TrimSpace(entry.ExtractionKey) != "" {
+			out[entry.ExtractionKey] = struct{}{}
+		}
+	}
+	return out
+}
+
 func buildPublishRuntimeArtifactCatalog(
 	paths artifacts.SessionPaths,
+	m *manifest.Manifest,
 	scriptoriumCfg *config.ScriptoriumConfig,
+	notariusCfg *config.NotariusConfig,
 ) (*artifacts.ArtifactCatalog, error) {
 	catalog := artifacts.NewArtifactCatalog()
 	if err := catalog.RegisterBuiltIns(); err != nil {
 		return nil, err
 	}
+	extractionDefinitions := artifacts.ExtractionDefinitionsFromConfig(notariusCfg)
+	if err := catalog.RegisterExtractionArtifacts(extractionDefinitions); err != nil {
+		return nil, err
+	}
+	if notariusCfg != nil && notariusCfg.Enabled {
+		catalog.HydrateExtractionArtifacts(paths, m, extractionDefinitions)
+	}
 	if scriptoriumCfg == nil {
 		return catalog, nil
 	}
@@ -545,19 +573,7 @@ func collectPublishRunFiles(runRoot, manifestPath string) ([]publishUploadFile,
 		if walkErr != nil {
 			return walkErr
 		}
-		if d.IsDir() {
-			if path == runRoot {
-				return nil
-			}
-			relDir, err := filepath.Rel(runRoot, path)
-			if err != nil {
-				return fmt.Errorf("relative dir from %q to %q: %w", runRoot, path, err)
-			}
-			relDir = filepath.ToSlash(relDir)
-			// Preserve existing behavior: audio is not uploaded in publish run record.
-			if relDir == "audio" || strings.HasPrefix(relDir, "audio/") {
-				return filepath.SkipDir
-			}
+		if path == runRoot {
 			return nil
 		}
 		rel, err := filepath.Rel(runRoot, path)
@@ -565,6 +581,15 @@ func collectPublishRunFiles(runRoot, manifestPath string) ([]publishUploadFile,
 			return fmt.Errorf("relative path from %q to %q: %w", runRoot, path, err)
 		}
 		rel = filepath.ToSlash(rel)
+		if publishRunPathExcluded(rel) {
+			if d.IsDir() {
+				return filepath.SkipDir
+			}
+			return nil
+		}
+		if d.IsDir() {
+			return nil
+		}
 		files = append(files, publishUploadFile{
 			RelativePath: rel,
 			LocalPath:    path,
@@ -604,6 +629,11 @@ func collectPublishRunFiles(runRoot, manifestPath string) ([]publishUploadFile,
 	return files, nil
 }
 
+func publishRunPathExcluded(rel string) bool {
+	return rel == "audio" || strings.HasPrefix(rel, "audio/") ||
+		rel == "extract/notarius-output" || strings.HasPrefix(rel, "extract/notarius-output/")
+}
+
 func collectPublishPreviousFiles(previousDir string) ([]publishUploadFile, error) {
 	previousDir = filepath.Clean(strings.TrimSpace(previousDir))
 	if previousDir == "" {

internal/stage/publish_test.go

@@ -7,11 +7,13 @@ import (
 	"os"
 	"path/filepath"
 	"reflect"
+	"sort"
 	"strings"
 	"testing"
 	"time"
 
 	"gitea.maximumdirect.net/eric/narratio/internal/adapters/storage"
+	"gitea.maximumdirect.net/eric/narratio/internal/artifactmodel"
 	"gitea.maximumdirect.net/eric/narratio/internal/artifacts"
 	"gitea.maximumdirect.net/eric/narratio/internal/config"
 	"gitea.maximumdirect.net/eric/narratio/internal/manifest"
@@ -63,8 +65,27 @@ func TestPublishFailsWhenPrerequisiteNotSucceeded(t *testing.T) {
 }
 
 func TestPublishUploadsRunRecordPublishedOutputsAndCurrentPointer(t *testing.T) {
-	env, m, _ := publishFixture(t)
+	env, m, runRoot := publishFixture(t)
 	fake := env.ObjectStore.(*storage.FakeBackend)
+	lanePath := configurePublishExtractionFixture(t, env, m)
+	durableBundleRoot := filepath.Dir(filepath.Dir(lanePath))
+	runBundleRoot := filepath.Join(runRoot, "extract", "notarius-output", "notarius-run-1")
+	for rel, contents := range map[string]string{
+		"index.json":                     `{"lanes":[]}`,
+		"manifest.json":                  `{"run_id":"notarius-run-1"}`,
+		"rejected.json":                  `[]`,
+		"warnings.json":                  `[]`,
+		"lanes/encounters.json":          `{"encounters":[]}`,
+		"pipeline/chunk-map.json":        `{"chunks":[]}`,
+		"pipeline/evidence-context.json": `{"evidence":[]}`,
+		"unknown/notes.txt":              "internal bundle note\n",
+	} {
+		writeStageTestFile(t, filepath.Join(runBundleRoot, filepath.FromSlash(rel)), contents)
+	}
+	writeStageTestFile(t, filepath.Join(runRoot, "extract", "notarius.receipt.json"), `{"run_id":"notarius-run-1"}`)
+	writeStageTestFile(t, filepath.Join(runRoot, "extract", "notarius.stderr.log"), "notarius diagnostic\n")
+	writeStageTestFile(t, filepath.Join(runRoot, "extract", "notarius-output-copy", "keep.json"), "{}\n")
+	writeStageTestFile(t, filepath.Join(runRoot, "archive", "notarius-output", "keep.json"), "{}\n")
 
 	result, err := publishStage{}.Run(context.Background(), env, m)
 	if err != nil {
@@ -75,6 +96,10 @@ func TestPublishUploadsRunRecordPublishedOutputsAndCurrentPointer(t *testing.T)
 	sessionPrefix := m.S3SessionPrefix
 	wantRunUploads := []string{
 		"analyze/outputs/artifacts/session_recap.md",
+		"archive/notarius-output/keep.json",
+		"extract/notarius-output-copy/keep.json",
+		"extract/notarius.receipt.json",
+		"extract/notarius.stderr.log",
 		"merge/config/seriatim.generated.yml",
 		"prepare/inputs/session.yml",
 		"prepare/outputs/audio/speaker.flac",
@@ -84,12 +109,24 @@ func TestPublishUploadsRunRecordPublishedOutputsAndCurrentPointer(t *testing.T)
 		"transcribe/outputs/transcripts/raw/speaker.json",
 		"trim/outputs/transcripts/final.trimmed.json",
 	}
+	sort.Strings(wantRunUploads)
 	for _, rel := range wantRunUploads {
 		key := runPrefix + rel
 		if _, ok := fake.Objects[key]; !ok {
 			t.Fatalf("missing run upload key %q", key)
 		}
 	}
+	for key := range fake.Objects {
+		if strings.HasPrefix(key, runPrefix+"extract/notarius-output/") {
+			t.Fatalf("run-local Notarius bundle member was uploaded at %q", key)
+		}
+	}
+	for _, upload := range fake.Uploads {
+		localPath := filepath.Clean(upload.LocalPath)
+		if localPath == durableBundleRoot || strings.HasPrefix(localPath, durableBundleRoot+string(filepath.Separator)) {
+			t.Fatalf("durable Notarius bundle member was implicitly uploaded from %q", upload.LocalPath)
+		}
+	}
 
 	trimmedKey := sessionPrefix + "transcripts/final.trimmed.json"
 	recapKey := sessionPrefix + "artifacts/session_recap.md"
@@ -134,6 +171,12 @@ func TestPublishUploadsRunRecordPublishedOutputsAndCurrentPointer(t *testing.T)
 	if result.Metadata["previous_files_uploaded"] != 0 {
 		t.Fatalf("metadata previous_files_uploaded = %#v, want 0", result.Metadata["previous_files_uploaded"])
 	}
+	if result.Metadata["run_files_uploaded"] != len(wantRunUploads) {
+		t.Fatalf("metadata run_files_uploaded = %#v, want %d", result.Metadata["run_files_uploaded"], len(wantRunUploads))
+	}
+	if got := result.Metadata["run_uploaded_paths"]; !reflect.DeepEqual(got, wantRunUploads) {
+		t.Fatalf("metadata run_uploaded_paths = %#v, want %#v", got, wantRunUploads)
+	}
 }
 
 func TestPublishUploadsPreviousCacheWhenPresent(t *testing.T) {
@@ -198,6 +241,126 @@ func TestPublishUsesCustomOutputRules(t *testing.T) {
 	}
 }
 
+func TestPublishUploadsExplicitExtractionAndPreservesManifestMetadata(t *testing.T) {
+	env, m, _ := publishFixture(t)
+	lanePath := configurePublishExtractionFixture(t, env, m)
+	env.SelectedArtifactKeys = []string{"session_recap"}
+	env.Config.Pipeline.Publish.Outputs = []config.PublishOutputRule{
+		{Source: artifacts.ExtractionArtifactSourceID("encounters"), Dest: "artifacts/encounters.json", Required: boolPtr(true)},
+	}
+
+	result, err := publishStage{}.Run(context.Background(), env, m)
+	if err != nil {
+		t.Fatalf("Run() error = %v", err)
+	}
+	fake := env.ObjectStore.(*storage.FakeBackend)
+	durableBundleRoot := filepath.Dir(filepath.Dir(lanePath))
+	publishedKey := m.S3SessionPrefix + "artifacts/encounters.json"
+	if got := string(fake.Objects[publishedKey].Data); got != `{"encounters":[]}` {
+		t.Fatalf("published extraction = %q", got)
+	}
+	if _, ok := fake.Objects[m.S3SessionPrefix+"artifacts/notarius/index.json"]; ok {
+		t.Fatal("Notarius index was implicitly published")
+	}
+	for key := range fake.Objects {
+		if strings.Contains(key, "/notarius/") {
+			t.Fatalf("Notarius bundle member was implicitly published at %q", key)
+		}
+	}
+	for _, upload := range fake.Uploads {
+		localPath := filepath.Clean(upload.LocalPath)
+		if (localPath == durableBundleRoot || strings.HasPrefix(localPath, durableBundleRoot+string(filepath.Separator))) && localPath != filepath.Clean(lanePath) {
+			t.Fatalf("durable Notarius bundle member other than selected lane was uploaded from %q", upload.LocalPath)
+		}
+	}
+	if result.Metadata["published_files_uploaded"] != 1 {
+		t.Fatalf("published_files_uploaded = %#v, want 1", result.Metadata["published_files_uploaded"])
+	}
+	if uploads := fake.Uploads; len(uploads) == 0 || uploads[len(uploads)-1].Key != m.S3SessionPrefix+"current/run_id.txt" {
+		t.Fatalf("last upload = %#v, want current run pointer", uploads)
+	}
+
+	var current manifest.Manifest
+	if err := json.Unmarshal(fake.Objects[m.S3SessionPrefix+"current/manifest.json"].Data, &current); err != nil {
+		t.Fatalf("unmarshal current manifest: %v", err)
+	}
+	extractRecord := current.Stages["extract"]
+	if extractRecord == nil || len(extractRecord.Outputs) != 2 {
+		t.Fatalf("extract record = %#v", extractRecord)
+	}
+	lane := extractRecord.Outputs[0]
+	if lane.LocalPath != lanePath || lane.Contract == nil || lane.Contract.SchemaID != "encounters" ||
+		lane.ExternalProvenance == nil || lane.ExternalProvenance.RunID != "notarius-run-1" {
+		t.Fatalf("serialized extraction metadata = %#v", lane)
+	}
+}
+
+func TestPublishRequiredInvalidExtractionFails(t *testing.T) {
+	env, m, _ := publishFixture(t)
+	lanePath := configurePublishExtractionFixture(t, env, m)
+	env.Config.Pipeline.Publish.Outputs = []config.PublishOutputRule{
+		{Source: artifacts.ExtractionArtifactSourceID("encounters"), Dest: "artifacts/encounters.json", Required: boolPtr(true)},
+	}
+	writeStageTestFile(t, lanePath, `{"tampered":true}`)
+
+	_, err := publishStage{}.Run(context.Background(), env, m)
+	if err == nil || !strings.Contains(err.Error(), `required output source unavailable: "narratio.extraction.encounters"`) {
+		t.Fatalf("Run() error = %v, want unavailable extraction failure", err)
+	}
+	if len(env.ObjectStore.(*storage.FakeBackend).Uploads) != 0 {
+		t.Fatal("publish uploaded files after extraction validation failed")
+	}
+}
+
+func TestPublishDisabledExtractionConfigurationIsUnavailable(t *testing.T) {
+	env, m, _ := publishFixture(t)
+	configurePublishExtractionFixture(t, env, m)
+	env.Config.Pipeline.Notarius.Enabled = false
+	env.Config.Pipeline.Publish.Outputs = []config.PublishOutputRule{
+		{Source: artifacts.ExtractionArtifactSourceID("encounters"), Dest: "artifacts/encounters.json", Required: boolPtr(true)},
+	}
+
+	_, err := publishStage{}.Run(context.Background(), env, m)
+	if err == nil || !strings.Contains(err.Error(), `required output source unavailable: "narratio.extraction.encounters"`) {
+		t.Fatalf("Run() error = %v, want unavailable disabled extraction", err)
+	}
+}
+
+func TestPublishOptionalMissingExtractionIsSkipped(t *testing.T) {
+	env, m, _ := publishFixture(t)
+	lanePath := configurePublishExtractionFixture(t, env, m)
+	env.Config.Pipeline.Publish.Outputs = []config.PublishOutputRule{
+		{Source: artifacts.ExtractionArtifactSourceID("encounters"), Dest: "artifacts/encounters.json", Required: boolPtr(false)},
+	}
+	if err := os.Remove(lanePath); err != nil {
+		t.Fatal(err)
+	}
+
+	result, err := publishStage{}.Run(context.Background(), env, m)
+	if err != nil {
+		t.Fatalf("Run() error = %v", err)
+	}
+	if got := result.Metadata["skipped_optional_outputs"].([]string); !reflect.DeepEqual(got, []string{"artifacts/encounters.json"}) {
+		t.Fatalf("skipped_optional_outputs = %#v", got)
+	}
+}
+
+func TestPublishArtifactSelectionDoesNotFilterExtractionOutputs(t *testing.T) {
+	env, m, _ := publishFixture(t)
+	configurePublishExtractionFixture(t, env, m)
+	env.SelectedArtifactKeys = []string{"session_recap"}
+	env.Config.Pipeline.Publish.Outputs = []config.PublishOutputRule{
+		{Source: artifacts.ExtractionArtifactSourceID("encounters"), Dest: "artifacts/encounters.json", Required: boolPtr(true)},
+	}
+
+	if _, err := (publishStage{}).Run(context.Background(), env, m); err != nil {
+		t.Fatalf("Run() error = %v", err)
+	}
+	if _, ok := env.ObjectStore.(*storage.FakeBackend).Objects[m.S3SessionPrefix+"artifacts/encounters.json"]; !ok {
+		t.Fatal("explicit extraction output was filtered by Scriptorium artifact selection")
+	}
+}
+
 func TestPublishSkipsOptionalMissingOutput(t *testing.T) {
 	env, m, _ := publishFixture(t)
 	env.Config.Pipeline.Publish.Outputs = []config.PublishOutputRule{
@@ -591,6 +754,56 @@ func publishFixture(t *testing.T) (*Env, *manifest.Manifest, string) {
 	return env, m, runRoot
 }
 
+func configurePublishExtractionFixture(t *testing.T, env *Env, m *manifest.Manifest) string {
+	t.Helper()
+	env.Config.Pipeline.Notarius = &config.NotariusConfig{
+		Enabled: true, PipelineID: "campaign.extract",
+		Outputs: map[string]config.NotariusOutputConfig{
+			"encounters": {
+				LaneID: "encounters", MediaType: "application/json", SchemaID: "encounters",
+				SchemaVersion: "1", ModuleKey: "encounters",
+			},
+		},
+	}
+	paths := publishSessionPaths(env, m)
+	producerRunID := "extract-run-1"
+	bundleRoot := filepath.Join(paths.ArtifactsDir, "notarius", producerRunID)
+	lanePath := filepath.Join(bundleRoot, "lanes", "encounters.json")
+	indexPath := filepath.Join(bundleRoot, "index.json")
+	writeStageTestFile(t, lanePath, `{"encounters":[]}`)
+	writeStageTestFile(t, indexPath, `{"lanes":[]}`)
+	writeStageTestFile(t, filepath.Join(bundleRoot, "manifest.json"), `{"run_id":"notarius-run-1"}`)
+	writeStageTestFile(t, filepath.Join(bundleRoot, "rejected.json"), `[]`)
+	writeStageTestFile(t, filepath.Join(bundleRoot, "warnings.json"), `[]`)
+	writeStageTestFile(t, filepath.Join(bundleRoot, "pipeline", "chunk-map.json"), `{"chunks":[]}`)
+	writeStageTestFile(t, filepath.Join(bundleRoot, "unknown", "notes.txt"), "internal bundle note\n")
+	laneChecksum, err := artifacts.SHA256File(lanePath)
+	if err != nil {
+		t.Fatal(err)
+	}
+	indexChecksum, err := artifacts.SHA256File(indexPath)
+	if err != nil {
+		t.Fatal(err)
+	}
+	m.Stages["extract"] = &manifest.StageRecord{
+		Name: "extract", Status: manifest.StatusSucceeded,
+		Metadata: map[string]any{
+			"narratio_run_id": producerRunID, "bundle_root": bundleRoot,
+			"receipt": map[string]any{"run_id": "notarius-run-1", "pipeline_id": "campaign.extract"},
+		},
+		Outputs: []manifest.ArtifactRecord{
+			{
+				Kind: "notarius_lane", SourceID: artifacts.ExtractionArtifactSourceID("encounters"), LocalPath: lanePath,
+				ProducerRunID: producerRunID, Checksum: laneChecksum,
+				Contract:           &artifactmodel.ContractMetadata{MediaType: "application/json", SchemaID: "encounters", SchemaVersion: "1", ModuleKey: "encounters"},
+				ExternalProvenance: &artifactmodel.ExternalProvenance{System: "notarius", RunID: "notarius-run-1", PipelineID: "campaign.extract", ArtifactID: "encounters"},
+			},
+			{Kind: "notarius_index", LocalPath: indexPath, ProducerRunID: producerRunID, Checksum: indexChecksum},
+		},
+	}
+	return lanePath
+}
+
 type publishedOutputFailingStore struct {
 	delegate *storage.FakeBackend
 	failKey  string

internal/stage/stage.go

@@ -3,8 +3,11 @@ package stage
 import (
 	"context"
 	"log/slog"
+	"strings"
+	"unicode/utf8"
 
 	"gitea.maximumdirect.net/eric/narratio/internal/adapters/audita"
+	"gitea.maximumdirect.net/eric/narratio/internal/adapters/notarius"
 	"gitea.maximumdirect.net/eric/narratio/internal/adapters/notify"
 	"gitea.maximumdirect.net/eric/narratio/internal/adapters/scriptorium"
 	"gitea.maximumdirect.net/eric/narratio/internal/adapters/seriatim"
@@ -26,6 +29,7 @@ type Env struct {
 	WhisperX    whisperx.Client
 	Seriatim    seriatim.Runner
 	Audita      audita.Runner
+	Notarius    notarius.Runner
 	Scriptorium scriptorium.Runner
 	ObjectStore storage.ObjectStore
 	Notifier    notify.Sender
@@ -44,8 +48,61 @@ type Stage interface {
 	Run(ctx context.Context, env *Env, m *manifest.Manifest) (*StageResult, error)
 }
 
+const maxResumeReasonLength = 512
+
+// ResumeValidation reports whether a previously succeeded stage can be reused.
+type ResumeValidation struct {
+	Resumable bool
+	Reason    string
+}
+
+// Normalized returns a result with a bounded reason and no reason on success.
+func (r ResumeValidation) Normalized() ResumeValidation {
+	if r.Resumable {
+		return Resumable()
+	}
+	return NonResumable(r.Reason)
+}
+
+// ResumeValidator is implemented by stages that validate persisted success before reuse.
+type ResumeValidator interface {
+	ValidateResume(ctx context.Context, env *Env, m *manifest.Manifest) (ResumeValidation, error)
+}
+
+// Resumable reports a successful resume validation.
+func Resumable() ResumeValidation {
+	return ResumeValidation{Resumable: true}
+}
+
+// NonResumable reports a bounded reason that persisted success must be rerun.
+func NonResumable(reason string) ResumeValidation {
+	reason = strings.TrimSpace(reason)
+	if reason == "" {
+		reason = "persisted stage result is not reusable"
+	}
+	if len(reason) > maxResumeReasonLength {
+		cutoff := maxResumeReasonLength
+		for cutoff > 0 && !utf8.ValidString(reason[:cutoff]) {
+			cutoff--
+		}
+		reason = reason[:cutoff]
+	}
+	return ResumeValidation{Reason: reason}
+}
+
+// StageDisposition describes the outcome of a stage that returned without an error.
+type StageDisposition string
+
+const (
+	// StageDispositionSucceeded is the zero value so existing stages remain successful.
+	StageDispositionSucceeded StageDisposition = ""
+	StageDispositionSkipped   StageDisposition = "skipped"
+)
+
 // StageResult is the declared output of a stage execution.
 type StageResult struct {
+	Disposition      StageDisposition
+	SkipReason       string
 	Outputs          []artifacts.Ref
 	Logs             []string
 	GeneratedConfigs []string