Fixed a bug in the S3 credential loading for the restore command

docs/cli.md

@@ -6,7 +6,7 @@
 narratio run --session-id 2026-04-04
 ```
 
-This command uses default config discovery for `pipeline.yml` and `session.yml`; both files must be discoverable unless you pass explicit `--config` and `--session` paths.
+This command uses default discovery for `pipeline.yml` and `session.yml`; both files must be discoverable unless you pass explicit `--config` and `--session` paths.
 
 ## Command Overview
 
@@ -17,6 +17,7 @@ Implemented commands:
 - `resume`: continue from first non-succeeded stage unless forced.
 - `status`: read and print stage statuses from an existing manifest.
 - `run-stage`: execute exactly one stage.
+- `restore`: restore durable local session state from the committed remote archive state.
 
 Unknown commands print usage and exit non-zero.
 
@@ -68,6 +69,15 @@ Valid stage names:
 - `archive`
 - `notify`
 
+### `restore`
+
+- `--config <path>`
+- `--session <path>`
+- `--session-id <value>`
+- `--dry-run`: plan restore actions without writing local files.
+- `--force`: overwrite local conflicting files with remote archive files.
+- `--include-audio`: include durable archived `audio/**` files in restore scope.
+
 ### `status`
 
 - `--manifest <path>`: required manifest path.
@@ -178,6 +188,39 @@ Common failure cases:
 - unknown stage name.
 - using `--artifacts` with any non-`analyze` stage.
 
+### `restore`
+
+Purpose:
+- Restore durable session state (`manifest.json`, `transcripts/**`, `artifacts/**`, and optional `audio/**`) from the committed remote archive current state.
+
+Syntax:
+
+```bash
+narratio restore [--config <pipeline.yml>] [--session <session.yml>] [--session-id <id>] [--dry-run] [--force] [--include-audio]
+```
+
+Success output (dry-run):
+- `Restore plan for <campaign>/<session_id>`
+- `Remote run: <run_id>`
+- `Would download: <n>`
+- `Would skip unchanged: <n>`
+- `Conflicts: <n>`
+
+Success output (non-dry-run):
+- `Restored session archive for <campaign>/<session_id>`
+- `Remote run: <run_id>`
+- `Downloaded: <n>`
+- `Skipped unchanged: <n>`
+- `Conflicts: <n>`
+
+Common failure cases:
+- storage backend is not configured.
+- remote `current/run_id.txt` missing/empty.
+- remote `current/manifest.json` missing or invalid.
+- remote manifest session/campaign mismatch.
+- local conflicts without `--force`.
+- session lock conflict.
+
 ## Common Workflows
 
 Default-discovery run:
@@ -204,6 +247,19 @@ Run only analyze stage with selected artifacts:
 narratio run-stage --session-id 2026-04-04 --artifacts player_handout analyze
 ```
 
+Preview restore actions without writes:
+
+```bash
+narratio restore --session-id 2026-04-04 --dry-run
+```
+
+Restore and then force analyze:
+
+```bash
+narratio restore --session-id 2026-04-04
+narratio run-stage --session-id 2026-04-04 --force analyze
+```
+
 ## Diagnostic / Recovery Commands
 
 Inspect stage status:
@@ -219,4 +275,4 @@ Get manifest path from previous output:
 
 - `--artifacts` filters which configured artifacts are executable when analyze runs.
 - `--artifacts` does not imply `--force`.
-- If analyze is already `succeeded` and `--force` is not set, runner-level skip still applies.
+- if analyze is already `succeeded` and `--force` is not set, runner-level skip still applies.

docs/config.md

@@ -13,6 +13,7 @@ These commands load and validate both files before running:
 - `narratio plan`
 - `narratio resume`
 - `narratio run-stage`
+- `narratio restore`
 
 Behavior:
 
@@ -23,28 +24,28 @@ Behavior:
 
 ## 2. Config file discovery
 
-Pipeline config lookup for `run`, `plan`, `resume`, and `run-stage`:
+Pipeline config lookup for `run`, `plan`, `resume`, `run-stage`, and `restore`:
 
-- If `--config <path>` is provided, that path is used.
+- if `--config <path>` is provided, that path is used.
-- If omitted, Narratio searches in order:
+- if omitted, Narratio searches in order:
   1. `/usr/local/etc/narratio/pipeline.yml`
   2. `/etc/narratio/pipeline.yml`
-- First existing file wins.
+- first existing file wins.
 
 ## 3. Session file discovery and templating
 
-Session config lookup for `run`, `plan`, `resume`, and `run-stage`:
+Session config lookup for `run`, `plan`, `resume`, `run-stage`, and `restore`:
 
-- If `--session <path>` is provided, that path is used.
+- if `--session <path>` is provided, that path is used.
-- If omitted, Narratio searches in order:
+- if omitted, Narratio searches in order:
   1. `./session.yml`
   2. `/usr/local/etc/narratio/session.yml`
   3. `/etc/narratio/session.yml`
-- First existing file wins.
+- first existing file wins.
 
 Template behavior:
 
-- Supported placeholders:
+- supported placeholders:
   - `{{session_id}}`
   - `{{ session_id }}`
 - `--session-id <value>` supplies the placeholder value.
@@ -106,11 +107,11 @@ archive:
   enabled: true
   upload_run: true
   promote_artifacts:
-    - from: transcripts/trimmed.json
+    - source: narratio.transcript.trimmed
-      to: transcripts/trimmed.json
+      dest: transcripts/trimmed.json
       required: true
-    - from: artifacts/session_recap.md
+    - source: narratio.artifact.session_recap
-      to: artifacts/session_recap.md
+      dest: artifacts/session_recap.md
       required: true
 
 whisperx:
@@ -130,8 +131,10 @@ scriptorium:
 
 Operational notes:
 
-- archive promotion is explicit and path-based via `archive.promote_artifacts`.
+- archive promotion is explicit and source-based via `archive.promote_artifacts`.
+- `source` is required; `dest` is optional and derived when omitted.
 - Narratio does not auto-promote all generated analyze artifacts.
+- `restore` reads the same config/session inputs and restore scope is bounded by committed archive current state.
 
 ## 7. Full pipeline reference
 
@@ -154,9 +157,9 @@ Operational notes:
 | `pipeline.spool.delete_audio_after_archive` | bool | No | `false` |
 | `pipeline.archive.enabled` | bool | No | `true` |
 | `pipeline.archive.upload_run` | bool | No | `true` |
-| `pipeline.archive.promote_artifacts[]` | list | No | trimmed + session_recap rules |
+| `pipeline.archive.promote_artifacts[]` | list | No | trimmed transcript rule |
-| `pipeline.archive.promote_artifacts[].from` | string | Yes (per rule) | none |
+| `pipeline.archive.promote_artifacts[].source` | string | Yes (per rule) | none |
-| `pipeline.archive.promote_artifacts[].to` | string | Yes (per rule) | none |
+| `pipeline.archive.promote_artifacts[].dest` | string | No | derived from source |
 | `pipeline.archive.promote_artifacts[].required` | bool | No | `true` |
 | `pipeline.whisperx.transcribe_url` | string | Yes | none |
 | `pipeline.whisperx.language` | string | No | `en` |
@@ -248,6 +251,29 @@ Allowed `pipeline.scriptorium.artifacts.<name>.inputs.<key>.source` values:
 - `narratio.bounds.session`
 - `narratio.artifact.<configured_artifact_key>`
 
+`pipeline.archive.promote_artifacts[].source` values:
+
+- `narratio.transcript.merged`
+- `narratio.transcript.polished`
+- `narratio.transcript.full`
+- `narratio.transcript.trimmed`
+- `narratio.bounds.session`
+- `narratio.artifact.<configured_artifact_key>`
+
+Archive promotion destination rules:
+
+- `dest` must be a clean relative path (not absolute, no traversal).
+- duplicate `dest` values are rejected.
+- if `dest` is omitted:
+  - built-in sources derive their canonical destination path;
+  - configured sources derive from `pipeline.scriptorium.artifacts.<name>.output_path`;
+  - derivation failure is a config validation error.
+
+Restore-related implications:
+
+- restore remote identity requires archive S3 identity to resolve (`pipeline.storage.s3.bucket` and session prefix derivation inputs).
+- restore scope considers only committed current state and durable paths (`manifest.json`, `transcripts/**`, `artifacts/**`, optional `audio/**`).
+
 ## 8. Full session reference
 
 | Path | Type | Required | Default |

docs/internal/README.md

@@ -4,7 +4,7 @@
 Developers and LLM coding agents changing Narratio internals.
 
 ## Scope
-Implementation-accurate contracts for workspace/state, manifests, stages, artifact resolution, and adapter boundaries.
+Implementation-accurate contracts for workspace/state, manifests, stages, artifact resolution, adapter boundaries, and restore command behavior.
 
 ## Component Docs
 - `adapters.md`: external adapter map, runtime wiring, and boundary ownership.
@@ -12,6 +12,7 @@ Implementation-accurate contracts for workspace/state, manifests, stages, artifa
 - `manifest.md`: session/run manifest schemas, lifecycle transitions, and persistence semantics.
 - `artifacts.md`: built-in artifact registry, runtime artifact catalog, and source-resolution behavior.
 - `workspace.md`: local state model, manifests, run-local layout, promotion, and cleanup invariants.
+- `command-restore.md`: restore command discovery/planning/execution/reporting contract.
 - `stage-prepare.md`: input materialization and provenance capture.
 - `stage-transcribe.md`: WhisperX transcript generation.
 - `stage-merge.md`: Seriatim normalization + merge.

docs/internal/command-restore.md

@@ -0,0 +1,86 @@
+# Internal: Command Restore
+
+## Purpose
+Define the implemented `narratio restore` command contract: committed remote-state discovery, deterministic planning, safe file installation, conflict policy, and restore reporting.
+
+## Inputs and outputs
+Inputs:
+- CLI flags: `--config`, `--session`, `--session-id`, `--dry-run`, `--force`, `--include-audio`.
+- Resolved/validated `pipeline.yml` and `session.yml`.
+- Configured remote object store.
+- Remote committed current-state markers (`current/run_id.txt`, `current/manifest.json`).
+
+Outputs:
+- Dry-run summary to stdout (plan + counts).
+- Non-dry-run completion summary to stdout.
+- Local durable session files restored under canonical session root.
+- Non-dry-run restore report at `reports/restore-latest.json`.
+
+## Boundaries
+Owns:
+- Restore command flag parsing and command wiring.
+- Remote current-state discovery and identity validation.
+- Restore plan construction and conflict classification.
+- Restore execution for planned downloads.
+- Restore report model and persistence.
+
+Does not own:
+- Stage execution orchestration (`run`, `resume`, `run-stage`).
+- Archive publish behavior (owned by archive stage).
+- Storage transport implementation details (owned by storage adapters).
+
+## Config fields used
+- Config/session discovery and templating fields consumed by all commands.
+- `pipeline.workspace.root` (local restore target root).
+- `pipeline.storage.*` (remote backend + archive identity derivation).
+- `pipeline.storage.s3.*` identity components used by archive prefix helpers.
+- `session.session_id`
+- `session.campaign`
+
+## External adapters used
+- `storage.ObjectStore` for `Exists`, `List`, `Download`.
+- `artifacts.Store` (`LocalStore`) for layout and session lock management.
+- `manifest.LocalStore` for manifest decode/validation and identity checks.
+
+## State and manifest behavior
+- Restore is not a pipeline run and does not create a run manifest.
+- Restore uses committed remote current state only:
+  - `current/run_id.txt` must exist and be non-empty.
+  - `current/manifest.json` must decode and match requested session/campaign.
+- Non-dry-run writes restore files to canonical session paths.
+- Manifest install behavior:
+  - validated before replacement.
+  - installed last among download actions.
+  - existing local manifest is preserved if restored manifest validation/install fails.
+- Non-dry-run report persists summary/action status metadata in `reports/restore-latest.json`.
+
+## Skip and resume behavior
+- Restore does not participate in stage skip/resume decisions.
+- Restore provides durable local state so subsequent stage commands can resume or rerun based on restored manifest state.
+- Dry-run is read-only and returns plan output only.
+
+## Failure behavior
+- Fails when storage backend is unavailable or archive identity cannot be resolved.
+- Fails when remote current pointer/manifest is missing or invalid.
+- Fails when remote manifest identity mismatches requested campaign/session.
+- Fails on local conflicts unless `--force` is set.
+- Fails fast on session lock acquisition conflict for non-dry-run execution.
+- On execution failure, previously installed files remain; no rollback is performed.
+
+## Tests to inspect before changing
+- `internal/app/restore_test.go`
+- `internal/app/restore_discovery_test.go`
+- `internal/app/restore_plan_test.go`
+- `internal/app/restore_execution_test.go`
+- `internal/app/restore_workflow_test.go`
+- `internal/artifacts/archive_identity_test.go`
+
+## Architectural invariants
+- Restore relies on centralized archive identity/key helpers (`internal/artifacts`) rather than ad hoc key building.
+- `current/run_id.txt` is the remote commit marker; restore must not infer committed state from incidental files.
+- Local path mapping is traversal-safe and constrained to session root.
+- Restore scope is deterministic and path-classified:
+  - include `manifest.json`, `transcripts/**`, `artifacts/**`
+  - include `audio/**` only with `--include-audio`
+  - exclude `runs/**`, `logs/**`, `reports/**`, `config/**`, `inputs/**`
+- Command remains standalone; no implicit `run --restore` behavior.

docs/internal/stage-archive.md

@@ -7,7 +7,7 @@ Publish run records and promoted session artifacts to object storage, then atomi
 Inputs:
 - session manifest and prerequisite stage records
 - run root contents under `runs/{run_id}/`
-- promotion sources from session root (`archive.promote_artifacts`)
+- promotion rules with artifact `source` IDs and archive `dest` paths (`archive.promote_artifacts`)
 
 Outputs:
 - uploaded run files under `{session_prefix}/runs/{run_id}/...`

docs/operations.md

@@ -6,7 +6,7 @@ For field-level configuration, see [docs/config.md](./config.md). For full comma
 
 ## Normal workflow (S3-first path)
 
-1. Upload session `.flac` files to object storage under the session audio prefix.
+1. Upload session `.flac` files to object storage under the configured session audio prefix.
 2. Run Narratio:
 
 ```bash
@@ -21,6 +21,37 @@ Notes:
 - default config/session discovery applies unless `--config` and `--session` are passed.
 - S3 audio mode requires `session.inputs.audio_s3.prefix` and valid object-store access.
 
+## Restore workflow
+
+Use restore when local durable session state is missing or stale and archive current state is authoritative.
+
+Dry-run (no local writes):
+
+```bash
+narratio restore --session-id 2026-04-04 --dry-run
+```
+
+Execution:
+
+```bash
+narratio restore --session-id 2026-04-04
+```
+
+Post-restore analyze rerun pattern:
+
+```bash
+narratio run-stage --session-id 2026-04-04 --force analyze
+```
+
+Restore source-of-truth:
+- remote commit marker: `current/run_id.txt`
+- remote current manifest: `current/manifest.json`
+
+Restore default scope:
+- includes `manifest.json`, `transcripts/**`, `artifacts/**`
+- includes `audio/**` only with `--include-audio`
+- excludes `runs/**`, `logs/**`, `reports/**`, `config/**`, `inputs/**`, and `current/**` (except remote `current/manifest.json` as source)
+
 ## Local filesystem layout and state artifacts
 
 Session root:
@@ -29,7 +60,7 @@ Session root:
 Primary state:
 - `manifest.json`: session-level stage state.
 - `runs/{run_id}/manifest.json`: invocation-level state.
-- `.lock`: session lock while a run is active.
+- `.lock`: session lock while a modifying command is active.
 
 Canonical session directories:
 - `inputs/`
@@ -48,6 +79,7 @@ Run-local stage directories:
 Behavior:
 - directory creation is idempotent.
 - stage outputs are generally generated run-local first, then promoted to canonical paths on success.
+- restore installs downloaded files to canonical session paths and does not recreate historical run sandboxes.
 
 ## Analyze artifact execution lifecycle
 
@@ -84,12 +116,14 @@ Publish order:
 
 `current/run_id.txt` is the remote commit marker.
 
-Archive promotion is explicit and path-based:
+Archive promotion is explicit and source-based:
 - Narratio does not auto-promote all generated analyze artifacts.
+- each rule resolves `source` through the artifact resolver/catalog model, then uploads to `dest`.
 - missing required promotion sources fail archive stage.
 - missing optional promotion sources are skipped.
+- invalid resolved artifacts fail archive stage.
 
-## Resume, retry, and safe rerun behavior
+## Resume, retry, restore, and safe rerun behavior
 
 Default skip:
 - `run` and `run-stage` skip already-succeeded stages unless `--force` is set.
@@ -98,6 +132,11 @@ Resume:
 - `resume` starts at first non-succeeded stage.
 - `resume --force` runs full stage order.
 
+Restore conflict policy:
+- restore classifies local differences as conflicts.
+- without `--force`, restore fails when conflicts exist.
+- with `--force`, conflicting local files are overwritten by remote archive files.
+
 Forced reruns:
 - force-rerunning an upstream succeeded stage marks downstream succeeded stages as `stale`.
 
@@ -123,13 +162,18 @@ No cleanup for failed/incomplete/unarchived/archive-skipped runs.
 
 ## Failure and recovery playbooks
 
-After failure, Narratio keeps:
+After run failure, Narratio keeps:
 - session manifest
 - run manifest
 - run-local artifacts/logs/config/reports
 
 Failed or incomplete runs remain local-only.
 
+After restore failure:
+- already-installed restore files remain in place.
+- restore does not roll back prior successful installs.
+- existing local manifest is preserved if restored manifest validation/install fails.
+
 Recommended recovery:
 
 1. inspect state:
@@ -138,8 +182,27 @@ Recommended recovery:
 narratio status --manifest <manifest-path>
 ```
 
-2. fix root cause (config/input/credentials/service availability).
+2. for restore-specific checks, run:
-3. continue with `resume`, or targeted `run-stage --force` followed by `resume`.
+
+```bash
+narratio restore --session-id 2026-04-04 --dry-run
+```
+
+3. fix root cause (config/input/credentials/storage/service availability).
+4. continue with `resume`, or targeted `run-stage --force` followed by `resume`.
+
+## Restore report
+
+Non-dry-run restore writes a durable report at:
+- `reports/restore-latest.json`
+
+Report content includes:
+- identity (`campaign`, `session_id`, `run_id`)
+- mode flags (`dry_run`, `force`, `include_audio`)
+- plan counts and execution counts
+- per-action status
+
+Dry-run does not write restore report files.
 
 ## Operational caveats
 
@@ -147,3 +210,4 @@ narratio status --manifest <manifest-path>
 - local and S3 audio input modes are mutually exclusive.
 - archive publish requires upstream stages through `analyze` to be `succeeded`.
 - required promotion rules can fail when selected analyze artifacts did not generate a required file path.
+- restore requires configured remote object storage and committed remote current state.

docs/roadmap/restore.md

@@ -0,0 +1,715 @@
+# Roadmap: `narratio restore` Subcommand
+
+## Status
+
+Implemented through Step 8. This document remains as roadmap and design history for the restore feature, and as the home for future restore-related ideas (for example `run --restore`).
+
+## Summary
+
+Add a new `narratio restore` subcommand that hydrates a local session workspace from the current committed remote archive state.
+
+The primary operator workflow is:
+
+```bash
+narratio restore --session-id 2026-04-04
+narratio run-stage --force analyze
+```
+
+This should allow a new machine with no local workspace state to restore the durable session manifest, transcripts, and generated artifacts from S3, then generate new Scriptorium artifacts without re-running transcription, merge, normalize, polish, or trim.
+
+This is intentionally a separate command. Do not fold this behavior into the `prepare` stage. The existing `prepare` stage should remain focused on materializing configured local/S3 inputs for a pipeline run.
+
+## Goals
+
+- Add a first-class `narratio restore` command.
+- Restore the current committed remote session state into the canonical local session workspace.
+- Use the existing object storage adapter boundary.
+- Preserve archive commit semantics: only restore from a remote state that has a valid current commit marker.
+- Restore durable session-level outputs needed for downstream stages, especially `analyze`.
+- Provide safe conflict behavior by default.
+- Support `--dry-run`, `--force`, and `--include-audio`.
+- Keep the implementation explicit, testable, and narrow.
+
+## Non-goals
+
+- Do not make `restore` a pipeline stage.
+- Do not change the `prepare` stage behavior as part of this work.
+- Do not add implicit restore behavior to `narratio run` in this implementation.
+- Do not restore historical run-local sandboxes by default.
+- Do not implement a generic remote synchronization engine.
+- Do not implement bidirectional sync.
+- Do not delete local files merely because they are absent remotely.
+- Do not merge remote and local manifests in the first implementation.
+- Do not require live S3 for the ordinary unit test suite.
+
+## Future work explicitly out of scope
+
+A future change may add:
+
+```bash
+narratio run --restore
+```
+
+That future flag should run `narratio restore` before starting the normal pipeline. Mention this as future work in roadmap/docs if useful, but do not implement it now.
+
+## Existing architecture to preserve
+
+### `prepare` remains input materialization
+
+The `prepare` stage currently materializes required session inputs into canonical local workspace paths and records input provenance. It owns local copying/materialization of config and audio inputs, including S3 audio download when `session.inputs.audio_s3.prefix` is configured. It does not own transcript generation/processing or archive publish behavior.
+
+`restore` should not be implemented by expanding `prepare`. It should be an app-level command that reuses shared helpers where appropriate.
+
+### Workspace model
+
+The local durable session workspace is campaign-aware:
+
+```text
+{workspace.root}/work/{campaign}/{session_id}/
+```
+
+It contains durable session paths such as:
+
+```text
+manifest.json
+inputs/
+audio/
+transcripts/
+artifacts/
+reports/
+logs/
+config/
+current/
+runs/
+```
+
+Run-local sandboxes live below:
+
+```text
+runs/{run_id}/
+```
+
+Restore should target durable session-level paths, not old run-local stage sandboxes.
+
+### Storage boundary
+
+The storage adapter owns object-store primitives only: `List`, `Download`, `Upload`, and `Exists`.
+
+The storage adapter must not infer root prefixes, campaign names, session IDs, run IDs, or archive layout. Restore code must construct full bucket-relative keys before calling storage.
+
+### Archive commit boundary
+
+A remote run is current only after the archive stage has uploaded the run record, promoted outputs, `current/manifest.json`, and finally `current/run_id.txt`.
+
+`current/run_id.txt` is the final remote commit marker and must be written last.
+
+Restore must not treat incomplete, skipped, failed, or uncommitted archive attempts as current remote state.
+
+## User-facing command
+
+Add:
+
+```bash
+narratio restore [flags]
+```
+
+The command should use the same configuration/session discovery conventions as `run`, `plan`, `resume`, and `run-stage` where practical:
+
+```bash
+narratio restore --config /path/to/pipeline.yml --session ./session.yml --session-id 2026-04-04
+```
+
+Required effective inputs:
+
+- resolved pipeline config;
+- resolved session config;
+- `session.campaign`;
+- `session.session_id`;
+- configured remote storage backend.
+
+Supported flags:
+
+```text
+--config <path>       Existing pipeline config path behavior.
+--session <path>      Existing session config path behavior.
+--session-id <value>  Existing session template behavior.
+--dry-run             Plan restore actions without writing local files.
+--force               Overwrite conflicting local files with remote files.
+--include-audio       Include archived session-level audio files.
+```
+
+Do not add `--restore` to `run` in this implementation.
+
+## Default restore scope
+
+By default, restore:
+
+1. Validates and reads the current remote commit marker.
+2. Downloads the current remote manifest into the local session manifest path.
+3. Downloads durable transcript files.
+4. Downloads durable generated artifact files.
+
+Default included remote/local durable paths:
+
+```text
+manifest.json                 from remote current manifest
+transcripts/**
+artifacts/**
+```
+
+Default excluded paths:
+
+```text
+audio/**                      unless --include-audio is passed
+runs/**                       always excluded for this implementation
+logs/**                       excluded for this implementation
+reports/**                    excluded for this implementation unless needed for current manifest validation
+config/**                     excluded for this implementation
+inputs/**                     excluded for this implementation
+current/**                    remote control metadata only; do not mirror blindly
+```
+
+If the existing archive implementation stores promoted files in a different remote layout, use the existing archive/path helpers and current archive semantics rather than inventing a parallel layout.
+
+## Remote state discovery
+
+Implement restore around the current committed archive state.
+
+Expected algorithm:
+
+1. Resolve pipeline/session config.
+2. Ensure storage is configured.
+3. Ensure local workspace layout exists.
+4. Acquire the session lock.
+5. Build the remote session archive prefix using the same helpers/policy used by archive code.
+6. Check for the remote `current/run_id.txt` commit marker.
+7. Read the committed run ID.
+8. Download `current/manifest.json` to a temporary file.
+9. Validate that the manifest is parseable and belongs to the requested campaign/session.
+10. Build a restore plan from the committed remote state.
+11. Execute the restore plan unless `--dry-run` is set.
+12. Emit a concise summary.
+
+Important: `current/run_id.txt` is the commit marker. Do not restore from a remote session prefix merely because files exist under `transcripts/` or `artifacts/`.
+
+## Restore planning
+
+Create a planning layer before writing files.
+
+A restore plan entry should include at least:
+
+```go
+type RestoreAction struct {
+    Kind        RestoreActionKind
+    RemoteKey   string
+    LocalPath   string
+    Size        int64
+    ETag        string
+    ExistsLocal bool
+    SameLocal   bool
+    Conflict    bool
+    Reason      string
+}
+```
+
+Suggested action kinds:
+
+```text
+download
+skip_same
+skip_missing_optional
+conflict
+```
+
+The restore planner should be deterministic:
+
+- sort remote objects by key;
+- sort planned actions by local path or stable restore priority;
+- write/report stable output for tests.
+
+## Conflict and overwrite policy
+
+Default behavior should be safe.
+
+For each planned file:
+
+```text
+local absent:
+  download
+
+local present and same as remote:
+  skip
+
+local present and different:
+  conflict; fail restore unless --force is set
+
+--force:
+  overwrite local conflicting files with remote versions
+
+--dry-run:
+  do not write any files; report what would happen
+```
+
+The first implementation may use size and checksum/hash comparison where available. If remote ETag cannot be treated as a content hash, compare by downloading to a temporary file and hashing locally before deciding whether a local file is the same. Prefer correctness over assuming provider-specific ETag semantics.
+
+Do not delete local files that are not present remotely.
+
+## File writing and transactionality
+
+Restore should avoid partial writes.
+
+Implementation requirements:
+
+- download each remote object to a temporary file under the session workspace or OS temp dir;
+- validate downloaded content where possible before replacing local files;
+- create parent directories as needed;
+- atomically rename/copy into place only after successful download;
+- do not overwrite local files unless `--force` is set;
+- if a later file fails, preserve already-restored files but return a failure summary;
+- never corrupt an existing local manifest on failed manifest download/parse.
+
+Manifest restore is especially sensitive:
+
+- download remote `current/manifest.json` to a temporary file;
+- parse and validate it;
+- if no local manifest exists, install it;
+- if a local manifest exists and is equivalent, skip;
+- if a local manifest exists and differs, fail unless `--force` is set;
+- with `--force`, replace the local manifest with the remote manifest after validation;
+- do not attempt a manifest merge in the initial implementation.
+
+## Manifest semantics
+
+`restore` is not a pipeline run and should not mark stages as running/succeeded/failed.
+
+The restored remote manifest becomes the local session manifest. That is what allows a subsequent command such as:
+
+```bash
+narratio run-stage --force analyze
+```
+
+to see existing upstream stage state and canonical durable outputs.
+
+Do not create a new run manifest for `restore`.
+
+It is acceptable to write a restore diagnostic report outside the manifest, for example:
+
+```text
+reports/restore-latest.json
+```
+
+or a timestamped report, if that pattern fits the existing codebase. The report must not contain secrets.
+
+## Local workspace locking
+
+`restore` should acquire the same session lock used by ordinary pipeline operations before modifying session workspace state.
+
+If the lock is held, fail fast with the same lock-conflict behavior used elsewhere.
+
+`--dry-run` may still acquire the lock for consistency, but it is acceptable to avoid the lock if the codebase already has a clear read-only command pattern. Prefer safety and simplicity.
+
+## Audio behavior
+
+By default, do not restore audio.
+
+If `--include-audio` is passed:
+
+- restore archived durable session-level audio files only;
+- do not use run-scoped spool paths;
+- do not mutate or delete spool state;
+- do not infer original `session.inputs.audio_s3.prefix` behavior;
+- respect the same conflict/force/dry-run behavior used for transcripts/artifacts.
+
+If the archive does not contain durable audio files, `--include-audio` should report that no archived audio was found rather than failing, unless the final implementation chooses to treat explicit audio restore as required. Prefer non-failure for absent archived audio unless tests or existing archive semantics suggest otherwise.
+
+## Remote object selection
+
+Prefer using manifest/artifact metadata when it reliably identifies durable outputs.
+
+Also support listing committed durable archive prefixes so restore can retrieve all top-level session artifacts that may not yet be fully represented in manifest metadata.
+
+The implementation should inspect existing archive code before choosing the final object-selection method. Do not duplicate archive path construction.
+
+Recommended selection priority:
+
+1. Remote current manifest path.
+2. Durable promoted transcript/artifact outputs recorded in the manifest or archive metadata, if available.
+3. Objects under committed durable `transcripts/` and `artifacts/` archive prefixes.
+4. Objects under durable `audio/` only when `--include-audio` is passed.
+
+Always exclude:
+
+```text
+runs/**
+```
+
+for the first implementation.
+
+## Package and file organization
+
+Expected areas to inspect and update:
+
+```text
+cmd/narratio/
+internal/app/
+internal/adapters/storage/
+internal/artifacts/
+internal/manifest/
+docs/
+examples/
+```
+
+Suggested implementation shape:
+
+```text
+internal/app/restore.go
+internal/app/restore_test.go
+
+internal/archive/restore/
+  planner.go
+  executor.go
+  report.go
+  keys.go
+  *_test.go
+```
+
+The exact package name may vary. Use whatever best fits the existing repository, but keep these boundaries clear:
+
+- `internal/app` owns CLI command handling, config/session loading, lock acquisition, and wiring.
+- Restore planning/execution owns remote key discovery, conflict detection, downloads, and reporting.
+- `internal/adapters/storage` remains a transport boundary only.
+- Workspace/path helpers remain centralized; do not scatter string concatenation.
+
+If the repository already has an `internal/archive` or archive-stage helper package, prefer extending that rather than creating a conflicting package layout.
+
+## CLI output
+
+`narratio restore` should print a concise operator summary.
+
+Example successful output:
+
+```text
+Restored session archive for sample-campaign/2026-04-04
+Remote run: 20260504T031500Z-a1b2c3
+Downloaded: 4
+Skipped unchanged: 2
+Conflicts: 0
+```
+
+Example dry run:
+
+```text
+Restore plan for sample-campaign/2026-04-04
+Remote run: 20260504T031500Z-a1b2c3
+Would download: transcripts/processed.json
+Would download: transcripts/trimmed.json
+Would skip unchanged: artifacts/session_recap.md
+```
+
+Example conflict:
+
+```text
+restore conflict: local artifacts/session_recap.md differs from remote archive; rerun with --force to overwrite
+```
+
+Do not print transcript or artifact content.
+
+## Error behavior
+
+Fail clearly when:
+
+- storage backend is not configured;
+- S3 bucket/config is missing or invalid;
+- remote current commit marker is missing;
+- remote current manifest is missing;
+- remote manifest is invalid;
+- remote manifest does not match requested campaign/session;
+- local file differs from remote and `--force` is not set;
+- a required remote object download fails;
+- a local path would escape the session workspace;
+- a remote key maps to an unsafe local path.
+
+Skip or report non-fatal conditions when:
+
+- optional audio restore finds no archived audio;
+- an included prefix has no objects;
+- a local file already matches the remote file.
+
+## Path safety
+
+Every restored file must map to a safe path under the session root.
+
+Validation rules:
+
+- local restore paths must be relative to the session root;
+- reject absolute paths;
+- reject `..` traversal;
+- reject paths that escape through symlinks if the codebase has symlink-safe path checks;
+- do not restore remote keys directly without mapping/classification;
+- do not mirror arbitrary remote keys.
+
+## Testing plan
+
+Add focused unit tests. Do not require live S3.
+
+### CLI tests
+
+Add or update `internal/app` command tests for:
+
+- `narratio restore --help`;
+- restore accepts `--config`, `--session`, and `--session-id`;
+- restore accepts `--dry-run`;
+- restore accepts `--force`;
+- restore accepts `--include-audio`;
+- restore fails when storage is not configured;
+- restore does not run pipeline stages.
+
+### Restore planner tests
+
+Test:
+
+- missing `current/run_id.txt` fails;
+- missing `current/manifest.json` fails;
+- invalid manifest fails;
+- wrong campaign/session manifest fails;
+- default scope includes manifest/transcripts/artifacts;
+- default scope excludes audio/logs/reports/config/runs;
+- `--include-audio` includes durable audio;
+- run-local keys are excluded;
+- keys are sorted deterministically;
+- unsafe remote-to-local paths are rejected.
+
+### Conflict policy tests
+
+Test:
+
+- absent local file downloads;
+- matching local file skips;
+- differing local file conflicts by default;
+- `--force` overwrites conflicts;
+- `--dry-run` writes nothing;
+- partial failure does not corrupt an existing local manifest.
+
+### Storage/fake tests
+
+Use fake storage to simulate:
+
+- object listing;
+- object download;
+- missing objects;
+- download failures;
+- metadata/ETag behavior.
+
+### Workspace/lock tests
+
+Test:
+
+- session layout is created before restore;
+- session lock conflict fails;
+- restored files land under the expected campaign/session workspace;
+- no files are written outside the session root.
+
+### Follow-up command workflow test
+
+Add at least one test that simulates:
+
+```bash
+narratio restore --session-id 2026-04-04
+narratio run-stage --force analyze
+```
+
+The test does not need to run real Scriptorium. Use existing fake/stub behavior to verify that restored transcripts and manifest state are sufficient for analyze-stage input resolution.
+
+## Documentation updates when implemented
+
+When the feature is implemented, update current-behavior docs:
+
+```text
+docs/cli.md
+docs/operations.md
+docs/internal/storage.md or docs/internal/archive/restore.md
+```
+
+If the documentation set does not yet have an internal restore document, add one consistent with the existing internal-doc style:
+
+```text
+docs/internal/command-restore.md
+```
+
+or:
+
+```text
+docs/internal/archive-restore.md
+```
+
+Do not document future `narratio run --restore` behavior outside `docs/roadmap/` until implemented.
+
+## Implementation phases
+
+### Phase 1: Audit existing archive and path helpers (completed)
+
+Before coding behavior, inspect:
+
+```text
+internal/app/
+internal/stage/archive*
+internal/adapters/storage/
+internal/artifacts/
+internal/manifest/
+docs/internal/stage-archive.md, if present
+```
+
+Determine:
+
+- exact remote archive key layout;
+- how root prefix/campaign/session are modeled;
+- how current commit marker keys are built;
+- how current manifest is uploaded;
+- where promoted outputs are uploaded;
+- whether helper functions already exist for remote archive keys;
+- whether local workspace path helpers can safely map restore destinations.
+
+Deliverable:
+
+- small code comments or internal helper selection;
+- no large behavior change yet unless required by tests.
+
+### Phase 2: Add CLI surface and command wiring (completed)
+
+Add `narratio restore` command parsing.
+
+Wire flags:
+
+```text
+--config
+--session
+--session-id
+--dry-run
+--force
+--include-audio
+```
+
+Use the existing config/session load path where practical.
+
+Deliverable:
+
+- command exists;
+- help output is sensible;
+- command validates basic inputs;
+- command returns a clear “not yet implemented” or calls an empty planner if phased commits are desired;
+- CLI tests pass.
+
+### Phase 3: Implement remote current-state discovery (completed)
+
+Add restore code that:
+
+- creates an object store from resolved config;
+- builds remote current marker key;
+- reads `current/run_id.txt`;
+- reads/downloads `current/manifest.json`;
+- validates manifest identity;
+- returns remote current-state metadata.
+
+Deliverable:
+
+- fake-storage tests for current-state discovery;
+- no local file writes beyond temporary files.
+
+### Phase 4: Implement restore planning (completed)
+
+Build deterministic restore plans for default scope and `--include-audio`.
+
+Deliverable:
+
+- plan lists manifest, transcript, artifact files;
+- plan excludes run-local data;
+- plan detects local same/conflict/missing states;
+- dry-run output works;
+- no real file overwrite yet except temp comparisons as needed.
+
+### Phase 5: Implement restore execution (completed)
+
+Execute the plan safely:
+
+- create directories;
+- download to temporary files;
+- validate content where practical;
+- atomically install files;
+- enforce default conflict failure;
+- support `--force`;
+- preserve existing manifest unless safe to replace.
+
+Deliverable:
+
+- restore works end-to-end against fake storage;
+- failures are clear and do not corrupt existing local manifest.
+
+### Phase 6: Add restore report and operator summary (completed)
+
+Add concise stdout summary and optional JSON restore report if consistent with project diagnostics.
+
+Deliverable:
+
+- user-friendly output;
+- durable diagnostic report if implemented;
+- no content leakage.
+
+### Phase 7: Workflow integration test (completed)
+
+Add a test for restoring a previous session and then forcing `analyze`.
+
+Deliverable:
+
+- restored manifest/transcripts/artifacts are sufficient for analyze input resolution;
+- no upstream stages rerun;
+- no reliance on live subprocesses or S3.
+
+### Phase 8: Documentation update (completed)
+
+Once implemented, update current-behavior docs and internal command docs.
+
+Also leave future `narratio run --restore` in roadmap only.
+
+## Definition of done
+
+The feature is complete when:
+
+- `narratio restore` exists and is documented.
+- It uses the same config/session discovery semantics as other commands where practical.
+- It requires configured remote storage.
+- It restores only from a committed current archive state.
+- It restores the current manifest, transcripts, and artifacts by default.
+- It restores audio only with `--include-audio`.
+- It excludes run-local sandboxes.
+- It fails on local/remote conflicts by default.
+- `--force` overwrites conflicts.
+- `--dry-run` writes nothing.
+- It uses fake storage in tests.
+- It does not change `prepare` behavior.
+- It does not implement `narratio run --restore`.
+- It avoids AWS SDK leakage outside the storage adapter.
+- It uses centralized path/key helpers rather than scattered string concatenation.
+- `go test ./...` passes.
+
+## Suggested test commands
+
+Run focused tests first:
+
+```bash
+go test ./internal/app -run TestExecute -v
+go test ./internal/adapters/storage -v
+go test ./internal/artifacts -v
+go test ./internal/manifest -v
+```
+
+Then run the full suite:
+
+```bash
+go test ./...
+```
+
+## Suggested commit message
+
+```text
+Add restore subcommand roadmap
+```

docs/roadmap/runtime-artifacts.md

@@ -1,762 +0,0 @@
-# Roadmap: Runtime-Defined Scriptorium Artifacts
-
-## Status
-
-Implementation roadmap for a pre-release hard cutover.
-
-## Purpose
-
-Narratio currently treats artifact generation as a narrow `analyze` stage that supports a hard-coded `session_recap` artifact. This roadmap describes how to generalize artifact generation so operators can define Scriptorium-backed output artifacts at runtime through `pipeline.yml`.
-
-The goal is to keep Narratio as a fixed pipeline orchestrator while making the artifact generation step configurable, composable, deterministic, and easy to regenerate selectively.
-
-## Desired Outcome
-
-Operators should be able to define artifacts such as session recaps, player handouts, NPC summaries, quest logs, entity maps, or other campaign-specific outputs without changing Narratio code.
-
-A configured artifact is declared under:
-
-```text
-pipeline.scriptorium.artifacts.<name>
-```
-
-Each configured artifact becomes a canonical runtime artifact source ID:
-
-```text
-narratio.artifact.<name>
-```
-
-For example:
-
-```yaml
-scriptorium:
-  artifacts:
-    session_recap:
-      enabled: true
-      prompt_id: dnd_session.session_recap
-      output_path: artifacts/session_recap.md
-      inputs:
-        transcript:
-          source: narratio.transcript.trimmed
-          required: true
-```
-
-This artifact is addressable by later artifacts as:
-
-```text
-narratio.artifact.session_recap
-```
-
-A dependent artifact can then consume it explicitly:
-
-```yaml
-scriptorium:
-  artifacts:
-    player_handout:
-      enabled: true
-      depends_on:
-        - session_recap
-      prompt_id: dnd_session.player_handout
-      output_path: artifacts/player_handout.md
-      inputs:
-        recap:
-          source: narratio.artifact.session_recap
-          required: true
-        transcript:
-          source: narratio.transcript.trimmed
-          required: true
-```
-
-## Resolved Design Decisions
-
-The following decisions are settled for the initial implementation:
-
-1. Configured artifact outputs must live under Narratio's internal artifact output directory, initially `artifacts/`.
-2. The artifact output directory should be defined as an internal default in `internal/config/defaults.go`, but no public configuration knob should be exposed yet.
-3. Artifact `output_path` should remain explicit in the initial implementation to avoid guessing file extensions or output formats.
-4. A disabled artifact may still be referenced as an input if its declared output already exists on disk and passes basic validation.
-5. A disabled artifact is not executable during the current analyze run.
-6. Artifact-to-artifact references require an explicit `depends_on` entry. Narratio should fail fast if the dependency declaration is missing.
-7. The manifest remains stage-oriented: `analyze` succeeds or fails as a full stage.
-8. Analyze-stage metadata may record per-artifact output details for provenance and later resolution, but not for intra-stage resume semantics.
-9. `--artifacts` should be added as a CLI filter for selective artifact generation.
-10. `--artifacts` does not imply `--force`; it only changes which configured artifacts are treated as executable when `analyze` actually runs.
-11. Because Narratio is still pre-release, the hard-coded `session_recap` behavior should be removed immediately rather than deprecated gradually.
-
-## Scope
-
-This roadmap covers:
-
-- introducing a runtime artifact catalog;
-- generalizing configured Scriptorium artifact execution;
-- supporting `narratio.artifact.<name>` source IDs;
-- adding explicit artifact dependencies;
-- supporting disabled-but-resolvable artifact inputs;
-- adding selective artifact execution via `--artifacts`;
-- recording generated artifacts in analyze-stage metadata and/or manifest outputs;
-- removing hard-coded `session_recap` behavior;
-- updating tests and documentation.
-
-## Non-Goals
-
-This feature should not turn Narratio into a general workflow engine.
-
-The initial implementation should not add:
-
-- arbitrary shell-command artifacts;
-- arbitrary user-defined stages;
-- loops or conditional branching;
-- automatic archive promotion of generated artifacts;
-- semantic knowledge of particular artifact types;
-- per-artifact resume semantics within a successful or failed analyze stage;
-- automatic dependency inference without `depends_on`.
-
-Narratio should continue to orchestrate a fixed pipeline. The configurable part is the set of Scriptorium artifact invocations performed during the `analyze` stage.
-
-## Current State
-
-Narratio already has several relevant pieces in place:
-
-- `pipeline.scriptorium.artifacts` is modeled as a map of artifact definitions.
-- The Scriptorium adapter already accepts generic run/render requests.
-- The artifact resolver already understands canonical artifact source IDs.
-- The `analyze` stage already resolves inputs, optionally runs render-debug, invokes Scriptorium, verifies output, and records metadata.
-
-The main limitation is that `analyze` currently treats `session_recap` as the only executable artifact and rejects other enabled artifact definitions.
-
-## Target Architecture
-
-### Runtime Artifact Catalog
-
-Introduce a per-run artifact catalog that tracks built-in artifacts and configured artifacts.
-
-Conceptually:
-
-```text
-ArtifactCatalog
-├── built-in artifacts
-│   ├── narratio.transcript.merged
-│   ├── narratio.transcript.polished
-│   ├── narratio.transcript.full
-│   ├── narratio.transcript.trimmed
-│   └── narratio.bounds.session
-│
-└── configured artifacts
-    ├── narratio.artifact.session_recap
-    ├── narratio.artifact.player_handout
-    └── narratio.artifact.npc_summary
-```
-
-The catalog should distinguish between three states:
-
-```text
-planned       valid configured or built-in artifact known to Narratio
-available     artifact has been produced or otherwise resolved
-executable    configured artifact selected for execution in this analyze run
-```
-
-Configured artifacts can be planned without being executable. This distinction is important for disabled artifacts and for `--artifacts` filtering.
-
-### Configured Artifact Source IDs
-
-Configured artifact keys map directly to source IDs:
-
-```text
-pipeline.scriptorium.artifacts.<name>
-→ narratio.artifact.<name>
-```
-
-`session_recap` should no longer be a special built-in analyze artifact. Instead, it is just a conventional configured artifact key:
-
-```yaml
-scriptorium:
-  artifacts:
-    session_recap:
-      enabled: true
-      prompt_id: dnd_session.session_recap
-      output_path: artifacts/session_recap.md
-```
-
-`narratio.artifact.session_recap` remains valid only because `session_recap` is configured.
-
-### Artifact Output Directory
-
-Add an internal default artifact output directory, initially:
-
-```text
-artifacts
-```
-
-This default should live in `internal/config/defaults.go` or the existing equivalent defaults location.
-
-For the initial implementation:
-
-- expose no public config knob for the artifact output directory;
-- require each configured artifact to provide an explicit `output_path`;
-- validate that each configured artifact `output_path` is run-relative;
-- validate that each configured artifact `output_path` is under the internal artifact output directory;
-- reject output paths that escape the run workspace or use path traversal.
-
-This preserves future configurability without forcing Narratio to guess output extensions or formats now.
-
-### Enabled, Disabled, and Selected Artifacts
-
-Configured artifacts should have three distinct execution states:
-
-```text
-enabled by config       artifact has enabled: true
-selected for execution  artifact remains executable after --artifacts filtering
-disabled for execution  artifact is not executable, but may be resolvable from disk
-```
-
-Without `--artifacts`, all configured artifacts with `enabled: true` are selected for execution.
-
-With `--artifacts`, only the named artifacts are selected for execution. All other configured artifacts are treated as disabled for the current analyze invocation, regardless of their configured `enabled` value.
-
-Disabled artifacts may still be resolved as inputs if their configured `output_path` exists on disk and passes validation.
-
-### Disabled Artifact Resolution
-
-If artifact `B` references artifact `A`, and `A` is disabled for execution, Narratio should attempt to resolve `A` from disk.
-
-This should succeed only when:
-
-1. `A` is defined in `pipeline.scriptorium.artifacts`;
-2. `A` has a valid `output_path`;
-3. the output path exists in the current run workspace;
-4. the output is non-empty, or otherwise passes any available artifact-specific validation.
-
-The resolved provenance should make the source clear, for example:
-
-```text
-filesystem.disabled_artifact_output
-```
-
-If the file does not exist or fails validation, the dependent artifact should fail before invoking Scriptorium.
-
-Example error wording:
-
-```text
-artifact player_handout requires narratio.artifact.session_recap, but session_recap is disabled for execution and artifacts/session_recap.md does not exist
-```
-
-### Explicit Dependencies
-
-Artifact-to-artifact references require explicit `depends_on` entries.
-
-If artifact `B` has an input source of `narratio.artifact.A`, then `B.depends_on` must include `A`.
-
-This should fail:
-
-```yaml
-scriptorium:
-  artifacts:
-    player_handout:
-      enabled: true
-      prompt_id: dnd_session.player_handout
-      output_path: artifacts/player_handout.md
-      inputs:
-        recap:
-          source: narratio.artifact.session_recap
-          required: true
-```
-
-This should pass:
-
-```yaml
-scriptorium:
-  artifacts:
-    player_handout:
-      enabled: true
-      depends_on:
-        - session_recap
-      prompt_id: dnd_session.player_handout
-      output_path: artifacts/player_handout.md
-      inputs:
-        recap:
-          source: narratio.artifact.session_recap
-          required: true
-```
-
-`depends_on` values refer to configured artifact keys, not full source IDs.
-
-Dependency validation should fail on:
-
-- references to unknown artifact keys;
-- missing `depends_on` entries for artifact-to-artifact input references;
-- self-dependencies;
-- dependency cycles among executable artifacts.
-
-Dependencies on disabled artifacts are permitted, but the disabled dependency must resolve from disk before the dependent artifact runs.
-
-### Execution Order
-
-The analyze stage should execute selected artifacts in dependency order.
-
-Rules:
-
-- selected artifacts are executable;
-- disabled artifacts are never executed;
-- selected artifacts may depend on other selected artifacts;
-- selected artifacts may depend on disabled artifacts if those disabled artifacts resolve from disk;
-- independent selected artifacts run in deterministic sorted-name order.
-
-Use topological sorting over selected artifacts, while validating dependency references across the full configured artifact set.
-
-### Input Resolution
-
-Input resolution should use the artifact catalog and existing artifact resolver behavior.
-
-For each configured artifact input:
-
-- built-in sources resolve through existing resolver behavior;
-- `previous_session_artifact` preserves existing behavior;
-- `narratio.artifact.<name>` resolves through the runtime artifact catalog;
-- selected dependencies resolve after being produced earlier in the same analyze execution;
-- disabled dependencies resolve from their configured output path on disk;
-- optional missing inputs are omitted;
-- required missing inputs fail before Scriptorium is invoked.
-
-### Analyze Stage Generalization
-
-The `analyze` stage should become the generic Scriptorium artifact stage.
-
-High-level flow:
-
-1. Load configured Scriptorium artifacts.
-2. Apply the `--artifacts` filter, if present.
-3. If no artifacts are selected for execution, return success metadata with `skipped=true`.
-4. Build the runtime artifact catalog.
-5. Validate artifact names, output paths, source IDs, dependencies, selected artifacts, and required fields.
-6. Resolve any disabled dependencies that are required by selected artifacts.
-7. Sort selected artifacts by dependency order.
-8. For each selected artifact:
-   - resolve configured inputs;
-   - build the Scriptorium run request;
-   - optionally run Scriptorium render-debug;
-   - run Scriptorium;
-   - fail on validation-failed result;
-   - verify the output exists and is non-empty;
-   - record artifact output metadata;
-   - register `narratio.artifact.<name>` as available in the catalog.
-9. Return aggregate analyze-stage metadata containing all generated and reused artifacts relevant to the run.
-
-The Scriptorium adapter should remain generic. It should not decide which artifacts run, how dependencies work, or how artifacts are registered.
-
-### Manifest and Metadata
-
-The manifest should remain stage-oriented.
-
-This means:
-
-- `analyze` succeeds or fails as a full stage;
-- if `analyze` has already succeeded and the user does not force it, the runner skips it as a full stage;
-- Narratio should not implement per-artifact resume in the first version.
-
-However, analyze-stage metadata should still record artifact outputs for provenance and future resolution.
-
-Recommended metadata shape:
-
-```json
-{
-  "skipped": false,
-  "artifacts": [
-    {
-      "name": "session_recap",
-      "source_id": "narratio.artifact.session_recap",
-      "output_kind": "scriptorium_artifact",
-      "path": "artifacts/session_recap.md",
-      "prompt_id": "dnd_session.session_recap",
-      "profile_id": "local-gemma-31b",
-      "provenance": "generated.current_analyze_run"
-    },
-    {
-      "name": "player_handout",
-      "source_id": "narratio.artifact.player_handout",
-      "output_kind": "scriptorium_artifact",
-      "path": "artifacts/player_handout.md",
-      "prompt_id": "dnd_session.player_handout",
-      "profile_id": "local-gemma-31b",
-      "provenance": "generated.current_analyze_run"
-    }
-  ],
-  "reused_artifacts": [
-    {
-      "name": "session_recap",
-      "source_id": "narratio.artifact.session_recap",
-      "path": "artifacts/session_recap.md",
-      "provenance": "filesystem.disabled_artifact_output"
-    }
-  ]
-}
-```
-
-The exact struct can differ from this example, but it should preserve:
-
-- artifact name;
-- canonical source ID;
-- output path;
-- prompt/profile provenance for generated artifacts;
-- reused-vs-generated provenance.
-
-### Resume and Force Behavior
-
-Keep resume behavior stage-level.
-
-Recommended semantics:
-
-```text
-No --force, analyze already succeeded:
-  runner skips analyze, regardless of --artifacts.
-
---force, no --artifacts:
-  analyze regenerates all configured artifacts with enabled: true.
-
---force --artifacts player_handout:
-  analyze treats only player_handout as executable.
-  all other configured artifacts are disabled for execution.
-  disabled dependencies may be reused from disk.
-
---artifacts player_handout on a not-yet-completed analyze stage:
-  analyze runs only player_handout.
-  disabled dependencies may be reused from disk.
-```
-
-`--artifacts` should not imply `--force`. It is an execution filter, not a resume override.
-
-### `--artifacts` CLI Flag
-
-Add an `--artifacts` flag to commands that can execute or resume the analyze stage.
-
-The flag should accept one or more configured artifact names. Internally, normalize values to a set of artifact keys.
-
-Recommended behavior:
-
-- validate all requested artifact names against `pipeline.scriptorium.artifacts`;
-- reject unknown artifact names before running stages;
-- treat requested artifacts as the only executable artifacts for the analyze stage;
-- treat all other configured artifacts as disabled for execution;
-- allow disabled artifacts to satisfy dependencies from disk as described above;
-- if `--artifacts` is used while executing a stage other than `analyze`, either reject it or ignore it with a clear validation error. Prefer rejection.
-
-The exact CLI parsing style can follow Narratio's existing conventions. Both comma-separated and repeatable values are acceptable if the CLI package supports them cleanly, but the internal representation should be a set of artifact keys.
-
-### Archive Behavior
-
-Do not automatically archive every generated artifact.
-
-Artifact generation and archive promotion should remain separate concerns. Operators should continue to use `archive.promote_artifacts` to decide which generated files should be promoted or uploaded.
-
-Example:
-
-```yaml
-archive:
-  promote_artifacts:
-    - from: artifacts/session_recap.md
-      to: artifacts/session_recap.md
-      required: true
-    - from: artifacts/player_handout.md
-      to: artifacts/player_handout.md
-      required: false
-```
-
-A later enhancement may add opt-in automatic promotion of configured artifacts, but explicit promotion should remain the default.
-
-## Implementation Plan
-
-### Phase 1: Config Model and Defaults
-
-Add or update the configured artifact model to include:
-
-- `enabled`;
-- `depends_on`;
-- `prompt_id`;
-- `profile_id`;
-- `output_path`;
-- `timeout`;
-- `render_debug`;
-- `inputs`;
-- `vars`.
-
-Add an internal default artifact output directory in `internal/config/defaults.go`, initially set to `artifacts`.
-
-Validation rules:
-
-- artifact names must match a conservative identifier pattern such as `^[a-z][a-z0-9_]*$`;
-- selected/executable artifacts require `prompt_id` and `output_path`;
-- configured artifacts that may be referenced while disabled require `output_path`;
-- configured artifact output paths must be run-relative;
-- configured artifact output paths must live under the internal artifact output directory;
-- configured artifact output paths must not escape the run workspace;
-- `narratio.artifact.<name>` input sources must refer to configured artifact keys;
-- any `narratio.artifact.<name>` input source must have a matching `depends_on` entry;
-- `depends_on` entries must refer to configured artifact keys;
-- dependencies must not contain self-references or executable cycles;
-- input names and var names must remain compatible with the Scriptorium adapter's validation rules;
-- unknown YAML fields must continue to fail strict decode.
-
-Tests:
-
-- valid single configured artifact;
-- valid multiple independent artifacts;
-- valid artifact-to-artifact dependency;
-- valid dependency on disabled artifact with output path;
-- invalid artifact name;
-- missing required fields;
-- output path outside `artifacts/`;
-- dependency on missing artifact;
-- missing `depends_on` for artifact input source;
-- self-dependency;
-- cycle detection;
-- typo in `narratio.artifact.<name>` source;
-- unknown YAML fields still fail strict decode.
-
-### Phase 2: CLI Filtering
-
-Add the `--artifacts` flag and carry the selected artifact set into the run execution options.
-
-Implementation notes:
-
-- parse values according to existing CLI conventions;
-- normalize to artifact key strings;
-- validate against configured artifact definitions after config load;
-- make the selected set available to the analyze stage;
-- reject use with commands or stages where analyze cannot run.
-
-Tests:
-
-- no `--artifacts` means all enabled artifacts are selected;
-- one requested artifact is selected;
-- multiple requested artifacts are selected;
-- unknown requested artifact fails;
-- `--artifacts` does not imply `--force`;
-- `--artifacts` with already-succeeded analyze stage is skipped unless forced;
-- `--artifacts` on unsupported stage command fails clearly.
-
-### Phase 3: Runtime Artifact Catalog
-
-Introduce an internal artifact catalog abstraction.
-
-Responsibilities:
-
-- register built-in artifact definitions;
-- register configured artifact definitions;
-- map configured artifact keys to `narratio.artifact.<name>` IDs;
-- track planned, available, and executable artifact states;
-- expose lookup by canonical source ID;
-- record generated provenance;
-- record disabled-from-disk provenance.
-
-Keep the catalog narrow. It should not execute Scriptorium and should not understand prompt semantics.
-
-Tests:
-
-- built-in source lookup;
-- configured source registration;
-- duplicate/conflicting source handling;
-- planned but unavailable artifact lookup;
-- selected artifact state;
-- disabled artifact state;
-- registering an artifact as available after generation;
-- registering a disabled artifact as available from disk;
-- resolving a configured artifact from analyze metadata if that behavior is implemented.
-
-### Phase 4: Resolver Integration
-
-Update artifact resolution so configured artifact IDs are resolved through the runtime catalog.
-
-Resolution behavior:
-
-- built-in sources continue using existing resolver behavior;
-- configured artifact sources resolve from catalog availability/provenance;
-- selected configured artifacts become available after generation;
-- disabled configured artifacts may become available from disk;
-- missing optional configured artifact inputs are omitted;
-- missing required configured artifact inputs fail clearly.
-
-Tests:
-
-- configured artifact consumes a built-in transcript source;
-- configured artifact consumes another configured artifact produced earlier in the same analyze run;
-- configured artifact consumes a disabled artifact resolved from disk;
-- required disabled artifact missing on disk fails;
-- required configured artifact missing fails;
-- optional missing configured artifact is omitted;
-- reused artifact provenance is recorded distinctly from generated artifact provenance.
-
-### Phase 5: Analyze Stage Generalization
-
-Refactor `analyze` to execute selected configured artifacts.
-
-Implementation notes:
-
-- remove the hard-coded `session_recap` selection path;
-- remove the hard-coded rejection of non-`session_recap` artifacts;
-- preserve skip behavior when Scriptorium config is absent or no artifacts are selected;
-- build the runtime artifact catalog;
-- apply `--artifacts` filtering;
-- validate selected artifacts and their dependencies;
-- pre-resolve disabled dependencies from disk where required;
-- compute deterministic dependency order;
-- execute selected artifacts one at a time in dependency order;
-- keep render-debug behavior at global and artifact levels;
-- keep Scriptorium adapter invocation generic;
-- after each successful run, register the artifact as available in the catalog;
-- aggregate generated and reused artifact metadata.
-
-Tests:
-
-- no Scriptorium config skips;
-- empty artifact map skips;
-- no selected artifacts skips;
-- disabled artifacts do not run;
-- one selected artifact runs;
-- multiple independent artifacts run in deterministic order;
-- dependent selected artifact receives prior selected artifact as input;
-- dependent selected artifact receives disabled-from-disk artifact as input;
-- render-debug works for configured artifacts;
-- Scriptorium validation failure fails the stage;
-- missing required input fails the stage;
-- successful outputs are non-empty and recorded;
-- artifact filter executes only requested artifacts.
-
-### Phase 6: Manifest and Stage Metadata
-
-Update analyze-stage metadata and manifest output recording to support dynamic configured artifacts.
-
-Recommended behavior:
-
-- every generated configured artifact gets `source_id: narratio.artifact.<name>`;
-- every generated configured artifact gets a generic output kind such as `scriptorium_artifact`;
-- reused disabled artifacts are recorded separately from generated artifacts;
-- metadata is sufficient for debugging, provenance, and future resolver support;
-- metadata does not create per-artifact resume semantics.
-
-Because this is a pre-release hard cutover, do not preserve a special legacy `session_recap` output kind unless a current internal test or archive path still requires it temporarily. Prefer updating tests and examples to treat `session_recap` as an ordinary configured artifact.
-
-Tests:
-
-- metadata records one generated configured artifact;
-- metadata records multiple generated configured artifacts;
-- metadata records reused disabled artifact provenance;
-- `session_recap` is recorded as a normal configured artifact;
-- manifest still treats `analyze` as a single succeeded or failed stage;
-- runner skip behavior remains stage-level.
-
-### Phase 7: Archive and Promotion Review
-
-Review archive behavior after dynamic artifacts are recorded.
-
-Implementation notes:
-
-- do not automatically promote every configured artifact;
-- keep `archive.promote_artifacts` explicit;
-- update default or example promotion rules to use configured `session_recap` output path;
-- ensure required promotion rules fail clearly when selected artifact generation did not produce a required file.
-
-Tests:
-
-- generated artifact can be promoted by explicit archive rule;
-- required archive promotion fails if selected artifact was not generated and no file exists;
-- optional archive promotion skips cleanly if file is absent;
-- hard cutover does not rely on hard-coded `session_recap` generation.
-
-### Phase 8: Documentation and Examples
-
-Status: complete.
-
-Update documentation after the implementation is complete.
-
-Recommended documentation changes:
-
-- update `docs/config.md` with the generalized artifact configuration model;
-- update `docs/internal/artifacts.md` to describe the runtime artifact catalog;
-- update `docs/stages/analyze.md` to describe generic Scriptorium artifact generation;
-- update Scriptorium integration docs only if the adapter contract changes;
-- update full annotated pipeline examples;
-- add at least one example with multiple artifacts and one dependency;
-- document `--artifacts` behavior and its relationship to `--force`;
-- remove documentation stating that only `session_recap` is supported.
-
-Documentation should make clear that:
-
-- configured artifact source IDs use `narratio.artifact.<name>`;
-- `depends_on` uses artifact keys, not full source IDs;
-- artifact-to-artifact source references require explicit `depends_on`;
-- disabled artifacts can be reused from disk when required by selected artifacts;
-- `--artifacts` filters execution but does not imply `--force`;
-- archive promotion remains explicit;
-- per-artifact resume is not part of the initial implementation.
-
-## Migration Strategy
-
-Because Narratio is pre-release, perform a hard cutover.
-
-Required changes:
-
-1. Remove the hard-coded `session_recap` analyze behavior.
-2. Require `session_recap` to be declared under `pipeline.scriptorium.artifacts.session_recap` if the operator wants a session recap.
-3. Treat `narratio.artifact.session_recap` as valid only when `session_recap` is a configured artifact key.
-4. Update config examples to show `session_recap` as a normal configured artifact.
-5. Update tests to stop assuming that `session_recap` is a built-in analyze artifact.
-6. Keep archive promotion explicit and path-based.
-
-Example replacement config:
-
-```yaml
-scriptorium:
-  binary: scriptorium
-  config_path: /etc/scriptorium/config.yml
-  timeout: 10m
-  render_debug: false
-  artifacts:
-    session_recap:
-      enabled: true
-      prompt_id: dnd_session.session_recap
-      profile_id: local-gemma-31b
-      output_path: artifacts/session_recap.md
-      timeout: 20m
-      inputs:
-        transcript:
-          source: narratio.transcript.trimmed
-          required: true
-        prior_recap:
-          source: previous_session_artifact
-          artifact: artifacts/session_recap.md
-          required: false
-      vars:
-        artifact_title: Session Recap
-```
-
-## Acceptance Criteria
-
-The feature is complete when:
-
-- operators can define more than one enabled Scriptorium artifact in `pipeline.yml`;
-- Narratio runs selected artifacts in deterministic dependency order;
-- configured artifacts are addressable as `narratio.artifact.<name>`;
-- one configured artifact can consume another configured artifact as an input;
-- artifact-to-artifact input references require explicit `depends_on`;
-- disabled artifacts can satisfy dependencies from existing on-disk outputs;
-- missing required disabled artifacts fail clearly;
-- optional missing inputs are omitted;
-- `--artifacts` can selectively execute valid configured artifact names;
-- `--artifacts` does not imply `--force`;
-- render-debug behavior works for all configured artifacts;
-- generated and reused artifacts are recorded in analyze-stage metadata;
-- `session_recap` is no longer hard-coded and works as a normal configured artifact;
-- archive promotion remains explicit;
-- tests cover config validation, dependency sorting, disabled artifact resolution, resolver behavior, CLI filtering, analyze execution, archive interactions, and metadata.
-
-## Suggested Implementation Order
-
-1. Config model, defaults, and validation.
-2. CLI parsing and propagation of `--artifacts` selection.
-3. Runtime artifact catalog.
-4. Resolver integration for configured artifacts.
-5. Analyze stage generalization.
-6. Stage metadata and manifest output recording.
-7. Archive behavior review.
-8. Documentation and examples.
-
-This order keeps the most static pieces first, then moves into execution behavior once the configuration contract is explicit and well tested.

docs/troubleshooting.md

@@ -6,7 +6,7 @@ Canonical operator troubleshooting guide for recurring implemented Narratio fail
 ## Config file discovery failure
 
 Symptom:
-- `run`, `plan`, `resume`, or `run-stage` fails with config/session not found.
+- `run`, `plan`, `resume`, `run-stage`, or `restore` fails with config/session not found.
 
 Likely Cause:
 - `pipeline.yml` or `session.yml` is missing from discovery paths.
@@ -192,7 +192,7 @@ Links:
 ## Session lock conflict (`.lock`)
 
 Symptom:
-- run fails with lock conflict for session workdir.
+- `run`, `resume`, `run-stage`, or `restore` fails with lock conflict for session workdir.
 
 Likely Cause:
 - another Narratio process is running same session.
@@ -207,13 +207,104 @@ ps aux | grep narratio
 ```
 
 Safe Fix:
-- wait for active run to finish.
+- wait for active process to finish.
 - if no process is active, remove only stale session `.lock` file.
 
 Links:
 - [docs/operations.md](./operations.md)
 - [docs/internal/workspace.md](./internal/workspace.md)
 
+## Restore remote current pointer or manifest missing
+
+Symptom:
+- `restore` fails with remote current pointer or current manifest errors.
+
+Likely Cause:
+- `current/run_id.txt` was never published.
+- `current/manifest.json` is missing for the session prefix.
+- archive commit did not complete.
+
+Diagnostics:
+
+```bash
+narratio restore --config /path/to/pipeline.yml --session /path/to/session.yml --session-id 2026-04-04 --dry-run
+```
+
+Safe Fix:
+- verify archive stage succeeded for the target session.
+- rerun/archive from a healthy source workspace so current pointers are published.
+
+Links:
+- [docs/operations.md](./operations.md)
+- [docs/internal/stage-archive.md](./internal/stage-archive.md)
+
+## Restore manifest identity mismatch
+
+Symptom:
+- `restore` fails because remote manifest session or campaign does not match requested values.
+
+Likely Cause:
+- wrong `--session-id` or wrong session config selected.
+- archive prefix points to a different campaign/session.
+
+Diagnostics:
+
+```bash
+narratio restore --config /path/to/pipeline.yml --session /path/to/session.yml --session-id 2026-04-04 --dry-run
+```
+
+Safe Fix:
+- use the correct session config and `--session-id`.
+- verify campaign/session identity in local config before restore.
+
+Links:
+- [docs/config.md](./config.md)
+- [docs/operations.md](./operations.md)
+
+## Restore conflict without `--force`
+
+Symptom:
+- `restore` fails with `restore conflict` and conflict counts.
+
+Likely Cause:
+- local durable file differs from remote file for one or more planned restore paths.
+
+Diagnostics:
+
+```bash
+narratio restore --config /path/to/pipeline.yml --session /path/to/session.yml --session-id 2026-04-04 --dry-run
+```
+
+Safe Fix:
+- review planned conflicts.
+- rerun with `--force` only when remote state should overwrite local state.
+
+Links:
+- [docs/cli.md](./cli.md)
+- [docs/operations.md](./operations.md)
+
+## Restore report expectations
+
+Symptom:
+- operator expects restore report file but does not find one.
+
+Likely Cause:
+- restore was executed in `--dry-run` mode.
+- restore failed before report persistence path (for example lock acquisition failure).
+
+Diagnostics:
+
+```bash
+ls -l {workspace.root}/work/{campaign}/{session_id}/reports/restore-latest.json
+```
+
+Safe Fix:
+- run non-dry-run restore for durable report output.
+- resolve lock or early preflight failures and retry.
+
+Links:
+- [docs/operations.md](./operations.md)
+
 ## Secrets env-dir or credential-env failure
 
 Symptom:
@@ -280,7 +371,7 @@ narratio run-stage --config /path/to/pipeline.yml --session /path/to/session.yml
 
 Safe Fix:
 - rerun or resume upstream stages to generate required files.
-- adjust promotion rules to match files that must exist.
+- adjust promotion `source`/`dest` rules to match artifacts that must exist.
 - retry after storage issue is resolved.
 
 Links:

examples/pipeline.full.annotated.yml

@@ -40,16 +40,16 @@ archive:
   # Optional booleans; defaults are true.
   enabled: true
   upload_run: true
-  # Optional promotion rules; required files fail archive if missing.
+  # Optional promotion rules; sources use Narratio artifact source IDs.
   promote_artifacts:
-    - from: transcripts/trimmed.json
+    - source: narratio.transcript.trimmed
-      to: transcripts/trimmed.json
+      dest: transcripts/trimmed.json
       required: true
-    - from: artifacts/session_recap.md
+    - source: narratio.artifact.session_recap
-      to: artifacts/session_recap.md
+      dest: artifacts/session_recap.md
       required: true
-    - from: artifacts/player_handout.md
+    - source: narratio.artifact.player_handout
-      to: artifacts/player_handout.md
+      dest: artifacts/player_handout.md
       required: false
 
 whisperx:

examples/pipeline.production.yml

@@ -19,14 +19,14 @@ archive:
   enabled: true
   upload_run: true
   promote_artifacts:
-    - from: transcripts/trimmed.json
+    - source: narratio.transcript.trimmed
-      to: transcripts/trimmed.json
+      dest: transcripts/trimmed.json
       required: true
-    - from: artifacts/session_recap.md
+    - source: narratio.artifact.session_recap
-      to: artifacts/session_recap.md
+      dest: artifacts/session_recap.md
       required: true
-    - from: artifacts/player_handout.md
+    - source: narratio.artifact.player_handout
-      to: artifacts/player_handout.md
+      dest: artifacts/player_handout.md
       required: false
 
 whisperx:

internal/app/commands.go

@@ -7,7 +7,7 @@ import (
 	"strings"
 )
 
-var supportedCommands = []string{"run", "plan", "status", "resume", "run-stage"}
+var supportedCommands = []string{"run", "plan", "status", "resume", "run-stage", "restore"}
 
 // Execute dispatches CLI commands and returns a process exit code.
 func Execute(args []string, stdout, stderr io.Writer) int {
@@ -32,6 +32,8 @@ func Execute(args []string, stdout, stderr io.Writer) int {
 		err = Resume(ctx, cmdArgs, stdout)
 	case "run-stage":
 		err = RunStage(ctx, cmdArgs, stdout)
+	case "restore":
+		err = Restore(ctx, cmdArgs, stdout)
 	default:
 		fmt.Fprintf(stderr, "unknown command: %q\n\n", cmd)
 		printUsage(stderr)

internal/app/post_archive_cleanup_test.go

@@ -195,7 +195,7 @@ func TestPostArchiveCleanupNotRunWhenPromotionIsMissing(t *testing.T) {
 	cfg.Pipeline.Spool.DeleteAudioAfterArchive = true
 	cfg.Pipeline.Workspace.CleanupAfterArchive = true
 	cfg.Pipeline.Archive.PromoteArtifacts = []config.ArchivePromotionRule{
-		{From: "artifacts/missing.md", To: "artifacts/missing.md", Required: boolPtr(true)},
+		{Source: "narratio.transcript.merged", Dest: "transcripts/merged.json", Required: boolPtr(true)},
 	}
 
 	archiveStageImpl, err := stage.Select("archive")
@@ -203,7 +203,7 @@ func TestPostArchiveCleanupNotRunWhenPromotionIsMissing(t *testing.T) {
 		t.Fatalf("Select(archive) error = %v", err)
 	}
 	_, err = executeStages(context.Background(), cfg, []stage.Stage{archiveStageImpl}, RunOptions{Env: &Env{ObjectStore: &storage.FakeBackend{}}})
-	if err == nil || !strings.Contains(err.Error(), "required promotion source missing") {
+	if err == nil || !strings.Contains(err.Error(), "required promotion source unavailable") {
 		t.Fatalf("executeStages() error = %v, want promotion-missing failure", err)
 	}
 
@@ -322,8 +322,15 @@ func archiveStageCleanupFixture(t *testing.T) (*config.Config, cleanupSeed, stri
 		Enabled:   boolPtr(true),
 		UploadRun: boolPtr(true),
 		PromoteArtifacts: []config.ArchivePromotionRule{
-			{From: "transcripts/trimmed.json", To: "transcripts/trimmed.json", Required: boolPtr(true)},
+			{Source: "narratio.transcript.trimmed", Dest: "transcripts/trimmed.json", Required: boolPtr(true)},
-			{From: "artifacts/session_recap.md", To: "artifacts/session_recap.md", Required: boolPtr(true)},
+			{Source: "narratio.artifact.session_recap", Dest: "artifacts/session_recap.md", Required: boolPtr(true)},
+		},
+	}
+	cfg.Pipeline.Scriptorium = &config.ScriptoriumConfig{
+		Artifacts: map[string]config.ScriptoriumArtifactConfig{
+			"session_recap": {
+				OutputPath: "artifacts/session_recap.md",
+			},
 		},
 	}
 	writeArchiveFixtureRunFiles(
@@ -353,14 +360,14 @@ func writeArchiveFixtureRunFiles(t *testing.T, runWorkDir, sessionRoot string) {
 	t.Helper()
 	mustWriteFile(t, filepath.Join(runWorkDir, "prepare", "inputs", "session.yml"), "session_id: 2026-05-03\n")
 	mustWriteFile(t, filepath.Join(runWorkDir, "transcribe", "outputs", "transcripts", "raw", "speaker.json"), "{}\n")
-	mustWriteFile(t, filepath.Join(runWorkDir, "trim", "outputs", "transcripts", "trimmed.json"), "{}\n")
+	mustWriteFile(t, filepath.Join(runWorkDir, "trim", "outputs", "transcripts", "trimmed.json"), "{\"segments\":[]}\n")
 	mustWriteFile(t, filepath.Join(runWorkDir, "analyze", "outputs", "artifacts", "session_recap.md"), "# recap\n")
 	mustWriteFile(t, filepath.Join(runWorkDir, "polish", "reports", "audita.report.json"), "{}\n")
 	mustWriteFile(t, filepath.Join(runWorkDir, "merge", "config", "seriatim.generated.yml"), "key: value\n")
 	mustWriteFile(t, filepath.Join(runWorkDir, "logs", "audita.stderr.log"), "stderr\n")
 	mustWriteFile(t, filepath.Join(runWorkDir, "manifest.json"), "{}\n")
 
-	mustWriteFile(t, filepath.Join(sessionRoot, "transcripts", "trimmed.json"), "{}\n")
+	mustWriteFile(t, filepath.Join(sessionRoot, "transcripts", "trimmed.json"), "{\"segments\":[]}\n")
 	mustWriteFile(t, filepath.Join(sessionRoot, "artifacts", "session_recap.md"), "# recap\n")
 }
 

internal/app/restore.go

@@ -0,0 +1,152 @@
+package app
+
+import (
+	"context"
+	"errors"
+	"flag"
+	"fmt"
+	"io"
+	"log/slog"
+	"os"
+
+	"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/logging"
+)
+
+var newObjectStoreFromConfigFn = storage.NewObjectStoreFromConfig
+var discoverRemoteCurrentStateFn = discoverRemoteCurrentState
+var buildRestorePlanFn = buildRestorePlan
+var executeRestorePlanFn = executeRestorePlan
+
+// Restore validates restore CLI/config inputs and storage preflight for future restore phases.
+func Restore(ctx context.Context, args []string, out io.Writer) error {
+	fs := flag.NewFlagSet("restore", flag.ContinueOnError)
+	fs.SetOutput(out)
+
+	var pipelinePath string
+	var sessionPath string
+	var sessionID string
+	var dryRun bool
+	var force bool
+	var includeAudio bool
+	fs.StringVar(&pipelinePath, "config", "", "path to pipeline.yml (optional; defaults searched)")
+	fs.StringVar(&sessionPath, "session", "", "path to session.yml")
+	fs.StringVar(&sessionID, "session-id", "", "session identifier for session.yml templates")
+	fs.BoolVar(&dryRun, "dry-run", false, "plan restore actions without writing local files")
+	fs.BoolVar(&force, "force", false, "overwrite local conflicts with remote state")
+	fs.BoolVar(&includeAudio, "include-audio", false, "include archived session-level audio objects")
+	fs.Usage = func() {
+		_, _ = fmt.Fprintln(out, "Usage: narratio restore [--config <path>] [--session <path>] [--session-id <value>] [--dry-run] [--force] [--include-audio]")
+		_, _ = fmt.Fprintln(out)
+		_, _ = fmt.Fprintln(out, "Flags:")
+		fs.PrintDefaults()
+	}
+
+	if err := fs.Parse(args); err != nil {
+		if errors.Is(err, flag.ErrHelp) {
+			return nil
+		}
+		return fmt.Errorf("restore: invalid flags: %w", err)
+	}
+	if fs.NArg() != 0 {
+		return fmt.Errorf("restore: unexpected positional arguments")
+	}
+	resolvedPipelinePath, err := resolvePipelineConfigPath(pipelinePath)
+	if err != nil {
+		return fmt.Errorf("restore: %w", err)
+	}
+	resolvedSessionPath, err := resolveSessionConfigPath(sessionPath)
+	if err != nil {
+		return fmt.Errorf("restore: %w", err)
+	}
+
+	cfg, err := config.LoadWithSessionOptions(resolvedPipelinePath, resolvedSessionPath, config.SessionLoadOptions{
+		SessionID: sessionID,
+	})
+	if err != nil {
+		return fmt.Errorf("restore: %w", err)
+	}
+	if err := config.Validate(cfg); err != nil {
+		return fmt.Errorf("restore: %w", err)
+	}
+	if _, err := loadSecretsFromConfig(cfg, logging.NewLogger(os.Stderr, slog.LevelInfo)); err != nil {
+		return fmt.Errorf("restore: %w", err)
+	}
+
+	objectStore, err := newObjectStoreFromConfigFn(ctx, cfg)
+	if err != nil {
+		return fmt.Errorf("restore: %w", err)
+	}
+	current, err := discoverRemoteCurrentStateFn(ctx, cfg, objectStore)
+	if err != nil {
+		return fmt.Errorf("restore: %w", err)
+	}
+	plan, err := buildRestorePlanFn(ctx, cfg, current, objectStore, RestorePlanOptions{
+		IncludeAudio: includeAudio,
+		Force:        force,
+		DryRun:       dryRun,
+	})
+	if err != nil {
+		return fmt.Errorf("restore: %w", err)
+	}
+	report, err := newRestoreReport(current, plan, RestorePlanOptions{
+		IncludeAudio: includeAudio,
+		Force:        force,
+		DryRun:       dryRun,
+	})
+	if err != nil {
+		return fmt.Errorf("restore: %w", err)
+	}
+	if dryRun {
+		if err := writeRestoreDryRunSummary(out, report); err != nil {
+			return fmt.Errorf("restore: write plan output: %w", err)
+		}
+		return nil
+	}
+
+	artifactStore := artifacts.NewLocalStore(cfg.Pipeline.Workspace.Root)
+	if _, err := artifactStore.EnsureLayoutFor(cfg.Session.Campaign, cfg.Session.SessionID); err != nil {
+		return fmt.Errorf("restore: prepare workdir: %w", err)
+	}
+	lock, err := artifactStore.AcquireSessionLockFor(cfg.Session.Campaign, cfg.Session.SessionID)
+	if err != nil {
+		return fmt.Errorf("restore: acquire session lock: %w", err)
+	}
+	defer func() {
+		_ = artifactStore.ReleaseSessionLock(lock)
+	}()
+
+	if plan.ConflictCount > 0 && !force {
+		report.setFailed(fmt.Errorf("conflict: %d conflicting path(s)", plan.ConflictCount))
+		if _, reportErr := persistRestoreReport(artifactStore, cfg, report); reportErr != nil {
+			return fmt.Errorf("restore: report failure: %w", reportErr)
+		}
+		return fmt.Errorf(
+			"restore conflict: %d conflicting path(s); rerun with --force to overwrite (download=%d skip_same=%d conflicts=%d)",
+			plan.ConflictCount,
+			plan.DownloadCount,
+			plan.SkipSameCount,
+			plan.ConflictCount,
+		)
+	}
+
+	result, err := executeRestorePlanFn(ctx, cfg, current, plan, report, objectStore)
+	if err != nil {
+		report.setFailed(err)
+		if _, reportErr := persistRestoreReport(artifactStore, cfg, report); reportErr != nil {
+			return fmt.Errorf("restore: execute plan failed (%v) and report write failed (%v)", err, reportErr)
+		}
+		return fmt.Errorf("restore: execute plan: %w", err)
+	}
+	report.Execution.Downloaded = result.DownloadedCount
+	report.setSucceeded()
+	if _, err := persistRestoreReport(artifactStore, cfg, report); err != nil {
+		return fmt.Errorf("restore: write report: %w", err)
+	}
+	if err := writeRestoreSuccessSummary(out, report); err != nil {
+		return fmt.Errorf("restore: write summary: %w", err)
+	}
+	return nil
+}

internal/app/restore_discovery.go

@@ -0,0 +1,139 @@
+package app
+
+import (
+	"context"
+	"fmt"
+	"os"
+	"strings"
+
+	"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"
+)
+
+// RemoteCurrentState captures discovered committed remote archive state for one session.
+type RemoteCurrentState struct {
+	Bucket             string
+	SessionPrefix      string
+	CurrentRunIDKey    string
+	CurrentManifestKey string
+	RunID              string
+	SessionID          string
+	Campaign           string
+	Manifest           *manifest.Manifest
+}
+
+func discoverRemoteCurrentState(ctx context.Context, cfg *config.Config, store storage.ObjectStore) (*RemoteCurrentState, error) {
+	if cfg == nil || cfg.Pipeline == nil || cfg.Session == nil {
+		return nil, fmt.Errorf("resolved config with pipeline/session is required")
+	}
+	if store == nil {
+		return nil, fmt.Errorf("remote object store is required")
+	}
+
+	bucket := artifacts.ResolveArchiveBucket(cfg, nil)
+	if strings.TrimSpace(bucket) == "" {
+		return nil, fmt.Errorf("archive bucket is required")
+	}
+	sessionPrefix, err := artifacts.ResolveArchiveSessionPrefix(cfg, nil)
+	if err != nil {
+		return nil, fmt.Errorf("resolve archive session prefix: %w", err)
+	}
+	currentManifestKey, currentRunIDKey := artifacts.ResolveArchiveCurrentStateKeys(sessionPrefix)
+
+	exists, err := store.Exists(ctx, currentRunIDKey)
+	if err != nil {
+		return nil, fmt.Errorf("check remote current run pointer %q: %w", currentRunIDKey, err)
+	}
+	if !exists {
+		return nil, fmt.Errorf("remote current run pointer missing: %q", currentRunIDKey)
+	}
+
+	runIDPath, err := downloadObjectToTemp(ctx, store, currentRunIDKey, "narratio-restore-current-run-id-*.txt")
+	if err != nil {
+		return nil, fmt.Errorf("download remote current run pointer %q: %w", currentRunIDKey, err)
+	}
+	defer func() { _ = os.Remove(runIDPath) }()
+
+	runIDData, err := os.ReadFile(runIDPath)
+	if err != nil {
+		return nil, fmt.Errorf("read downloaded run pointer %q: %w", currentRunIDKey, err)
+	}
+	runID := strings.TrimSpace(string(runIDData))
+	if runID == "" {
+		return nil, fmt.Errorf("remote current run pointer %q is empty", currentRunIDKey)
+	}
+
+	exists, err = store.Exists(ctx, currentManifestKey)
+	if err != nil {
+		return nil, fmt.Errorf("check remote current manifest %q: %w", currentManifestKey, err)
+	}
+	if !exists {
+		return nil, fmt.Errorf("remote current manifest missing: %q", currentManifestKey)
+	}
+
+	manifestPath, err := downloadObjectToTemp(ctx, store, currentManifestKey, "narratio-restore-current-manifest-*.json")
+	if err != nil {
+		return nil, fmt.Errorf("download remote current manifest %q: %w", currentManifestKey, err)
+	}
+	defer func() { _ = os.Remove(manifestPath) }()
+
+	manifestStore := &manifest.LocalStore{}
+	remoteManifest, err := manifestStore.Load(ctx, manifestPath)
+	if err != nil {
+		return nil, fmt.Errorf("remote current manifest decode failed: %w", err)
+	}
+
+	requestedSession := strings.TrimSpace(cfg.Session.SessionID)
+	requestedCampaign := strings.TrimSpace(cfg.Session.Campaign)
+	manifestSession := strings.TrimSpace(remoteManifest.SessionID)
+	manifestCampaign := strings.TrimSpace(remoteManifest.Campaign)
+
+	if manifestSession != requestedSession {
+		return nil, fmt.Errorf(
+			"remote current manifest session_id %q does not match requested session_id %q",
+			manifestSession,
+			requestedSession,
+		)
+	}
+	if manifestCampaign == "" {
+		return nil, fmt.Errorf("remote current manifest campaign is required")
+	}
+	if manifestCampaign != requestedCampaign {
+		return nil, fmt.Errorf(
+			"remote current manifest campaign %q does not match requested campaign %q",
+			manifestCampaign,
+			requestedCampaign,
+		)
+	}
+
+	return &RemoteCurrentState{
+		Bucket:             bucket,
+		SessionPrefix:      sessionPrefix,
+		CurrentRunIDKey:    currentRunIDKey,
+		CurrentManifestKey: currentManifestKey,
+		RunID:              runID,
+		SessionID:          manifestSession,
+		Campaign:           manifestCampaign,
+		Manifest:           remoteManifest,
+	}, nil
+}
+
+func downloadObjectToTemp(ctx context.Context, store storage.ObjectStore, key, pattern string) (string, error) {
+	tmp, err := os.CreateTemp("", pattern)
+	if err != nil {
+		return "", fmt.Errorf("create temp file: %w", err)
+	}
+	path := tmp.Name()
+	if err := tmp.Close(); err != nil {
+		_ = os.Remove(path)
+		return "", fmt.Errorf("close temp file: %w", err)
+	}
+
+	if err := store.Download(ctx, key, path); err != nil {
+		_ = os.Remove(path)
+		return "", err
+	}
+	return path, nil
+}

internal/app/restore_discovery_test.go

@@ -0,0 +1,239 @@
+package app
+
+import (
+	"context"
+	"encoding/json"
+	"fmt"
+	"strings"
+	"testing"
+	"time"
+
+	"gitea.maximumdirect.net/eric/narratio/internal/adapters/storage"
+	"gitea.maximumdirect.net/eric/narratio/internal/artifacts"
+	"gitea.maximumdirect.net/eric/narratio/internal/config"
+)
+
+func TestDiscoverRemoteCurrentStateSuccess(t *testing.T) {
+	cfg := restoreDiscoveryConfig()
+	store := &storage.FakeBackend{}
+	sessionPrefix, manifestKey, runIDKey := restoreDiscoveryKeys(cfg)
+
+	store.SeedObject(storage.FakeObject{Key: runIDKey, Data: []byte("20260519T010203Z-a1b2c3d4\n")})
+	store.SeedObject(storage.FakeObject{Key: manifestKey, Data: restoreManifestJSON(t, cfg.Session.SessionID, cfg.Session.Campaign)})
+
+	state, err := discoverRemoteCurrentState(context.Background(), cfg, store)
+	if err != nil {
+		t.Fatalf("discoverRemoteCurrentState() error = %v", err)
+	}
+	if state.RunID != "20260519T010203Z-a1b2c3d4" {
+		t.Fatalf("run id = %q, want 20260519T010203Z-a1b2c3d4", state.RunID)
+	}
+	if state.SessionPrefix != sessionPrefix {
+		t.Fatalf("session prefix = %q, want %q", state.SessionPrefix, sessionPrefix)
+	}
+	if state.CurrentRunIDKey != runIDKey {
+		t.Fatalf("current run id key = %q, want %q", state.CurrentRunIDKey, runIDKey)
+	}
+	if state.CurrentManifestKey != manifestKey {
+		t.Fatalf("current manifest key = %q, want %q", state.CurrentManifestKey, manifestKey)
+	}
+	if state.Manifest == nil {
+		t.Fatal("manifest is nil")
+	}
+}
+
+func TestDiscoverRemoteCurrentStateMissingRunPointerFails(t *testing.T) {
+	cfg := restoreDiscoveryConfig()
+	store := &storage.FakeBackend{}
+
+	_, err := discoverRemoteCurrentState(context.Background(), cfg, store)
+	if err == nil || !strings.Contains(err.Error(), "remote current run pointer missing") {
+		t.Fatalf("error = %v, want missing run pointer failure", err)
+	}
+}
+
+func TestDiscoverRemoteCurrentStateEmptyRunPointerFails(t *testing.T) {
+	cfg := restoreDiscoveryConfig()
+	store := &storage.FakeBackend{}
+	_, manifestKey, runIDKey := restoreDiscoveryKeys(cfg)
+
+	store.SeedObject(storage.FakeObject{Key: runIDKey, Data: []byte(" \n\t")})
+	store.SeedObject(storage.FakeObject{Key: manifestKey, Data: restoreManifestJSON(t, cfg.Session.SessionID, cfg.Session.Campaign)})
+
+	_, err := discoverRemoteCurrentState(context.Background(), cfg, store)
+	if err == nil || !strings.Contains(err.Error(), "is empty") {
+		t.Fatalf("error = %v, want empty run pointer failure", err)
+	}
+}
+
+func TestDiscoverRemoteCurrentStateMissingManifestFails(t *testing.T) {
+	cfg := restoreDiscoveryConfig()
+	store := &storage.FakeBackend{}
+	_, _, runIDKey := restoreDiscoveryKeys(cfg)
+
+	store.SeedObject(storage.FakeObject{Key: runIDKey, Data: []byte("20260519T010203Z-a1b2c3d4\n")})
+
+	_, err := discoverRemoteCurrentState(context.Background(), cfg, store)
+	if err == nil || !strings.Contains(err.Error(), "remote current manifest missing") {
+		t.Fatalf("error = %v, want missing manifest failure", err)
+	}
+}
+
+func TestDiscoverRemoteCurrentStateInvalidManifestFails(t *testing.T) {
+	cfg := restoreDiscoveryConfig()
+	store := &storage.FakeBackend{}
+	_, manifestKey, runIDKey := restoreDiscoveryKeys(cfg)
+
+	store.SeedObject(storage.FakeObject{Key: runIDKey, Data: []byte("20260519T010203Z-a1b2c3d4\n")})
+	store.SeedObject(storage.FakeObject{Key: manifestKey, Data: []byte("{invalid json")})
+
+	_, err := discoverRemoteCurrentState(context.Background(), cfg, store)
+	if err == nil || !strings.Contains(err.Error(), "remote current manifest decode failed") {
+		t.Fatalf("error = %v, want manifest decode failure", err)
+	}
+}
+
+func TestDiscoverRemoteCurrentStateSessionMismatchFails(t *testing.T) {
+	cfg := restoreDiscoveryConfig()
+	store := &storage.FakeBackend{}
+	_, manifestKey, runIDKey := restoreDiscoveryKeys(cfg)
+
+	store.SeedObject(storage.FakeObject{Key: runIDKey, Data: []byte("20260519T010203Z-a1b2c3d4\n")})
+	store.SeedObject(storage.FakeObject{Key: manifestKey, Data: restoreManifestJSON(t, "wrong-session", cfg.Session.Campaign)})
+
+	_, err := discoverRemoteCurrentState(context.Background(), cfg, store)
+	if err == nil || !strings.Contains(err.Error(), "does not match requested session_id") {
+		t.Fatalf("error = %v, want session mismatch failure", err)
+	}
+}
+
+func TestDiscoverRemoteCurrentStateCampaignMismatchFails(t *testing.T) {
+	cfg := restoreDiscoveryConfig()
+	store := &storage.FakeBackend{}
+	_, manifestKey, runIDKey := restoreDiscoveryKeys(cfg)
+
+	store.SeedObject(storage.FakeObject{Key: runIDKey, Data: []byte("20260519T010203Z-a1b2c3d4\n")})
+	store.SeedObject(storage.FakeObject{Key: manifestKey, Data: restoreManifestJSON(t, cfg.Session.SessionID, "wrong-campaign")})
+
+	_, err := discoverRemoteCurrentState(context.Background(), cfg, store)
+	if err == nil || !strings.Contains(err.Error(), "does not match requested campaign") {
+		t.Fatalf("error = %v, want campaign mismatch failure", err)
+	}
+}
+
+func TestDiscoverRemoteCurrentStateEmptyCampaignFails(t *testing.T) {
+	cfg := restoreDiscoveryConfig()
+	store := &storage.FakeBackend{}
+	_, manifestKey, runIDKey := restoreDiscoveryKeys(cfg)
+
+	store.SeedObject(storage.FakeObject{Key: runIDKey, Data: []byte("20260519T010203Z-a1b2c3d4\n")})
+	store.SeedObject(storage.FakeObject{Key: manifestKey, Data: restoreManifestJSON(t, cfg.Session.SessionID, "")})
+
+	_, err := discoverRemoteCurrentState(context.Background(), cfg, store)
+	if err == nil || !strings.Contains(err.Error(), "campaign is required") {
+		t.Fatalf("error = %v, want empty campaign failure", err)
+	}
+}
+
+func TestDiscoverRemoteCurrentStateUsesCurrentKeysUnderSessionPrefix(t *testing.T) {
+	cfg := restoreDiscoveryConfig()
+	sessionPrefix, manifestKey, runIDKey := restoreDiscoveryKeys(cfg)
+	base := &storage.FakeBackend{}
+	store := &captureObjectStore{delegate: base}
+
+	base.SeedObject(storage.FakeObject{Key: runIDKey, Data: []byte("20260519T010203Z-a1b2c3d4\n")})
+	base.SeedObject(storage.FakeObject{Key: manifestKey, Data: restoreManifestJSON(t, cfg.Session.SessionID, cfg.Session.Campaign)})
+
+	_, err := discoverRemoteCurrentState(context.Background(), cfg, store)
+	if err != nil {
+		t.Fatalf("discoverRemoteCurrentState() error = %v", err)
+	}
+
+	expectedRunKey := fmt.Sprintf("%scurrent/run_id.txt", sessionPrefix)
+	expectedManifestKey := fmt.Sprintf("%scurrent/manifest.json", sessionPrefix)
+	if !containsString(store.existsKeys, expectedRunKey) {
+		t.Fatalf("exists keys = %#v, want run pointer key %q", store.existsKeys, expectedRunKey)
+	}
+	if !containsString(store.existsKeys, expectedManifestKey) {
+		t.Fatalf("exists keys = %#v, want manifest key %q", store.existsKeys, expectedManifestKey)
+	}
+	if !containsString(store.downloadKeys, expectedRunKey) {
+		t.Fatalf("download keys = %#v, want run pointer key %q", store.downloadKeys, expectedRunKey)
+	}
+	if !containsString(store.downloadKeys, expectedManifestKey) {
+		t.Fatalf("download keys = %#v, want manifest key %q", store.downloadKeys, expectedManifestKey)
+	}
+}
+
+type captureObjectStore struct {
+	delegate     storage.ObjectStore
+	existsKeys   []string
+	downloadKeys []string
+}
+
+func (s *captureObjectStore) List(ctx context.Context, prefix string) ([]storage.ObjectInfo, error) {
+	return s.delegate.List(ctx, prefix)
+}
+
+func (s *captureObjectStore) Download(ctx context.Context, key, localPath string) error {
+	s.downloadKeys = append(s.downloadKeys, key)
+	return s.delegate.Download(ctx, key, localPath)
+}
+
+func (s *captureObjectStore) Upload(ctx context.Context, localPath, key string, opts storage.UploadOptions) (storage.ObjectInfo, error) {
+	return s.delegate.Upload(ctx, localPath, key, opts)
+}
+
+func (s *captureObjectStore) Exists(ctx context.Context, key string) (bool, error) {
+	s.existsKeys = append(s.existsKeys, key)
+	return s.delegate.Exists(ctx, key)
+}
+
+func restoreDiscoveryConfig() *config.Config {
+	return &config.Config{
+		Pipeline: &config.PipelineConfig{
+			Storage: config.StorageConfig{
+				S3: &config.StorageS3Config{
+					Bucket:     "my-dnd-archive",
+					RootPrefix: "dnd",
+				},
+			},
+		},
+		Session: &config.SessionConfig{
+			SessionID: "2026-05-03",
+			Campaign:  "sample-campaign",
+		},
+	}
+}
+
+func restoreDiscoveryKeys(cfg *config.Config) (sessionPrefix, manifestKey, runIDKey string) {
+	sessionPrefix = artifacts.S3SessionPrefix(cfg.Pipeline.Storage.S3.RootPrefix, cfg.Session.Campaign, cfg.Session.SessionID)
+	manifestKey, runIDKey = artifacts.ResolveArchiveCurrentStateKeys(sessionPrefix)
+	return sessionPrefix, manifestKey, runIDKey
+}
+
+func restoreManifestJSON(t *testing.T, sessionID, campaign string) []byte {
+	t.Helper()
+	now := time.Date(2026, 5, 19, 23, 0, 0, 0, time.UTC).Format(time.RFC3339Nano)
+	payload := map[string]any{
+		"session_id": sessionID,
+		"campaign":   campaign,
+		"created_at": now,
+		"updated_at": now,
+		"stages":     map[string]any{},
+	}
+	data, err := json.Marshal(payload)
+	if err != nil {
+		t.Fatalf("marshal manifest payload: %v", err)
+	}
+	return append(data, '\n')
+}
+
+func containsString(values []string, target string) bool {
+	for _, value := range values {
+		if value == target {
+			return true
+		}
+	}
+	return false
+}

internal/app/restore_execute.go

@@ -0,0 +1,180 @@
+package app
+
+import (
+	"context"
+	"fmt"
+	"os"
+	"path/filepath"
+	"strings"
+
+	"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"
+)
+
+// RestoreExecutionResult captures concrete file-install results for one restore execution.
+type RestoreExecutionResult struct {
+	DownloadedCount int
+}
+
+func executeRestorePlan(
+	ctx context.Context,
+	cfg *config.Config,
+	current *RemoteCurrentState,
+	plan *RestorePlan,
+	report *RestoreReport,
+	store storage.ObjectStore,
+) (*RestoreExecutionResult, error) {
+	if cfg == nil || cfg.Pipeline == nil || cfg.Session == nil {
+		return nil, fmt.Errorf("resolved config with pipeline/session is required")
+	}
+	if current == nil {
+		return nil, fmt.Errorf("remote current state is required")
+	}
+	if plan == nil {
+		return nil, fmt.Errorf("restore plan is required")
+	}
+	if store == nil {
+		return nil, fmt.Errorf("remote object store is required")
+	}
+
+	sessionRoot := artifacts.SessionWorkDirForCampaign(cfg.Pipeline.Workspace.Root, cfg.Session.Campaign, cfg.Session.SessionID)
+	manifestActions := make([]RestoreAction, 0, 1)
+	actions := make([]RestoreAction, 0, len(plan.Actions))
+	for _, action := range plan.Actions {
+		if action.Kind != RestoreActionDownload {
+			continue
+		}
+		if action.LocalRelativePath == config.PathManifestFile {
+			manifestActions = append(manifestActions, action)
+			continue
+		}
+		actions = append(actions, action)
+	}
+	if len(manifestActions) > 1 {
+		return nil, fmt.Errorf("restore plan includes multiple manifest download actions")
+	}
+	if len(manifestActions) == 1 {
+		actions = append(actions, manifestActions[0])
+	}
+
+	result := &RestoreExecutionResult{}
+	for _, action := range actions {
+		if err := executeRestoreDownloadAction(ctx, cfg, sessionRoot, current, action, store); err != nil {
+			if report != nil {
+				report.markFailed(action, err)
+			}
+			return nil, fmt.Errorf("install %q from %q: %w", action.LocalRelativePath, action.RemoteKey, err)
+		}
+		if report != nil {
+			report.markDownloaded(action)
+		}
+		result.DownloadedCount++
+	}
+
+	return result, nil
+}
+
+func executeRestoreDownloadAction(
+	ctx context.Context,
+	cfg *config.Config,
+	sessionRoot string,
+	current *RemoteCurrentState,
+	action RestoreAction,
+	store storage.ObjectStore,
+) error {
+	safeLocalPath, err := joinWithinSessionRoot(sessionRoot, action.LocalRelativePath)
+	if err != nil {
+		return fmt.Errorf("resolve safe local path: %w", err)
+	}
+	if strings.TrimSpace(action.LocalPath) != "" && filepath.Clean(action.LocalPath) != safeLocalPath {
+		return fmt.Errorf("restore plan local path mismatch for %q", action.LocalRelativePath)
+	}
+
+	tmpPath, err := downloadObjectToSiblingTemp(ctx, store, action.RemoteKey, safeLocalPath)
+	if err != nil {
+		return fmt.Errorf("download to temp file: %w", err)
+	}
+	removeTmp := true
+	defer func() {
+		if removeTmp {
+			_ = os.Remove(tmpPath)
+		}
+	}()
+
+	if action.LocalRelativePath == config.PathManifestFile {
+		if err := validateRestoredManifest(ctx, cfg, current, tmpPath); err != nil {
+			return err
+		}
+	}
+
+	if err := os.Chmod(tmpPath, 0o644); err != nil {
+		return fmt.Errorf("set file permissions: %w", err)
+	}
+	if err := os.Rename(tmpPath, safeLocalPath); err != nil {
+		return fmt.Errorf("install file atomically: %w", err)
+	}
+	removeTmp = false
+
+	return nil
+}
+
+func downloadObjectToSiblingTemp(ctx context.Context, store storage.ObjectStore, remoteKey, destPath string) (string, error) {
+	if strings.TrimSpace(destPath) == "" {
+		return "", fmt.Errorf("destination path is required")
+	}
+	dir := filepath.Dir(destPath)
+	if err := os.MkdirAll(dir, 0o755); err != nil {
+		return "", fmt.Errorf("create destination directory: %w", err)
+	}
+	base := filepath.Base(destPath)
+	tmp, err := os.CreateTemp(dir, "."+base+".restore-*.tmp")
+	if err != nil {
+		return "", fmt.Errorf("create temp file: %w", err)
+	}
+	tmpPath := tmp.Name()
+	if err := tmp.Close(); err != nil {
+		_ = os.Remove(tmpPath)
+		return "", fmt.Errorf("close temp file: %w", err)
+	}
+
+	if err := store.Download(ctx, remoteKey, tmpPath); err != nil {
+		_ = os.Remove(tmpPath)
+		return "", err
+	}
+
+	return tmpPath, nil
+}
+
+func validateRestoredManifest(ctx context.Context, cfg *config.Config, current *RemoteCurrentState, path string) error {
+	manifestStore := &manifest.LocalStore{}
+	m, err := manifestStore.Load(ctx, path)
+	if err != nil {
+		return fmt.Errorf("validate manifest decode: %w", err)
+	}
+
+	requestedSession := strings.TrimSpace(cfg.Session.SessionID)
+	requestedCampaign := strings.TrimSpace(cfg.Session.Campaign)
+	manifestSession := strings.TrimSpace(m.SessionID)
+	manifestCampaign := strings.TrimSpace(m.Campaign)
+	if manifestSession != requestedSession {
+		return fmt.Errorf("manifest session_id %q does not match requested session_id %q", manifestSession, requestedSession)
+	}
+	if manifestCampaign == "" {
+		return fmt.Errorf("manifest campaign is required")
+	}
+	if manifestCampaign != requestedCampaign {
+		return fmt.Errorf("manifest campaign %q does not match requested campaign %q", manifestCampaign, requestedCampaign)
+	}
+	if current != nil {
+		if expected := strings.TrimSpace(current.SessionID); expected != "" && manifestSession != expected {
+			return fmt.Errorf("manifest session_id %q does not match discovered session_id %q", manifestSession, expected)
+		}
+		if expected := strings.TrimSpace(current.Campaign); expected != "" && manifestCampaign != expected {
+			return fmt.Errorf("manifest campaign %q does not match discovered campaign %q", manifestCampaign, expected)
+		}
+	}
+
+	return nil
+}

internal/app/restore_execution_test.go

@@ -0,0 +1,364 @@
+package app
+
+import (
+	"bytes"
+	"context"
+	"encoding/json"
+	"fmt"
+	"os"
+	"path/filepath"
+	"strings"
+	"testing"
+
+	"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"
+)
+
+func TestExecuteRestoreNonDryRunRestoresDurableFiles(t *testing.T) {
+	workspaceRoot := t.TempDir()
+	pipelinePath, sessionPath := writeValidConfigFiles(t, workspaceRoot)
+
+	fake := &storage.FakeBackend{}
+	cfg, sessionPrefix, manifestKey, runIDKey := seedRestoreCommittedState(t, fake, pipelinePath, sessionPath)
+	seedRestoreObject(fake, sessionPrefix+"transcripts/full.json", []byte(`{"segments":[1,2,3]}`))
+	seedRestoreObject(fake, sessionPrefix+"artifacts/session_recap.md", []byte("# recap\n"))
+	seedRestoreObject(fake, sessionPrefix+"audio/alice.flac", []byte("remote-audio"))
+	seedRestoreObject(fake, runIDKey, []byte("20260519T010203Z-a1b2c3d4\n"))
+	seedRestoreObject(fake, manifestKey, restoreManifestJSON(t, cfg.Session.SessionID, cfg.Session.Campaign))
+
+	restoreWithStoreAndRealPhases(t, fake)
+
+	var stdout bytes.Buffer
+	var stderr bytes.Buffer
+	code := Execute([]string{"restore", "--config", pipelinePath, "--session", sessionPath}, &stdout, &stderr)
+	if code != 0 {
+		t.Fatalf("exit code = %d, want 0; stderr=%q", code, stderr.String())
+	}
+	if stderr.Len() != 0 {
+		t.Fatalf("stderr = %q, want empty", stderr.String())
+	}
+	if !strings.Contains(stdout.String(), "Restored session archive for sample-campaign/2026-05-03") {
+		t.Fatalf("stdout = %q, want completion summary", stdout.String())
+	}
+
+	sessionRoot := artifacts.SessionWorkDirForCampaign(workspaceRoot, cfg.Session.Campaign, cfg.Session.SessionID)
+	mustReadEquals(t, filepath.Join(sessionRoot, "transcripts", "full.json"), `{"segments":[1,2,3]}`)
+	mustReadEquals(t, filepath.Join(sessionRoot, "artifacts", "session_recap.md"), "# recap\n")
+	reportPath := filepath.Join(sessionRoot, "reports", "restore-latest.json")
+	report := mustReadRestoreReport(t, reportPath)
+	if report.Status != "succeeded" {
+		t.Fatalf("report status = %q, want succeeded", report.Status)
+	}
+	if report.Execution.Downloaded != 3 {
+		t.Fatalf("report execution.downloaded = %d, want 3", report.Execution.Downloaded)
+	}
+	if len(report.Actions) == 0 {
+		t.Fatal("report actions is empty")
+	}
+	if _, err := os.Stat(filepath.Join(sessionRoot, "audio", "alice.flac")); !os.IsNotExist(err) {
+		t.Fatalf("audio should not be restored by default; stat err=%v", err)
+	}
+}
+
+func TestExecuteRestoreIncludeAudioRestoresAudio(t *testing.T) {
+	workspaceRoot := t.TempDir()
+	pipelinePath, sessionPath := writeValidConfigFiles(t, workspaceRoot)
+
+	fake := &storage.FakeBackend{}
+	cfg, sessionPrefix, _, _ := seedRestoreCommittedState(t, fake, pipelinePath, sessionPath)
+	seedRestoreObject(fake, sessionPrefix+"audio/alice.flac", []byte("remote-audio"))
+
+	restoreWithStoreAndRealPhases(t, fake)
+
+	var stdout bytes.Buffer
+	var stderr bytes.Buffer
+	code := Execute([]string{"restore", "--config", pipelinePath, "--session", sessionPath, "--include-audio"}, &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, "audio", "alice.flac"), "remote-audio")
+	report := mustReadRestoreReport(t, filepath.Join(sessionRoot, "reports", "restore-latest.json"))
+	if !report.IncludeAudio {
+		t.Fatalf("report include_audio = %v, want true", report.IncludeAudio)
+	}
+}
+
+func TestExecuteRestoreConflictWithoutForceDoesNotOverwrite(t *testing.T) {
+	workspaceRoot := t.TempDir()
+	pipelinePath, sessionPath := writeValidConfigFiles(t, workspaceRoot)
+
+	fake := &storage.FakeBackend{}
+	cfg, sessionPrefix, _, _ := seedRestoreCommittedState(t, fake, pipelinePath, sessionPath)
+	seedRestoreObject(fake, sessionPrefix+"transcripts/full.json", []byte("remote-transcript"))
+
+	sessionRoot := artifacts.SessionWorkDirForCampaign(workspaceRoot, cfg.Session.Campaign, cfg.Session.SessionID)
+	mustWriteTestFile(t, filepath.Join(sessionRoot, "transcripts", "full.json"), "local-transcript")
+
+	restoreWithStoreAndRealPhases(t, fake)
+
+	var stdout bytes.Buffer
+	var stderr bytes.Buffer
+	code := Execute([]string{"restore", "--config", pipelinePath, "--session", sessionPath}, &stdout, &stderr)
+	if code == 0 {
+		t.Fatal("exit code = 0, want non-zero")
+	}
+	if !strings.Contains(stderr.String(), "conflicting path") {
+		t.Fatalf("stderr = %q, want conflict failure", stderr.String())
+	}
+	mustReadEquals(t, filepath.Join(sessionRoot, "transcripts", "full.json"), "local-transcript")
+	report := mustReadRestoreReport(t, filepath.Join(sessionRoot, "reports", "restore-latest.json"))
+	if report.Status != "failed" {
+		t.Fatalf("report status = %q, want failed", report.Status)
+	}
+	if report.Plan.Conflicts != 1 {
+		t.Fatalf("report plan.conflicts = %d, want 1", report.Plan.Conflicts)
+	}
+}
+
+func TestExecuteRestoreForceOverwritesDifferingFile(t *testing.T) {
+	workspaceRoot := t.TempDir()
+	pipelinePath, sessionPath := writeValidConfigFiles(t, workspaceRoot)
+
+	fake := &storage.FakeBackend{}
+	cfg, sessionPrefix, _, _ := seedRestoreCommittedState(t, fake, pipelinePath, sessionPath)
+	seedRestoreObject(fake, sessionPrefix+"transcripts/full.json", []byte("remote-transcript"))
+
+	sessionRoot := artifacts.SessionWorkDirForCampaign(workspaceRoot, cfg.Session.Campaign, cfg.Session.SessionID)
+	mustWriteTestFile(t, filepath.Join(sessionRoot, "transcripts", "full.json"), "local-transcript")
+
+	restoreWithStoreAndRealPhases(t, fake)
+
+	var stdout bytes.Buffer
+	var stderr bytes.Buffer
+	code := Execute([]string{"restore", "--config", pipelinePath, "--session", sessionPath, "--force"}, &stdout, &stderr)
+	if code != 0 {
+		t.Fatalf("exit code = %d, want 0; stderr=%q", code, stderr.String())
+	}
+	mustReadEquals(t, filepath.Join(sessionRoot, "transcripts", "full.json"), "remote-transcript")
+	report := mustReadRestoreReport(t, filepath.Join(sessionRoot, "reports", "restore-latest.json"))
+	if !report.Force {
+		t.Fatalf("report force = %v, want true", report.Force)
+	}
+}
+
+func TestExecuteRestoreLockConflictFailsAndWritesNothing(t *testing.T) {
+	workspaceRoot := t.TempDir()
+	pipelinePath, sessionPath := writeValidConfigFiles(t, workspaceRoot)
+
+	fake := &storage.FakeBackend{}
+	cfg, sessionPrefix, _, _ := seedRestoreCommittedState(t, fake, pipelinePath, sessionPath)
+	seedRestoreObject(fake, sessionPrefix+"transcripts/full.json", []byte("remote-transcript"))
+
+	store := artifacts.NewLocalStore(workspaceRoot)
+	lock, err := store.AcquireSessionLockFor(cfg.Session.Campaign, cfg.Session.SessionID)
+	if err != nil {
+		t.Fatalf("AcquireSessionLockFor() error = %v", err)
+	}
+	defer func() { _ = store.ReleaseSessionLock(lock) }()
+
+	restoreWithStoreAndRealPhases(t, fake)
+
+	var stdout bytes.Buffer
+	var stderr bytes.Buffer
+	code := Execute([]string{"restore", "--config", pipelinePath, "--session", sessionPath}, &stdout, &stderr)
+	if code == 0 {
+		t.Fatal("exit code = 0, want non-zero")
+	}
+	if !strings.Contains(stderr.String(), "acquire session lock") {
+		t.Fatalf("stderr = %q, want lock failure", stderr.String())
+	}
+
+	sessionRoot := artifacts.SessionWorkDirForCampaign(workspaceRoot, cfg.Session.Campaign, cfg.Session.SessionID)
+	if _, err := os.Stat(filepath.Join(sessionRoot, "transcripts", "full.json")); !os.IsNotExist(err) {
+		t.Fatalf("transcript should not be restored when lock acquisition fails; stat err=%v", err)
+	}
+}
+
+func TestExecuteRestoreInvalidManifestDoesNotCorruptExistingManifest(t *testing.T) {
+	workspaceRoot := t.TempDir()
+	pipelinePath, sessionPath := writeValidConfigFiles(t, workspaceRoot)
+
+	base := &storage.FakeBackend{}
+	cfg, sessionPrefix, manifestKey, _ := seedRestoreCommittedState(t, base, pipelinePath, sessionPath)
+	seedRestoreObject(base, sessionPrefix+"transcripts/full.json", []byte("remote-transcript"))
+
+	toggled := &stagedManifestDownloadStore{
+		delegate:       base,
+		manifestKey:    manifestKey,
+		firstManifest:  restoreManifestJSON(t, cfg.Session.SessionID, cfg.Session.Campaign),
+		secondManifest: []byte("{invalid json"),
+		manifestReads:  0,
+	}
+
+	sessionRoot := artifacts.SessionWorkDirForCampaign(workspaceRoot, cfg.Session.Campaign, cfg.Session.SessionID)
+	existing := manifest.New(cfg.Session.SessionID, nowUTC())
+	existing.Campaign = cfg.Session.Campaign
+	existingPath := filepath.Join(sessionRoot, "manifest.json")
+	manifestStore := &manifest.LocalStore{}
+	if err := manifestStore.Save(context.Background(), existingPath, existing); err != nil {
+		t.Fatalf("save existing local manifest: %v", err)
+	}
+	existingData, err := os.ReadFile(existingPath)
+	if err != nil {
+		t.Fatalf("read existing local manifest: %v", err)
+	}
+
+	restoreWithStoreAndRealPhases(t, toggled)
+
+	var stdout bytes.Buffer
+	var stderr bytes.Buffer
+	code := Execute([]string{"restore", "--config", pipelinePath, "--session", sessionPath, "--force"}, &stdout, &stderr)
+	if code == 0 {
+		t.Fatal("exit code = 0, want non-zero")
+	}
+	if !strings.Contains(stderr.String(), "validate manifest decode") {
+		t.Fatalf("stderr = %q, want manifest validation failure", stderr.String())
+	}
+	mustReadEquals(t, filepath.Join(sessionRoot, "transcripts", "full.json"), "remote-transcript")
+	report := mustReadRestoreReport(t, filepath.Join(sessionRoot, "reports", "restore-latest.json"))
+	if report.Status != "failed" {
+		t.Fatalf("report status = %q, want failed", report.Status)
+	}
+	if strings.TrimSpace(report.Error) == "" {
+		t.Fatal("report error is empty, want failure context")
+	}
+	afterData, err := os.ReadFile(existingPath)
+	if err != nil {
+		t.Fatalf("read local manifest after failure: %v", err)
+	}
+	if string(afterData) != string(existingData) {
+		t.Fatalf("local manifest changed after failed restore; before=%q after=%q", string(existingData), string(afterData))
+	}
+}
+
+func TestExecuteRestorePlanPathMismatchFails(t *testing.T) {
+	cfg := restorePlanConfig(t)
+	current := restorePlanCurrentState(t, cfg)
+	store := &storage.FakeBackend{}
+	seedRestoreObject(store, current.SessionPrefix+"transcripts/full.json", []byte("remote-transcript"))
+
+	plan := &RestorePlan{Actions: []RestoreAction{{
+		Kind:              RestoreActionDownload,
+		RemoteKey:         current.SessionPrefix + "transcripts/full.json",
+		LocalRelativePath: "transcripts/full.json",
+		LocalPath:         "/tmp/escape.txt",
+	}}}
+
+	report, err := newRestoreReport(current, plan, RestorePlanOptions{})
+	if err != nil {
+		t.Fatalf("newRestoreReport() error = %v", err)
+	}
+	_, err = executeRestorePlan(context.Background(), cfg, current, plan, report, store)
+	if err == nil {
+		t.Fatal("expected error, got nil")
+	}
+	if !strings.Contains(err.Error(), "local path mismatch") {
+		t.Fatalf("error = %v, want local path mismatch", err)
+	}
+}
+
+func mustReadRestoreReport(t *testing.T, path string) *RestoreReport {
+	t.Helper()
+	data, err := os.ReadFile(path)
+	if err != nil {
+		t.Fatalf("ReadFile(%q): %v", path, err)
+	}
+	var report RestoreReport
+	if err := json.Unmarshal(data, &report); err != nil {
+		t.Fatalf("Unmarshal restore report %q: %v", path, err)
+	}
+	return &report
+}
+
+func restoreWithStoreAndRealPhases(t *testing.T, objectStore storage.ObjectStore) {
+	t.Helper()
+	origStoreFn := newObjectStoreFromConfigFn
+	origDiscoverFn := discoverRemoteCurrentStateFn
+	origPlanFn := buildRestorePlanFn
+	origExecuteFn := executeRestorePlanFn
+	t.Cleanup(func() {
+		newObjectStoreFromConfigFn = origStoreFn
+		discoverRemoteCurrentStateFn = origDiscoverFn
+		buildRestorePlanFn = origPlanFn
+		executeRestorePlanFn = origExecuteFn
+	})
+
+	newObjectStoreFromConfigFn = func(context.Context, *config.Config) (storage.ObjectStore, error) {
+		return objectStore, nil
+	}
+	discoverRemoteCurrentStateFn = discoverRemoteCurrentState
+	buildRestorePlanFn = buildRestorePlan
+	executeRestorePlanFn = executeRestorePlan
+}
+
+func seedRestoreCommittedState(t *testing.T, fake *storage.FakeBackend, pipelinePath, sessionPath string) (*config.Config, string, string, string) {
+	t.Helper()
+	cfg, err := config.LoadWithSessionOptions(pipelinePath, sessionPath, config.SessionLoadOptions{})
+	if err != nil {
+		t.Fatalf("LoadWithSessionOptions() error = %v", err)
+	}
+	if err := config.Validate(cfg); err != nil {
+		t.Fatalf("Validate() error = %v", err)
+	}
+
+	sessionPrefix := artifacts.S3SessionPrefix(cfg.Pipeline.Storage.S3.RootPrefix, cfg.Session.Campaign, cfg.Session.SessionID)
+	manifestKey, runIDKey := artifacts.ResolveArchiveCurrentStateKeys(sessionPrefix)
+
+	seedRestoreObject(fake, runIDKey, []byte("20260519T010203Z-a1b2c3d4\n"))
+	seedRestoreObject(fake, manifestKey, restoreManifestJSON(t, cfg.Session.SessionID, cfg.Session.Campaign))
+
+	return cfg, sessionPrefix, manifestKey, runIDKey
+}
+
+func mustReadEquals(t *testing.T, path, want string) {
+	t.Helper()
+	data, err := os.ReadFile(path)
+	if err != nil {
+		t.Fatalf("ReadFile(%q): %v", path, err)
+	}
+	if string(data) != want {
+		t.Fatalf("file %q = %q, want %q", path, string(data), want)
+	}
+}
+
+type stagedManifestDownloadStore struct {
+	delegate       *storage.FakeBackend
+	manifestKey    string
+	firstManifest  []byte
+	secondManifest []byte
+	manifestReads  int
+}
+
+func (s *stagedManifestDownloadStore) List(ctx context.Context, prefix string) ([]storage.ObjectInfo, error) {
+	return s.delegate.List(ctx, prefix)
+}
+
+func (s *stagedManifestDownloadStore) Download(ctx context.Context, key, localPath string) error {
+	if strings.TrimSpace(key) == strings.TrimSpace(s.manifestKey) {
+		s.manifestReads++
+		payload := s.secondManifest
+		if s.manifestReads <= 1 {
+			payload = s.firstManifest
+		}
+		if err := os.MkdirAll(filepath.Dir(localPath), 0o755); err != nil {
+			return fmt.Errorf("download staged manifest: create parent: %w", err)
+		}
+		if err := os.WriteFile(localPath, payload, 0o644); err != nil {
+			return fmt.Errorf("download staged manifest: write local file: %w", err)
+		}
+		return nil
+	}
+	return s.delegate.Download(ctx, key, localPath)
+}
+
+func (s *stagedManifestDownloadStore) Upload(ctx context.Context, localPath, key string, opts storage.UploadOptions) (storage.ObjectInfo, error) {
+	return s.delegate.Upload(ctx, localPath, key, opts)
+}
+
+func (s *stagedManifestDownloadStore) Exists(ctx context.Context, key string) (bool, error) {
+	return s.delegate.Exists(ctx, key)
+}

internal/app/restore_plan.go

@@ -0,0 +1,344 @@
+package app
+
+import (
+	"context"
+	"fmt"
+	"io"
+	"os"
+	"path"
+	"path/filepath"
+	"sort"
+	"strings"
+
+	"gitea.maximumdirect.net/eric/narratio/internal/adapters/storage"
+	"gitea.maximumdirect.net/eric/narratio/internal/artifacts"
+	"gitea.maximumdirect.net/eric/narratio/internal/config"
+)
+
+// RestoreActionKind identifies one restore planner action.
+type RestoreActionKind string
+
+const (
+	RestoreActionDownload RestoreActionKind = "download"
+	RestoreActionSkipSame RestoreActionKind = "skip_same"
+	RestoreActionConflict RestoreActionKind = "conflict"
+)
+
+// RestoreAction is one deterministic planner action.
+type RestoreAction struct {
+	Kind              RestoreActionKind
+	RemoteKey         string
+	LocalRelativePath string
+	LocalPath         string
+	Size              int64
+	ETag              string
+	ExistsLocal       bool
+	SameLocal         bool
+	Conflict          bool
+	Reason            string
+}
+
+// RestorePlan is the deterministic output of restore planning.
+type RestorePlan struct {
+	Actions       []RestoreAction
+	DownloadCount int
+	SkipSameCount int
+	ConflictCount int
+}
+
+// RestorePlanOptions control restore planning scope and classification.
+type RestorePlanOptions struct {
+	IncludeAudio bool
+	Force        bool
+	DryRun       bool
+}
+
+func buildRestorePlan(ctx context.Context, cfg *config.Config, current *RemoteCurrentState, store storage.ObjectStore, opts RestorePlanOptions) (*RestorePlan, error) {
+	if cfg == nil || cfg.Pipeline == nil || cfg.Session == nil {
+		return nil, fmt.Errorf("resolved config with pipeline/session is required")
+	}
+	if current == nil {
+		return nil, fmt.Errorf("remote current state is required")
+	}
+	if store == nil {
+		return nil, fmt.Errorf("remote object store is required")
+	}
+	prefix := normalizeRemoteKey(current.SessionPrefix)
+	if strings.TrimSpace(prefix) == "" {
+		return nil, fmt.Errorf("remote session prefix is required")
+	}
+	if !strings.HasSuffix(prefix, "/") {
+		prefix += "/"
+	}
+
+	sessionPaths := artifacts.NewLocalStore(cfg.Pipeline.Workspace.Root).SessionPathsFor(cfg.Session.Campaign, cfg.Session.SessionID)
+	objects, err := store.List(ctx, prefix)
+	if err != nil {
+		return nil, fmt.Errorf("list remote session objects under %q: %w", prefix, err)
+	}
+
+	candidates := make(map[string]storage.ObjectInfo, len(objects)+1)
+	for _, obj := range objects {
+		key := normalizeRemoteKey(obj.Key)
+		if key == "" {
+			continue
+		}
+		obj.Key = key
+		candidates[key] = obj
+	}
+	if strings.TrimSpace(current.CurrentManifestKey) != "" {
+		key := normalizeRemoteKey(current.CurrentManifestKey)
+		if _, ok := candidates[key]; !ok {
+			candidates[key] = storage.ObjectInfo{Key: key}
+		}
+	}
+
+	actions := make([]RestoreAction, 0, len(candidates))
+	for key, obj := range candidates {
+		rel, include, err := restoreLocalRelativePathForKey(prefix, normalizeRemoteKey(current.CurrentManifestKey), key, opts.IncludeAudio)
+		if err != nil {
+			return nil, fmt.Errorf("map remote key %q: %w", key, err)
+		}
+		if !include {
+			continue
+		}
+		localPath, err := joinWithinSessionRoot(sessionPaths.Root, rel)
+		if err != nil {
+			return nil, fmt.Errorf("map remote key %q: %w", key, err)
+		}
+
+		action, err := classifyRestoreAction(ctx, store, obj, rel, localPath, opts.Force)
+		if err != nil {
+			return nil, fmt.Errorf("classify remote key %q: %w", key, err)
+		}
+		actions = append(actions, action)
+	}
+
+	sort.Slice(actions, func(i, j int) bool {
+		if actions[i].LocalRelativePath == actions[j].LocalRelativePath {
+			return actions[i].RemoteKey < actions[j].RemoteKey
+		}
+		return actions[i].LocalRelativePath < actions[j].LocalRelativePath
+	})
+
+	plan := &RestorePlan{Actions: actions}
+	for _, action := range actions {
+		switch action.Kind {
+		case RestoreActionDownload:
+			plan.DownloadCount++
+		case RestoreActionSkipSame:
+			plan.SkipSameCount++
+		case RestoreActionConflict:
+			plan.ConflictCount++
+		}
+	}
+
+	_ = opts.DryRun
+	return plan, nil
+}
+
+func normalizeRemoteKey(v string) string {
+	return strings.Trim(strings.ReplaceAll(strings.TrimSpace(v), "\\", "/"), "/")
+}
+
+func restoreLocalRelativePathForKey(sessionPrefix, currentManifestKey, key string, includeAudio bool) (string, bool, error) {
+	if key == "" {
+		return "", false, nil
+	}
+	if key == currentManifestKey {
+		return config.PathManifestFile, true, nil
+	}
+	if !strings.HasPrefix(key, sessionPrefix) {
+		return "", false, fmt.Errorf("key is outside resolved session prefix %q", sessionPrefix)
+	}
+
+	rel := strings.TrimPrefix(key, sessionPrefix)
+	rel = strings.TrimSpace(rel)
+	if rel == "" {
+		return "", false, nil
+	}
+
+	cleanRel := path.Clean(rel)
+	if cleanRel == "." || cleanRel == "" {
+		return "", false, nil
+	}
+	if cleanRel == ".." || strings.HasPrefix(cleanRel, "../") || strings.HasPrefix(cleanRel, "/") {
+		return "", false, fmt.Errorf("key relative path %q escapes session scope", rel)
+	}
+
+	if cleanRel == config.PathManifestFile {
+		return config.PathManifestFile, true, nil
+	}
+	if strings.HasPrefix(cleanRel, config.S3CurrentSegment+"/") {
+		return "", false, nil
+	}
+	if strings.HasPrefix(cleanRel, config.S3RunsSegment+"/") {
+		return "", false, nil
+	}
+
+	excludedRoots := []string{
+		config.PathLogsDirSegment,
+		config.PathReportsDirSegment,
+		config.PathConfigDirSegment,
+		config.PathInputsDirSegment,
+	}
+	for _, root := range excludedRoots {
+		if cleanRel == root || strings.HasPrefix(cleanRel, root+"/") {
+			return "", false, nil
+		}
+	}
+
+	if cleanRel == config.PathTranscriptsSegment || strings.HasPrefix(cleanRel, config.PathTranscriptsSegment+"/") {
+		return cleanRel, true, nil
+	}
+	if cleanRel == config.PathArtifactsDirSegment || strings.HasPrefix(cleanRel, config.PathArtifactsDirSegment+"/") {
+		return cleanRel, true, nil
+	}
+	if includeAudio && (cleanRel == config.PathAudioDirSegment || strings.HasPrefix(cleanRel, config.PathAudioDirSegment+"/")) {
+		return cleanRel, true, nil
+	}
+
+	return "", false, nil
+}
+
+func joinWithinSessionRoot(sessionRoot, relative string) (string, error) {
+	if strings.TrimSpace(sessionRoot) == "" {
+		return "", fmt.Errorf("session root is required")
+	}
+	cleanRel := path.Clean(strings.TrimSpace(relative))
+	if cleanRel == "." || cleanRel == "" {
+		return "", fmt.Errorf("relative path is required")
+	}
+	if cleanRel == ".." || strings.HasPrefix(cleanRel, "../") || strings.HasPrefix(cleanRel, "/") {
+		return "", fmt.Errorf("relative path escapes session root")
+	}
+	abs := filepath.Clean(filepath.Join(sessionRoot, filepath.FromSlash(cleanRel)))
+	root := filepath.Clean(sessionRoot)
+	if abs != root && !strings.HasPrefix(abs, root+string(filepath.Separator)) {
+		return "", fmt.Errorf("resolved local path escapes session root")
+	}
+	return abs, nil
+}
+
+func classifyRestoreAction(
+	ctx context.Context,
+	store storage.ObjectStore,
+	object storage.ObjectInfo,
+	localRelPath string,
+	localPath string,
+	force bool,
+) (RestoreAction, error) {
+	action := RestoreAction{
+		RemoteKey:         normalizeRemoteKey(object.Key),
+		LocalRelativePath: localRelPath,
+		LocalPath:         localPath,
+		Size:              object.Size,
+		ETag:              object.ETag,
+	}
+
+	info, err := os.Stat(localPath)
+	if err != nil {
+		if os.IsNotExist(err) {
+			action.Kind = RestoreActionDownload
+			action.Reason = "local file missing"
+			return action, nil
+		}
+		return RestoreAction{}, fmt.Errorf("stat local file: %w", err)
+	}
+
+	action.ExistsLocal = true
+	if info.IsDir() {
+		action.Kind = RestoreActionConflict
+		action.Conflict = true
+		action.Reason = "local path is a directory"
+		return action, nil
+	}
+
+	if object.Size > 0 && info.Size() != object.Size {
+		if force {
+			action.Kind = RestoreActionDownload
+			action.Reason = "local file differs (size mismatch); overwrite with --force"
+			return action, nil
+		}
+		action.Kind = RestoreActionConflict
+		action.Conflict = true
+		action.Reason = "local file differs (size mismatch)"
+		return action, nil
+	}
+
+	localDigest, err := artifacts.SHA256File(localPath)
+	if err != nil {
+		return RestoreAction{}, fmt.Errorf("checksum local file: %w", err)
+	}
+	remotePath, err := downloadObjectToTemp(ctx, store, action.RemoteKey, "narratio-restore-plan-remote-*.tmp")
+	if err != nil {
+		return RestoreAction{}, fmt.Errorf("download remote object: %w", err)
+	}
+	defer func() { _ = os.Remove(remotePath) }()
+
+	remoteDigest, err := artifacts.SHA256File(remotePath)
+	if err != nil {
+		return RestoreAction{}, fmt.Errorf("checksum remote object: %w", err)
+	}
+
+	if remoteDigest == localDigest {
+		action.Kind = RestoreActionSkipSame
+		action.SameLocal = true
+		action.Reason = "local file matches remote content"
+		return action, nil
+	}
+
+	if force {
+		action.Kind = RestoreActionDownload
+		action.Reason = "local file differs; overwrite with --force"
+		return action, nil
+	}
+
+	action.Kind = RestoreActionConflict
+	action.Conflict = true
+	action.Reason = "local file differs"
+	return action, nil
+}
+
+func writeRestorePlan(out io.Writer, current *RemoteCurrentState, plan *RestorePlan, opts RestorePlanOptions) error {
+	if out == nil {
+		return fmt.Errorf("output writer is required")
+	}
+	if current == nil {
+		return fmt.Errorf("remote current state is required")
+	}
+	if plan == nil {
+		return fmt.Errorf("restore plan is required")
+	}
+
+	if _, err := fmt.Fprintf(
+		out,
+		"restore plan: session %s/%s run=%s actions=%d download=%d skip_same=%d conflict=%d dry_run=%t force=%t include_audio=%t\n",
+		current.Campaign,
+		current.SessionID,
+		current.RunID,
+		len(plan.Actions),
+		plan.DownloadCount,
+		plan.SkipSameCount,
+		plan.ConflictCount,
+		opts.DryRun,
+		opts.Force,
+		opts.IncludeAudio,
+	); err != nil {
+		return err
+	}
+	for _, action := range plan.Actions {
+		if _, err := fmt.Fprintf(out, "%s %s <- %s", action.Kind, action.LocalRelativePath, action.RemoteKey); err != nil {
+			return err
+		}
+		if strings.TrimSpace(action.Reason) != "" {
+			if _, err := fmt.Fprintf(out, " (%s)", action.Reason); err != nil {
+				return err
+			}
+		}
+		if _, err := fmt.Fprintln(out); err != nil {
+			return err
+		}
+	}
+	return nil
+}

internal/app/restore_plan_test.go

@@ -0,0 +1,199 @@
+package app
+
+import (
+	"context"
+	"path/filepath"
+	"reflect"
+	"strings"
+	"testing"
+
+	"gitea.maximumdirect.net/eric/narratio/internal/adapters/storage"
+	"gitea.maximumdirect.net/eric/narratio/internal/artifacts"
+	"gitea.maximumdirect.net/eric/narratio/internal/config"
+)
+
+func TestRestorePlanDefaultScope(t *testing.T) {
+	cfg := restorePlanConfig(t)
+	current := restorePlanCurrentState(t, cfg)
+	store := &storage.FakeBackend{}
+
+	seedRestoreObject(store, current.CurrentManifestKey, []byte(`{"session_id":"2026-05-03"}`))
+	seedRestoreObject(store, current.SessionPrefix+"transcripts/full.json", []byte(`{"segments":[1]}`))
+	seedRestoreObject(store, current.SessionPrefix+"artifacts/session_recap.md", []byte("# recap\n"))
+	seedRestoreObject(store, current.SessionPrefix+"audio/alice.flac", []byte("audio"))
+	seedRestoreObject(store, current.SessionPrefix+"runs/20260519T010203Z-a1b2/manifest.json", []byte("{}"))
+	seedRestoreObject(store, current.SessionPrefix+"logs/archive.log", []byte("log"))
+
+	plan, err := buildRestorePlan(context.Background(), cfg, current, store, RestorePlanOptions{})
+	if err != nil {
+		t.Fatalf("buildRestorePlan() error = %v", err)
+	}
+
+	got := actionRelPaths(plan.Actions)
+	want := []string{"artifacts/session_recap.md", "manifest.json", "transcripts/full.json"}
+	if !reflect.DeepEqual(got, want) {
+		t.Fatalf("action local paths = %#v, want %#v", got, want)
+	}
+	if plan.DownloadCount != 3 || plan.SkipSameCount != 0 || plan.ConflictCount != 0 {
+		t.Fatalf("counts = download=%d skip_same=%d conflict=%d, want 3/0/0", plan.DownloadCount, plan.SkipSameCount, plan.ConflictCount)
+	}
+}
+
+func TestRestorePlanIncludeAudio(t *testing.T) {
+	cfg := restorePlanConfig(t)
+	current := restorePlanCurrentState(t, cfg)
+	store := &storage.FakeBackend{}
+
+	seedRestoreObject(store, current.CurrentManifestKey, []byte(`{"session_id":"2026-05-03"}`))
+	seedRestoreObject(store, current.SessionPrefix+"audio/alice.flac", []byte("audio"))
+
+	plan, err := buildRestorePlan(context.Background(), cfg, current, store, RestorePlanOptions{IncludeAudio: true})
+	if err != nil {
+		t.Fatalf("buildRestorePlan() error = %v", err)
+	}
+	got := actionRelPaths(plan.Actions)
+	want := []string{"audio/alice.flac", "manifest.json"}
+	if !reflect.DeepEqual(got, want) {
+		t.Fatalf("action local paths = %#v, want %#v", got, want)
+	}
+}
+
+func TestRestorePlanClassifiesSameAndConflict(t *testing.T) {
+	cfg := restorePlanConfig(t)
+	current := restorePlanCurrentState(t, cfg)
+	store := &storage.FakeBackend{}
+
+	seedRestoreObject(store, current.CurrentManifestKey, []byte(`{"session_id":"2026-05-03"}`))
+	seedRestoreObject(store, current.SessionPrefix+"transcripts/full.json", []byte(`{"segments":[1]}`))
+	seedRestoreObject(store, current.SessionPrefix+"artifacts/session_recap.md", []byte("remote-content\n"))
+
+	sessionRoot := artifacts.SessionWorkDirForCampaign(cfg.Pipeline.Workspace.Root, cfg.Session.Campaign, cfg.Session.SessionID)
+	mustWriteTestFile(t, filepath.Join(sessionRoot, "transcripts", "full.json"), `{"segments":[1]}`)
+	mustWriteTestFile(t, filepath.Join(sessionRoot, "artifacts", "session_recap.md"), "different\n")
+
+	plan, err := buildRestorePlan(context.Background(), cfg, current, store, RestorePlanOptions{})
+	if err != nil {
+		t.Fatalf("buildRestorePlan() error = %v", err)
+	}
+
+	if plan.SkipSameCount != 1 {
+		t.Fatalf("SkipSameCount = %d, want 1", plan.SkipSameCount)
+	}
+	if plan.ConflictCount != 1 {
+		t.Fatalf("ConflictCount = %d, want 1", plan.ConflictCount)
+	}
+
+	actionByRel := map[string]RestoreAction{}
+	for _, action := range plan.Actions {
+		actionByRel[action.LocalRelativePath] = action
+	}
+	if actionByRel["transcripts/full.json"].Kind != RestoreActionSkipSame {
+		t.Fatalf("transcripts/full.json kind = %q, want %q", actionByRel["transcripts/full.json"].Kind, RestoreActionSkipSame)
+	}
+	if actionByRel["artifacts/session_recap.md"].Kind != RestoreActionConflict {
+		t.Fatalf("artifacts/session_recap.md kind = %q, want %q", actionByRel["artifacts/session_recap.md"].Kind, RestoreActionConflict)
+	}
+}
+
+func TestRestorePlanForceTurnsConflictsIntoDownloads(t *testing.T) {
+	cfg := restorePlanConfig(t)
+	current := restorePlanCurrentState(t, cfg)
+	store := &storage.FakeBackend{}
+
+	seedRestoreObject(store, current.CurrentManifestKey, []byte(`{"session_id":"2026-05-03"}`))
+	seedRestoreObject(store, current.SessionPrefix+"artifacts/session_recap.md", []byte("remote-content\n"))
+
+	sessionRoot := artifacts.SessionWorkDirForCampaign(cfg.Pipeline.Workspace.Root, cfg.Session.Campaign, cfg.Session.SessionID)
+	mustWriteTestFile(t, filepath.Join(sessionRoot, "artifacts", "session_recap.md"), "different\n")
+
+	plan, err := buildRestorePlan(context.Background(), cfg, current, store, RestorePlanOptions{Force: true})
+	if err != nil {
+		t.Fatalf("buildRestorePlan() error = %v", err)
+	}
+
+	actionByRel := map[string]RestoreAction{}
+	for _, action := range plan.Actions {
+		actionByRel[action.LocalRelativePath] = action
+	}
+	recap := actionByRel["artifacts/session_recap.md"]
+	if recap.Kind != RestoreActionDownload {
+		t.Fatalf("artifacts/session_recap.md kind = %q, want %q", recap.Kind, RestoreActionDownload)
+	}
+	if plan.ConflictCount != 0 {
+		t.Fatalf("ConflictCount = %d, want 0", plan.ConflictCount)
+	}
+}
+
+func TestRestorePlanTraversalUnsafeKeyFails(t *testing.T) {
+	cfg := restorePlanConfig(t)
+	current := restorePlanCurrentState(t, cfg)
+	store := &storage.FakeBackend{}
+
+	seedRestoreObject(store, current.CurrentManifestKey, []byte(`{"session_id":"2026-05-03"}`))
+	seedRestoreObject(store, current.SessionPrefix+"artifacts/../../escape.txt", []byte("bad"))
+
+	_, err := buildRestorePlan(context.Background(), cfg, current, store, RestorePlanOptions{})
+	if err == nil {
+		t.Fatal("expected error, got nil")
+	}
+	if !strings.Contains(err.Error(), "escapes session scope") {
+		t.Fatalf("error = %v, want traversal safety failure", err)
+	}
+}
+
+func seedRestoreObject(store *storage.FakeBackend, key string, data []byte) {
+	store.SeedObject(storage.FakeObject{Key: key, Data: data})
+}
+
+func actionRelPaths(actions []RestoreAction) []string {
+	out := make([]string, 0, len(actions))
+	for _, action := range actions {
+		out = append(out, action.LocalRelativePath)
+	}
+	return out
+}
+
+func restorePlanConfig(t *testing.T) *config.Config {
+	t.Helper()
+	workspaceRoot := t.TempDir()
+	return &config.Config{
+		Pipeline: &config.PipelineConfig{
+			Workspace: config.WorkspaceConfig{Root: workspaceRoot},
+		},
+		Session: &config.SessionConfig{
+			SessionID: "2026-05-03",
+			Campaign:  "sample-campaign",
+		},
+	}
+}
+
+func restorePlanCurrentState(t *testing.T, cfg *config.Config) *RemoteCurrentState {
+	t.Helper()
+	sessionPrefix := artifacts.S3SessionPrefix("dnd", cfg.Session.Campaign, cfg.Session.SessionID)
+	manifestKey, runIDKey := artifacts.ResolveArchiveCurrentStateKeys(sessionPrefix)
+	return &RemoteCurrentState{
+		Bucket:             "test-bucket",
+		SessionPrefix:      sessionPrefix,
+		CurrentManifestKey: manifestKey,
+		CurrentRunIDKey:    runIDKey,
+		RunID:              "20260519T010203Z-a1b2c3d4",
+		SessionID:          cfg.Session.SessionID,
+		Campaign:           cfg.Session.Campaign,
+	}
+}
+
+func TestWriteRestorePlan(t *testing.T) {
+	current := &RemoteCurrentState{Campaign: "sample-campaign", SessionID: "2026-05-03", RunID: "r-1"}
+	plan := &RestorePlan{Actions: []RestoreAction{{Kind: RestoreActionDownload, LocalRelativePath: "manifest.json", RemoteKey: "k", Reason: "local file missing"}}, DownloadCount: 1}
+	var out strings.Builder
+	if err := writeRestorePlan(&out, current, plan, RestorePlanOptions{DryRun: true}); err != nil {
+		t.Fatalf("writeRestorePlan() error = %v", err)
+	}
+	text := out.String()
+	if !strings.Contains(text, "restore plan: session sample-campaign/2026-05-03 run=r-1") {
+		t.Fatalf("output = %q, want plan summary", text)
+	}
+	if !strings.Contains(text, "download manifest.json <- k") {
+		t.Fatalf("output = %q, want action line", text)
+	}
+}

internal/app/restore_report.go

@@ -0,0 +1,243 @@
+package app
+
+import (
+	"encoding/json"
+	"fmt"
+	"io"
+	"path/filepath"
+	"strings"
+
+	"gitea.maximumdirect.net/eric/narratio/internal/artifacts"
+	"gitea.maximumdirect.net/eric/narratio/internal/config"
+)
+
+// RestoreReport is the durable restore diagnostic model.
+type RestoreReport struct {
+	GeneratedAt   string                `json:"generated_at"`
+	SessionID     string                `json:"session_id"`
+	Campaign      string                `json:"campaign"`
+	RunID         string                `json:"run_id"`
+	DryRun        bool                  `json:"dry_run"`
+	Force         bool                  `json:"force"`
+	IncludeAudio  bool                  `json:"include_audio"`
+	Status        string                `json:"status"`
+	Error         string                `json:"error,omitempty"`
+	Plan          RestorePlanSummary    `json:"plan"`
+	Execution     RestoreExecutionStats `json:"execution"`
+	Actions       []RestoreReportAction `json:"actions"`
+	reportPathRel string
+}
+
+type RestorePlanSummary struct {
+	Actions   int `json:"actions"`
+	Download  int `json:"download"`
+	SkipSame  int `json:"skip_same"`
+	Conflicts int `json:"conflicts"`
+}
+
+type RestoreExecutionStats struct {
+	Downloaded int `json:"downloaded"`
+	Failed     int `json:"failed"`
+}
+
+type RestoreReportAction struct {
+	Kind              string `json:"kind"`
+	LocalRelativePath string `json:"local_relative_path"`
+	RemoteKey         string `json:"remote_key"`
+	Reason            string `json:"reason,omitempty"`
+	Status            string `json:"status"`
+	Error             string `json:"error,omitempty"`
+}
+
+func newRestoreReport(current *RemoteCurrentState, plan *RestorePlan, opts RestorePlanOptions) (*RestoreReport, error) {
+	if current == nil {
+		return nil, fmt.Errorf("remote current state is required")
+	}
+	if plan == nil {
+		return nil, fmt.Errorf("restore plan is required")
+	}
+	r := &RestoreReport{
+		GeneratedAt:  nowUTC().Format("2006-01-02T15:04:05.999999999Z07:00"),
+		SessionID:    current.SessionID,
+		Campaign:     current.Campaign,
+		RunID:        current.RunID,
+		DryRun:       opts.DryRun,
+		Force:        opts.Force,
+		IncludeAudio: opts.IncludeAudio,
+		Status:       "planned",
+		Plan: RestorePlanSummary{
+			Actions:   len(plan.Actions),
+			Download:  plan.DownloadCount,
+			SkipSame:  plan.SkipSameCount,
+			Conflicts: plan.ConflictCount,
+		},
+		Actions:       make([]RestoreReportAction, 0, len(plan.Actions)),
+		reportPathRel: filepath.ToSlash(filepath.Join(config.PathReportsDirSegment, "restore-latest.json")),
+	}
+	for _, action := range plan.Actions {
+		r.Actions = append(r.Actions, RestoreReportAction{
+			Kind:              string(action.Kind),
+			LocalRelativePath: action.LocalRelativePath,
+			RemoteKey:         action.RemoteKey,
+			Reason:            action.Reason,
+			Status:            initialRestoreActionStatus(action.Kind),
+		})
+	}
+	return r, nil
+}
+
+func initialRestoreActionStatus(kind RestoreActionKind) string {
+	switch kind {
+	case RestoreActionDownload:
+		return "planned_download"
+	case RestoreActionSkipSame:
+		return "skipped_same"
+	case RestoreActionConflict:
+		return "conflict"
+	default:
+		return "planned"
+	}
+}
+
+func (r *RestoreReport) markDownloaded(action RestoreAction) {
+	if r == nil {
+		return
+	}
+	if idx := r.findAction(action); idx >= 0 {
+		r.Actions[idx].Status = "downloaded"
+		r.Actions[idx].Error = ""
+	}
+	r.Execution.Downloaded++
+}
+
+func (r *RestoreReport) markFailed(action RestoreAction, err error) {
+	if r == nil {
+		return
+	}
+	if idx := r.findAction(action); idx >= 0 {
+		r.Actions[idx].Status = "failed"
+		if err != nil {
+			r.Actions[idx].Error = err.Error()
+		}
+	}
+	r.Execution.Failed++
+}
+
+func (r *RestoreReport) setFailed(err error) {
+	if r == nil {
+		return
+	}
+	r.Status = "failed"
+	if err != nil {
+		r.Error = err.Error()
+	}
+}
+
+func (r *RestoreReport) setSucceeded() {
+	if r == nil {
+		return
+	}
+	r.Status = "succeeded"
+	r.Error = ""
+}
+
+func (r *RestoreReport) findAction(action RestoreAction) int {
+	if r == nil {
+		return -1
+	}
+	for i := range r.Actions {
+		if r.Actions[i].LocalRelativePath == action.LocalRelativePath && r.Actions[i].RemoteKey == action.RemoteKey {
+			return i
+		}
+	}
+	return -1
+}
+
+func writeRestoreDryRunSummary(out io.Writer, report *RestoreReport) error {
+	if out == nil {
+		return fmt.Errorf("output writer is required")
+	}
+	if report == nil {
+		return fmt.Errorf("restore report is required")
+	}
+	if _, err := fmt.Fprintf(out, "Restore plan for %s/%s\n", report.Campaign, report.SessionID); err != nil {
+		return err
+	}
+	if _, err := fmt.Fprintf(out, "Remote run: %s\n", report.RunID); err != nil {
+		return err
+	}
+	if _, err := fmt.Fprintf(out, "Would download: %d\n", report.Plan.Download); err != nil {
+		return err
+	}
+	if _, err := fmt.Fprintf(out, "Would skip unchanged: %d\n", report.Plan.SkipSame); err != nil {
+		return err
+	}
+	if _, err := fmt.Fprintf(out, "Conflicts: %d\n", report.Plan.Conflicts); err != nil {
+		return err
+	}
+	for _, action := range report.Actions {
+		line := ""
+		switch action.Status {
+		case "planned_download":
+			line = "Would download: " + action.LocalRelativePath
+		case "skipped_same":
+			line = "Would skip unchanged: " + action.LocalRelativePath
+		case "conflict":
+			line = "Conflict: " + action.LocalRelativePath
+		default:
+			line = strings.TrimSpace(action.Kind) + ": " + action.LocalRelativePath
+		}
+		if _, err := fmt.Fprintln(out, line); err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+func writeRestoreSuccessSummary(out io.Writer, report *RestoreReport) error {
+	if out == nil {
+		return fmt.Errorf("output writer is required")
+	}
+	if report == nil {
+		return fmt.Errorf("restore report is required")
+	}
+	if _, err := fmt.Fprintf(out, "Restored session archive for %s/%s\n", report.Campaign, report.SessionID); err != nil {
+		return err
+	}
+	if _, err := fmt.Fprintf(out, "Remote run: %s\n", report.RunID); err != nil {
+		return err
+	}
+	if _, err := fmt.Fprintf(out, "Downloaded: %d\n", report.Execution.Downloaded); err != nil {
+		return err
+	}
+	if _, err := fmt.Fprintf(out, "Skipped unchanged: %d\n", report.Plan.SkipSame); err != nil {
+		return err
+	}
+	if _, err := fmt.Fprintf(out, "Conflicts: %d\n", report.Plan.Conflicts); err != nil {
+		return err
+	}
+	return nil
+}
+
+func persistRestoreReport(store artifacts.Store, cfg *config.Config, report *RestoreReport) (string, error) {
+	if store == nil {
+		return "", fmt.Errorf("artifact store is required")
+	}
+	if cfg == nil || cfg.Pipeline == nil || cfg.Session == nil {
+		return "", fmt.Errorf("resolved config with pipeline/session is required")
+	}
+	if report == nil {
+		return "", fmt.Errorf("restore report is required")
+	}
+	sessionRoot := artifacts.SessionWorkDirForCampaign(cfg.Pipeline.Workspace.Root, cfg.Session.Campaign, cfg.Session.SessionID)
+	reportPath := filepath.Join(sessionRoot, filepath.FromSlash(report.reportPathRel))
+	payload, err := json.MarshalIndent(report, "", "  ")
+	if err != nil {
+		return "", fmt.Errorf("marshal restore report: %w", err)
+	}
+	payload = append(payload, '\n')
+	if err := store.WriteFileAtomic(reportPath, payload, 0o644); err != nil {
+		return "", fmt.Errorf("write restore report %q: %w", reportPath, err)
+	}
+	return reportPath, nil
+}

internal/app/restore_test.go

@@ -0,0 +1,409 @@
+package app
+
+import (
+	"bytes"
+	"context"
+	"fmt"
+	"os"
+	"path/filepath"
+	"strings"
+	"testing"
+
+	"gitea.maximumdirect.net/eric/narratio/internal/adapters/storage"
+	"gitea.maximumdirect.net/eric/narratio/internal/artifacts"
+	"gitea.maximumdirect.net/eric/narratio/internal/config"
+)
+
+func TestExecuteRestoreHelp(t *testing.T) {
+	var stdout bytes.Buffer
+	var stderr bytes.Buffer
+
+	code := Execute([]string{"restore", "--help"}, &stdout, &stderr)
+	if code != 0 {
+		t.Fatalf("exit code = %d, want 0", code)
+	}
+	if stderr.Len() != 0 {
+		t.Fatalf("stderr = %q, want empty", stderr.String())
+	}
+	out := stdout.String()
+	if !strings.Contains(out, "Usage: narratio restore") {
+		t.Fatalf("stdout = %q, want restore usage", out)
+	}
+	if !strings.Contains(out, "--include-audio") {
+		t.Fatalf("stdout = %q, want --include-audio flag", out)
+	}
+}
+
+func TestExecuteRestoreRecognizedAndReturnsNYI(t *testing.T) {
+	origStoreFn := newObjectStoreFromConfigFn
+	origDiscoverFn := discoverRemoteCurrentStateFn
+	origPlanFn := buildRestorePlanFn
+	origExecuteFn := executeRestorePlanFn
+	t.Cleanup(func() {
+		newObjectStoreFromConfigFn = origStoreFn
+		discoverRemoteCurrentStateFn = origDiscoverFn
+		buildRestorePlanFn = origPlanFn
+		executeRestorePlanFn = origExecuteFn
+	})
+	newObjectStoreFromConfigFn = func(context.Context, *config.Config) (storage.ObjectStore, error) {
+		return &storage.FakeBackend{}, nil
+	}
+	discoverRemoteCurrentStateFn = func(context.Context, *config.Config, storage.ObjectStore) (*RemoteCurrentState, error) {
+		return &RemoteCurrentState{
+			SessionID: "2026-05-03",
+			Campaign:  "sample-campaign",
+			RunID:     "20260519T010203Z-a1b2c3d4",
+		}, nil
+	}
+	buildRestorePlanFn = func(context.Context, *config.Config, *RemoteCurrentState, storage.ObjectStore, RestorePlanOptions) (*RestorePlan, error) {
+		return &RestorePlan{
+			Actions: []RestoreAction{
+				{
+					Kind:              RestoreActionDownload,
+					LocalRelativePath: "manifest.json",
+					RemoteKey:         "dnd/campaigns/sample-campaign/sessions/2026-05-03/current/manifest.json",
+					Reason:            "local file missing",
+				},
+			},
+			DownloadCount: 1,
+		}, nil
+	}
+
+	workspaceRoot := t.TempDir()
+	pipelinePath, sessionPath := writeValidConfigFiles(t, workspaceRoot)
+
+	var stdout bytes.Buffer
+	var stderr bytes.Buffer
+	code := Execute(
+		[]string{
+			"restore",
+			"--config", pipelinePath,
+			"--session", sessionPath,
+			"--session-id", "2026-05-03",
+			"--dry-run",
+			"--force",
+			"--include-audio",
+		},
+		&stdout,
+		&stderr,
+	)
+	if code != 0 {
+		t.Fatalf("exit code = %d, want 0 for --dry-run restore planning; stderr=%q", code, stderr.String())
+	}
+	if stderr.Len() != 0 {
+		t.Fatalf("stderr = %q, want empty", stderr.String())
+	}
+	outText := stdout.String()
+	if !strings.Contains(outText, "Restore plan for sample-campaign/2026-05-03") {
+		t.Fatalf("stdout = %q, want restore plan summary", outText)
+	}
+	if !strings.Contains(outText, "Would download: 1") {
+		t.Fatalf("stdout = %q, want plan count output", outText)
+	}
+	if !strings.Contains(outText, "Would download: manifest.json") {
+		t.Fatalf("stdout = %q, want action output", outText)
+	}
+
+	manifestPath := artifacts.SessionManifestPathForCampaign(workspaceRoot, "sample-campaign", "2026-05-03")
+	if _, err := os.Stat(manifestPath); !os.IsNotExist(err) {
+		t.Fatalf("manifest should not be created during phase-4 restore planning; stat err=%v", err)
+	}
+	reportPath := filepath.Join(workspaceRoot, "work", "sample-campaign", "2026-05-03", "reports", "restore-latest.json")
+	if _, err := os.Stat(reportPath); !os.IsNotExist(err) {
+		t.Fatalf("restore report should not be written during dry-run; stat err=%v", err)
+	}
+}
+
+func TestExecuteRestoreRejectsUnexpectedPositionalArguments(t *testing.T) {
+	workspaceRoot := t.TempDir()
+	pipelinePath, sessionPath := writeValidConfigFiles(t, workspaceRoot)
+
+	var stdout bytes.Buffer
+	var stderr bytes.Buffer
+	code := Execute([]string{"restore", "--config", pipelinePath, "--session", sessionPath, "extra"}, &stdout, &stderr)
+	if code == 0 {
+		t.Fatal("exit code = 0, want non-zero")
+	}
+	if !strings.Contains(stderr.String(), "restore: unexpected positional arguments") {
+		t.Fatalf("stderr = %q, want positional-args failure", stderr.String())
+	}
+}
+
+func TestExecuteRestoreFailsWhenStorageBackendNotConfigured(t *testing.T) {
+	origStoreFn := newObjectStoreFromConfigFn
+	origDiscoverFn := discoverRemoteCurrentStateFn
+	t.Cleanup(func() {
+		newObjectStoreFromConfigFn = origStoreFn
+		discoverRemoteCurrentStateFn = origDiscoverFn
+	})
+
+	workspaceRoot := t.TempDir()
+	pipelinePath, sessionPath := writeRestoreConfigWithoutStorage(t, workspaceRoot)
+
+	var stdout bytes.Buffer
+	var stderr bytes.Buffer
+	code := Execute([]string{"restore", "--config", pipelinePath, "--session", sessionPath}, &stdout, &stderr)
+	if code == 0 {
+		t.Fatal("exit code = 0, want non-zero")
+	}
+	if !strings.Contains(stderr.String(), "no remote object store backend is configured") {
+		t.Fatalf("stderr = %q, want storage backend preflight failure", stderr.String())
+	}
+}
+
+func TestExecuteRestoreDiscoveryErrorSurfaced(t *testing.T) {
+	origStoreFn := newObjectStoreFromConfigFn
+	origDiscoverFn := discoverRemoteCurrentStateFn
+	t.Cleanup(func() {
+		newObjectStoreFromConfigFn = origStoreFn
+		discoverRemoteCurrentStateFn = origDiscoverFn
+	})
+	newObjectStoreFromConfigFn = func(context.Context, *config.Config) (storage.ObjectStore, error) {
+		return &storage.FakeBackend{}, nil
+	}
+	discoverRemoteCurrentStateFn = func(context.Context, *config.Config, storage.ObjectStore) (*RemoteCurrentState, error) {
+		return nil, fmt.Errorf("remote current run pointer missing: %q", "dnd/campaigns/sample-campaign/sessions/2026-05-03/current/run_id.txt")
+	}
+
+	workspaceRoot := t.TempDir()
+	pipelinePath, sessionPath := writeValidConfigFiles(t, workspaceRoot)
+
+	var stdout bytes.Buffer
+	var stderr bytes.Buffer
+	code := Execute([]string{"restore", "--config", pipelinePath, "--session", sessionPath}, &stdout, &stderr)
+	if code == 0 {
+		t.Fatal("exit code = 0, want non-zero")
+	}
+	if !strings.Contains(stderr.String(), "remote current run pointer missing") {
+		t.Fatalf("stderr = %q, want discovery error context", stderr.String())
+	}
+}
+
+func TestExecuteRestoreLoadsSecretsBeforeObjectStoreInit(t *testing.T) {
+	origStoreFn := newObjectStoreFromConfigFn
+	origDiscoverFn := discoverRemoteCurrentStateFn
+	origPlanFn := buildRestorePlanFn
+	origExecuteFn := executeRestorePlanFn
+	t.Cleanup(func() {
+		newObjectStoreFromConfigFn = origStoreFn
+		discoverRemoteCurrentStateFn = origDiscoverFn
+		buildRestorePlanFn = origPlanFn
+		executeRestorePlanFn = origExecuteFn
+	})
+
+	const accessKeyEnv = "OBJECT_STORAGE_KEY_ID"
+	const secretKeyEnv = "OBJECT_STORAGE_KEY"
+	restoreEnv := func(name string) {
+		value, exists := os.LookupEnv(name)
+		_ = os.Unsetenv(name)
+		t.Cleanup(func() {
+			if exists {
+				_ = os.Setenv(name, value)
+				return
+			}
+			_ = os.Unsetenv(name)
+		})
+	}
+	restoreEnv(accessKeyEnv)
+	restoreEnv(secretKeyEnv)
+
+	workspaceRoot := t.TempDir()
+	pipelinePath, sessionPath := writeValidConfigFiles(t, workspaceRoot)
+	secretsDir := filepath.Join(t.TempDir(), "secrets")
+	mustWriteTestFile(t, filepath.Join(secretsDir, accessKeyEnv), "test-access-key-id\n")
+	mustWriteTestFile(t, filepath.Join(secretsDir, secretKeyEnv), "test-secret-key\n")
+	f, err := os.OpenFile(pipelinePath, os.O_APPEND|os.O_WRONLY, 0)
+	if err != nil {
+		t.Fatalf("open pipeline config for append: %v", err)
+	}
+	defer f.Close()
+	if _, err := f.WriteString("\nsecrets:\n  env_dir: " + secretsDir + "\n"); err != nil {
+		t.Fatalf("append secrets config: %v", err)
+	}
+
+	storeInitCalled := false
+	newObjectStoreFromConfigFn = func(context.Context, *config.Config) (storage.ObjectStore, error) {
+		storeInitCalled = true
+		gotID, okID := os.LookupEnv(accessKeyEnv)
+		if !okID || gotID != "test-access-key-id" {
+			return nil, fmt.Errorf("missing or unexpected %s: %q (set=%t)", accessKeyEnv, gotID, okID)
+		}
+		gotSecret, okSecret := os.LookupEnv(secretKeyEnv)
+		if !okSecret || gotSecret != "test-secret-key" {
+			return nil, fmt.Errorf("missing or unexpected %s: %q (set=%t)", secretKeyEnv, gotSecret, okSecret)
+		}
+		return &storage.FakeBackend{}, nil
+	}
+	discoverRemoteCurrentStateFn = func(context.Context, *config.Config, storage.ObjectStore) (*RemoteCurrentState, error) {
+		return &RemoteCurrentState{
+			SessionID: "2026-05-03",
+			Campaign:  "sample-campaign",
+			RunID:     "20260519T010203Z-a1b2c3d4",
+		}, nil
+	}
+	buildRestorePlanFn = func(context.Context, *config.Config, *RemoteCurrentState, storage.ObjectStore, RestorePlanOptions) (*RestorePlan, error) {
+		return &RestorePlan{
+			Actions: []RestoreAction{
+				{
+					Kind:              RestoreActionDownload,
+					LocalRelativePath: "manifest.json",
+					RemoteKey:         "dnd/campaigns/sample-campaign/sessions/2026-05-03/current/manifest.json",
+					Reason:            "local file missing",
+				},
+			},
+			DownloadCount: 1,
+		}, nil
+	}
+
+	var stdout bytes.Buffer
+	var stderr bytes.Buffer
+	code := Execute(
+		[]string{
+			"restore",
+			"--config", pipelinePath,
+			"--session", sessionPath,
+			"--session-id", "2026-05-03",
+			"--dry-run",
+		},
+		&stdout,
+		&stderr,
+	)
+	if code != 0 {
+		t.Fatalf("exit code = %d, want 0; stderr=%q", code, stderr.String())
+	}
+	if !storeInitCalled {
+		t.Fatal("expected object store initialization to be called")
+	}
+}
+
+func TestExecuteRestoreNonDryRunConflictFailsBeforeNYI(t *testing.T) {
+	origStoreFn := newObjectStoreFromConfigFn
+	origDiscoverFn := discoverRemoteCurrentStateFn
+	origPlanFn := buildRestorePlanFn
+	origExecuteFn := executeRestorePlanFn
+	t.Cleanup(func() {
+		newObjectStoreFromConfigFn = origStoreFn
+		discoverRemoteCurrentStateFn = origDiscoverFn
+		buildRestorePlanFn = origPlanFn
+		executeRestorePlanFn = origExecuteFn
+	})
+	newObjectStoreFromConfigFn = func(context.Context, *config.Config) (storage.ObjectStore, error) {
+		return &storage.FakeBackend{}, nil
+	}
+	discoverRemoteCurrentStateFn = func(context.Context, *config.Config, storage.ObjectStore) (*RemoteCurrentState, error) {
+		return &RemoteCurrentState{
+			SessionID: "2026-05-03",
+			Campaign:  "sample-campaign",
+			RunID:     "20260519T010203Z-a1b2c3d4",
+		}, nil
+	}
+	buildRestorePlanFn = func(context.Context, *config.Config, *RemoteCurrentState, storage.ObjectStore, RestorePlanOptions) (*RestorePlan, error) {
+		return &RestorePlan{
+			Actions: []RestoreAction{
+				{Kind: RestoreActionConflict, LocalRelativePath: "transcripts/full.json", RemoteKey: "k", Reason: "local file differs"},
+			},
+			ConflictCount: 1,
+		}, nil
+	}
+
+	workspaceRoot := t.TempDir()
+	pipelinePath, sessionPath := writeValidConfigFiles(t, workspaceRoot)
+	var stdout bytes.Buffer
+	var stderr bytes.Buffer
+	code := Execute([]string{"restore", "--config", pipelinePath, "--session", sessionPath}, &stdout, &stderr)
+	if code == 0 {
+		t.Fatal("exit code = 0, want non-zero")
+	}
+	if stdout.Len() != 0 {
+		t.Fatalf("stdout = %q, want empty on conflict failure", stdout.String())
+	}
+	if !strings.Contains(stderr.String(), "restore conflict: 1 conflicting path(s); rerun with --force to overwrite") {
+		t.Fatalf("stderr = %q, want conflict failure", stderr.String())
+	}
+	if strings.Contains(stderr.String(), "phase 4: restore execution") {
+		t.Fatalf("stderr = %q, should fail before phase-4 NYI boundary", stderr.String())
+	}
+}
+
+func TestExecuteRestoreNonDryRunForceExecutesPlan(t *testing.T) {
+	origStoreFn := newObjectStoreFromConfigFn
+	origDiscoverFn := discoverRemoteCurrentStateFn
+	origPlanFn := buildRestorePlanFn
+	origExecuteFn := executeRestorePlanFn
+	t.Cleanup(func() {
+		newObjectStoreFromConfigFn = origStoreFn
+		discoverRemoteCurrentStateFn = origDiscoverFn
+		buildRestorePlanFn = origPlanFn
+		executeRestorePlanFn = origExecuteFn
+	})
+	newObjectStoreFromConfigFn = func(context.Context, *config.Config) (storage.ObjectStore, error) {
+		return &storage.FakeBackend{}, nil
+	}
+	discoverRemoteCurrentStateFn = func(context.Context, *config.Config, storage.ObjectStore) (*RemoteCurrentState, error) {
+		return &RemoteCurrentState{
+			SessionID: "2026-05-03",
+			Campaign:  "sample-campaign",
+			RunID:     "20260519T010203Z-a1b2c3d4",
+		}, nil
+	}
+	buildRestorePlanFn = func(context.Context, *config.Config, *RemoteCurrentState, storage.ObjectStore, RestorePlanOptions) (*RestorePlan, error) {
+		return &RestorePlan{
+			Actions: []RestoreAction{
+				{Kind: RestoreActionDownload, LocalRelativePath: "transcripts/full.json", RemoteKey: "k", Reason: "local file differs; overwrite with --force"},
+			},
+			DownloadCount: 1,
+		}, nil
+	}
+	executeRestorePlanFn = func(context.Context, *config.Config, *RemoteCurrentState, *RestorePlan, *RestoreReport, storage.ObjectStore) (*RestoreExecutionResult, error) {
+		return &RestoreExecutionResult{DownloadedCount: 1}, nil
+	}
+
+	workspaceRoot := t.TempDir()
+	pipelinePath, sessionPath := writeValidConfigFiles(t, workspaceRoot)
+	var stdout bytes.Buffer
+	var stderr bytes.Buffer
+	code := Execute([]string{"restore", "--config", pipelinePath, "--session", sessionPath, "--force"}, &stdout, &stderr)
+	if code != 0 {
+		t.Fatalf("exit code = %d, want 0; stderr=%q", code, stderr.String())
+	}
+	if !strings.Contains(stdout.String(), "Restored session archive for sample-campaign/2026-05-03") {
+		t.Fatalf("stdout = %q, want completion summary", stdout.String())
+	}
+	if stderr.Len() != 0 {
+		t.Fatalf("stderr = %q, want empty", stderr.String())
+	}
+}
+
+func writeRestoreConfigWithoutStorage(t *testing.T, workspaceRoot string) (string, string) {
+	t.Helper()
+
+	dir := t.TempDir()
+	pipelinePath := filepath.Join(dir, "pipeline.yml")
+	sessionPath := filepath.Join(dir, "session.yml")
+
+	pipelineYAML := `workspace:
+  root: ` + workspaceRoot + `
+whisperx:
+  transcribe_url: https://example.com/transcribe
+`
+	sessionYAML := `session_id: 2026-05-03
+campaign: sample-campaign
+inputs:
+  audio_dir: ./audio
+  speakers_file: ./speakers.yml
+  autocorrect_file: ./autocorrect.yml
+  glossary_file: ./glossary.yml
+`
+	if err := os.WriteFile(pipelinePath, []byte(pipelineYAML), 0o644); err != nil {
+		t.Fatalf("write pipeline config: %v", err)
+	}
+	if err := os.WriteFile(sessionPath, []byte(sessionYAML), 0o644); err != nil {
+		t.Fatalf("write session config: %v", err)
+	}
+	mustWriteTestFile(t, filepath.Join(dir, "speakers.yml"), "alice: alice.flac\n")
+	mustWriteTestFile(t, filepath.Join(dir, "autocorrect.yml"), "[]\n")
+	mustWriteTestFile(t, filepath.Join(dir, "glossary.yml"), "[]\n")
+	mustWriteTestFile(t, filepath.Join(dir, "audio", "alice.flac"), "audio-bytes")
+
+	return pipelinePath, sessionPath
+}

internal/app/restore_workflow_test.go

@@ -0,0 +1,178 @@
+package app
+
+import (
+	"bytes"
+	"context"
+	"os"
+	"path/filepath"
+	"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/artifacts"
+	"gitea.maximumdirect.net/eric/narratio/internal/config"
+	"gitea.maximumdirect.net/eric/narratio/internal/manifest"
+	"gitea.maximumdirect.net/eric/narratio/internal/stage"
+)
+
+func TestRestoreThenRunStageForceAnalyzeUsesRestoredDurableState(t *testing.T) {
+	workspaceRoot := t.TempDir()
+	pipelinePath, sessionPath := writeValidConfigFilesWithScriptoriumArtifacts(t, workspaceRoot)
+
+	fake := &storage.FakeBackend{}
+	cfg, sessionPrefix, manifestKey, runIDKey := seedRestoreCommittedState(t, fake, pipelinePath, sessionPath)
+	seedRestoreObject(fake, runIDKey, []byte("20260519T010203Z-a1b2c3d4\n"))
+	seedRestoreObject(fake, manifestKey, restoreWorkflowManifestJSON(t, cfg.Session.SessionID, cfg.Session.Campaign))
+	seedRestoreObject(fake, sessionPrefix+"transcripts/full.json", []byte(`{"segments":[1,2,3]}`+"\n"))
+	seedRestoreObject(fake, sessionPrefix+"artifacts/session_recap.md", []byte("# restored recap\n"))
+
+	restoreWithStoreAndRealPhases(t, fake)
+
+	origExecuteStagesFn := executeStagesFn
+	t.Cleanup(func() {
+		executeStagesFn = origExecuteStagesFn
+	})
+	executeStagesFn = func(ctx context.Context, cfg *config.Config, stages []stage.Stage, opts RunOptions) (*RunSummary, error) {
+		if opts.Env == nil {
+			opts.Env = &Env{}
+		}
+		opts.Env.Scriptorium = &scriptorium.NoopRunner{}
+		return executeStages(ctx, cfg, stages, opts)
+	}
+
+	var stdout bytes.Buffer
+	var stderr bytes.Buffer
+	restoreCode := Execute(
+		[]string{
+			"restore",
+			"--config", pipelinePath,
+			"--session", sessionPath,
+			"--session-id", cfg.Session.SessionID,
+		},
+		&stdout,
+		&stderr,
+	)
+	if restoreCode != 0 {
+		t.Fatalf("restore exit code = %d, want 0; stderr=%q", restoreCode, stderr.String())
+	}
+	if stderr.Len() != 0 {
+		t.Fatalf("restore stderr = %q, want empty", stderr.String())
+	}
+
+	sessionRoot := artifacts.SessionWorkDirForCampaign(workspaceRoot, cfg.Session.Campaign, cfg.Session.SessionID)
+	mustReadEquals(t, filepath.Join(sessionRoot, "transcripts", "full.json"), `{"segments":[1,2,3]}`+"\n")
+	mustReadEquals(t, filepath.Join(sessionRoot, "artifacts", "session_recap.md"), "# restored recap\n")
+
+	manifestStore := &manifest.LocalStore{}
+	sessionManifestPath := artifacts.SessionManifestPathForCampaign(workspaceRoot, cfg.Session.Campaign, cfg.Session.SessionID)
+	beforeAnalyze, err := manifestStore.Load(context.Background(), sessionManifestPath)
+	if err != nil {
+		t.Fatalf("load restored session manifest: %v", err)
+	}
+	upstreamCompletedAt := map[string]time.Time{}
+	for _, stageName := range []string{"prepare", "transcribe", "merge", "polish", "normalize", "trim"} {
+		rec := beforeAnalyze.Stages[stageName]
+		if rec == nil || rec.Status != manifest.StatusSucceeded || rec.CompletedAt == nil {
+			t.Fatalf("restored manifest stage %q = %#v, want succeeded with completion timestamp", stageName, rec)
+		}
+		upstreamCompletedAt[stageName] = *rec.CompletedAt
+	}
+
+	stdout.Reset()
+	stderr.Reset()
+	runStageCode := Execute(
+		[]string{
+			"run-stage",
+			"--config", pipelinePath,
+			"--session", sessionPath,
+			"--session-id", cfg.Session.SessionID,
+			"--force",
+			"--artifacts", "player_handout",
+			"analyze",
+		},
+		&stdout,
+		&stderr,
+	)
+	if runStageCode != 0 {
+		t.Fatalf("run-stage exit code = %d, want 0; stderr=%q", runStageCode, stderr.String())
+	}
+	if stderr.Len() != 0 {
+		t.Fatalf("run-stage stderr = %q, want empty", stderr.String())
+	}
+	if !strings.Contains(stdout.String(), "stage=analyze executed=1 skipped=0 force=true") {
+		t.Fatalf("run-stage stdout = %q, want analyze execution summary", stdout.String())
+	}
+
+	playerHandoutPath := filepath.Join(sessionRoot, "artifacts", "player_handout.md")
+	if _, err := os.Stat(playerHandoutPath); err != nil {
+		t.Fatalf("restored analyze output %q missing: %v", playerHandoutPath, err)
+	}
+
+	afterAnalyze, err := manifestStore.Load(context.Background(), sessionManifestPath)
+	if err != nil {
+		t.Fatalf("load session manifest after run-stage analyze: %v", err)
+	}
+	for _, stageName := range []string{"prepare", "transcribe", "merge", "polish", "normalize", "trim"} {
+		rec := afterAnalyze.Stages[stageName]
+		if rec == nil || rec.Status != manifest.StatusSucceeded || rec.CompletedAt == nil {
+			t.Fatalf("post-analyze manifest stage %q = %#v, want succeeded with completion timestamp", stageName, rec)
+		}
+		if !rec.CompletedAt.Equal(upstreamCompletedAt[stageName]) {
+			t.Fatalf(
+				"stage %q completion changed: before=%s after=%s",
+				stageName,
+				upstreamCompletedAt[stageName].Format(time.RFC3339Nano),
+				rec.CompletedAt.Format(time.RFC3339Nano),
+			)
+		}
+	}
+	analyzeRec := afterAnalyze.Stages["analyze"]
+	if analyzeRec == nil || analyzeRec.Status != manifest.StatusSucceeded {
+		t.Fatalf("post-analyze stage record = %#v, want succeeded", analyzeRec)
+	}
+
+	runManifestPaths, err := filepath.Glob(filepath.Join(sessionRoot, "runs", "*", "manifest.json"))
+	if err != nil {
+		t.Fatalf("glob run manifests: %v", err)
+	}
+	if len(runManifestPaths) != 1 {
+		t.Fatalf("run manifest count = %d, want 1; paths=%v", len(runManifestPaths), runManifestPaths)
+	}
+	runManifest, err := manifestStore.LoadRun(context.Background(), runManifestPaths[0])
+	if err != nil {
+		t.Fatalf("load run manifest %q: %v", runManifestPaths[0], err)
+	}
+	if len(runManifest.RequestedStages) != 1 || runManifest.RequestedStages[0] != "analyze" {
+		t.Fatalf("run manifest requested_stages = %#v, want [analyze]", runManifest.RequestedStages)
+	}
+	if runManifest.Stages["analyze"] == nil || runManifest.Stages["analyze"].Status != manifest.StatusSucceeded {
+		t.Fatalf("run manifest analyze stage = %#v, want succeeded", runManifest.Stages["analyze"])
+	}
+	if runManifest.Stages["prepare"] != nil {
+		t.Fatalf("run manifest should not include upstream prepare stage, got %#v", runManifest.Stages["prepare"])
+	}
+}
+
+func restoreWorkflowManifestJSON(t *testing.T, sessionID, campaign string) []byte {
+	t.Helper()
+	store := &manifest.LocalStore{}
+	now := time.Date(2026, 5, 19, 23, 0, 0, 0, time.UTC)
+	m := manifest.New(sessionID, now)
+	m.Campaign = campaign
+	m.RunID = "20260519T010203Z-a1b2c3d4"
+	stages := []string{"prepare", "transcribe", "merge", "polish", "normalize", "trim"}
+	for i, stageName := range stages {
+		m.MarkStageSucceeded(stageName, now.Add(time.Duration(i+1)*time.Minute), nil)
+	}
+	path := filepath.Join(t.TempDir(), "manifest.json")
+	if err := store.Save(context.Background(), path, m); err != nil {
+		t.Fatalf("save workflow manifest fixture: %v", err)
+	}
+	data, err := os.ReadFile(path)
+	if err != nil {
+		t.Fatalf("read workflow manifest fixture: %v", err)
+	}
+	return data
+}

internal/app/resume.go

@@ -76,7 +76,7 @@ func Resume(ctx context.Context, args []string, out io.Writer) error {
 		}
 	}
 
-	summary, err := executeStages(ctx, cfg, selected, RunOptions{
+	summary, err := executeStagesFn(ctx, cfg, selected, RunOptions{
 		Force:             force,
 		SelectedArtifacts: normalizedArtifacts,
 	})

internal/app/run.go

@@ -58,7 +58,7 @@ func Run(ctx context.Context, args []string, out io.Writer) error {
 	}
 
 	stages := BuildFullPlan()
-	summary, err := executeStages(ctx, cfg, stages, RunOptions{
+	summary, err := executeStagesFn(ctx, cfg, stages, RunOptions{
 		Force:             force,
 		SelectedArtifacts: normalizedArtifacts,
 	})

internal/app/run_stage.go

@@ -66,7 +66,7 @@ func RunStage(ctx context.Context, args []string, out io.Writer) error {
 		return fmt.Errorf("run-stage: %w", err)
 	}
 
-	summary, err := executeStages(ctx, cfg, stages, RunOptions{
+	summary, err := executeStagesFn(ctx, cfg, stages, RunOptions{
 		Force:             force,
 		SelectedArtifacts: normalizedArtifacts,
 	})

internal/app/runner.go

@@ -36,6 +36,8 @@ type RunSummary struct {
 	Skipped         []string
 }
 
+var executeStagesFn = executeStages
+
 func executeStages(ctx context.Context, cfg *config.Config, stages []stage.Stage, opts RunOptions) (*RunSummary, error) {
 	env := opts.Env
 	if env == nil {

internal/app/runner_test.go

@@ -209,7 +209,14 @@ func TestExecuteStagesArchiveFailsWhenRequiredRecapPromotionMissingForSelectedAr
 		Enabled:   boolPtr(true),
 		UploadRun: boolPtr(true),
 		PromoteArtifacts: []config.ArchivePromotionRule{
-			{From: "artifacts/session_recap.md", To: "artifacts/session_recap.md", Required: boolPtr(true)},
+			{Source: "narratio.artifact.session_recap", Dest: "artifacts/session_recap.md", Required: boolPtr(true)},
+		},
+	}
+	cfg.Pipeline.Scriptorium = &config.ScriptoriumConfig{
+		Artifacts: map[string]config.ScriptoriumArtifactConfig{
+			"session_recap": {
+				OutputPath: "artifacts/session_recap.md",
+			},
 		},
 	}
 
@@ -247,8 +254,8 @@ func TestExecuteStagesArchiveFailsWhenRequiredRecapPromotionMissingForSelectedAr
 	if err == nil {
 		t.Fatal("expected archive promotion failure, got nil")
 	}
-	if !strings.Contains(err.Error(), "required promotion source missing") {
+	if !strings.Contains(err.Error(), "required promotion source unavailable") {
-		t.Fatalf("error = %q, want required promotion source missing", err.Error())
+		t.Fatalf("error = %q, want required promotion source unavailable", err.Error())
 	}
 }
 

internal/artifacts/archive_identity.go

@@ -0,0 +1,77 @@
+package artifacts
+
+import (
+	"fmt"
+	"strings"
+
+	"gitea.maximumdirect.net/eric/narratio/internal/config"
+	"gitea.maximumdirect.net/eric/narratio/internal/manifest"
+)
+
+// ResolveArchiveBucket resolves archive bucket identity with manifest-first precedence.
+func ResolveArchiveBucket(cfg *config.Config, m *manifest.Manifest) string {
+	if m != nil && strings.TrimSpace(m.S3Bucket) != "" {
+		return strings.TrimSpace(m.S3Bucket)
+	}
+	if cfg == nil || cfg.Pipeline == nil || cfg.Pipeline.Storage.S3 == nil {
+		return ""
+	}
+	return strings.TrimSpace(cfg.Pipeline.Storage.S3.Bucket)
+}
+
+// ResolveArchiveSessionPrefix resolves archive session prefix with manifest-first precedence.
+func ResolveArchiveSessionPrefix(cfg *config.Config, m *manifest.Manifest) (string, error) {
+	if m != nil && strings.TrimSpace(m.S3SessionPrefix) != "" {
+		return strings.TrimSpace(m.S3SessionPrefix), nil
+	}
+	if cfg == nil || cfg.Session == nil || cfg.Pipeline == nil {
+		return "", fmt.Errorf("resolved config is required")
+	}
+
+	sessionID := strings.TrimSpace(cfg.Session.SessionID)
+	if sessionID == "" && m != nil {
+		sessionID = strings.TrimSpace(m.SessionID)
+	}
+	campaign := strings.TrimSpace(cfg.Session.Campaign)
+	if campaign == "" && m != nil {
+		campaign = strings.TrimSpace(m.Campaign)
+	}
+	if cfg.Pipeline.Storage.S3 == nil {
+		return "", fmt.Errorf("pipeline.storage.s3 configuration is required")
+	}
+
+	sessionPrefix := S3SessionPrefix(cfg.Pipeline.Storage.S3.RootPrefix, campaign, sessionID)
+	if strings.TrimSpace(sessionPrefix) == "" {
+		return "", fmt.Errorf("session prefix is required")
+	}
+	return sessionPrefix, nil
+}
+
+// ResolveArchiveRunPrefix resolves archive run prefix with manifest-first precedence.
+func ResolveArchiveRunPrefix(cfg *config.Config, m *manifest.Manifest) (string, error) {
+	if m != nil {
+		runPrefix := strings.TrimSpace(m.S3RunPrefix)
+		if runPrefix != "" {
+			return runPrefix, nil
+		}
+	}
+
+	sessionPrefix, err := ResolveArchiveSessionPrefix(cfg, m)
+	if err != nil {
+		return "", err
+	}
+
+	runID := ""
+	if m != nil {
+		runID = strings.TrimSpace(m.RunID)
+	}
+	if runID == "" {
+		return "", fmt.Errorf("run id is required")
+	}
+	return S3RunPrefix(sessionPrefix, runID), nil
+}
+
+// ResolveArchiveCurrentStateKeys returns current pointer keys for a session prefix.
+func ResolveArchiveCurrentStateKeys(sessionPrefix string) (manifestKey, runIDKey string) {
+	return S3CurrentManifestKey(sessionPrefix), S3CurrentRunPointerKey(sessionPrefix)
+}

internal/artifacts/archive_identity_test.go

@@ -0,0 +1,130 @@
+package artifacts
+
+import (
+	"strings"
+	"testing"
+
+	"gitea.maximumdirect.net/eric/narratio/internal/config"
+	"gitea.maximumdirect.net/eric/narratio/internal/manifest"
+)
+
+func TestResolveArchiveBucketPrefersManifestThenConfig(t *testing.T) {
+	cfg := &config.Config{
+		Pipeline: &config.PipelineConfig{
+			Storage: config.StorageConfig{
+				S3: &config.StorageS3Config{Bucket: "cfg-bucket"},
+			},
+		},
+	}
+
+	if got := ResolveArchiveBucket(cfg, &manifest.Manifest{S3Bucket: "manifest-bucket"}); got != "manifest-bucket" {
+		t.Fatalf("bucket = %q, want manifest-bucket", got)
+	}
+	if got := ResolveArchiveBucket(cfg, &manifest.Manifest{}); got != "cfg-bucket" {
+		t.Fatalf("bucket = %q, want cfg-bucket", got)
+	}
+}
+
+func TestResolveArchiveSessionPrefixPrefersManifestThenConfig(t *testing.T) {
+	cfg := &config.Config{
+		Pipeline: &config.PipelineConfig{
+			Storage: config.StorageConfig{
+				S3: &config.StorageS3Config{RootPrefix: "dnd"},
+			},
+		},
+		Session: &config.SessionConfig{
+			SessionID: "2026-04-19",
+			Campaign:  "forsaken",
+		},
+	}
+	m := &manifest.Manifest{S3SessionPrefix: "manifest/session/prefix/"}
+
+	got, err := ResolveArchiveSessionPrefix(cfg, m)
+	if err != nil {
+		t.Fatalf("ResolveArchiveSessionPrefix() error = %v", err)
+	}
+	if got != "manifest/session/prefix/" {
+		t.Fatalf("session prefix = %q, want manifest/session/prefix/", got)
+	}
+
+	got, err = ResolveArchiveSessionPrefix(cfg, &manifest.Manifest{})
+	if err != nil {
+		t.Fatalf("ResolveArchiveSessionPrefix() error = %v", err)
+	}
+	want := "dnd/campaigns/forsaken/sessions/2026-04-19/"
+	if got != want {
+		t.Fatalf("session prefix = %q, want %q", got, want)
+	}
+}
+
+func TestResolveArchiveRunPrefixPrefersManifestThenDerived(t *testing.T) {
+	cfg := &config.Config{
+		Pipeline: &config.PipelineConfig{
+			Storage: config.StorageConfig{
+				S3: &config.StorageS3Config{RootPrefix: "dnd"},
+			},
+		},
+		Session: &config.SessionConfig{
+			SessionID: "2026-04-19",
+			Campaign:  "forsaken",
+		},
+	}
+
+	m := &manifest.Manifest{
+		RunID:       "20260516T010203Z-1a2b3c4d",
+		S3RunPrefix: "manifest/run/prefix/",
+	}
+	got, err := ResolveArchiveRunPrefix(cfg, m)
+	if err != nil {
+		t.Fatalf("ResolveArchiveRunPrefix() error = %v", err)
+	}
+	if got != "manifest/run/prefix/" {
+		t.Fatalf("run prefix = %q, want manifest/run/prefix/", got)
+	}
+
+	m = &manifest.Manifest{
+		RunID: "20260516T010203Z-1a2b3c4d",
+	}
+	got, err = ResolveArchiveRunPrefix(cfg, m)
+	if err != nil {
+		t.Fatalf("ResolveArchiveRunPrefix() error = %v", err)
+	}
+	want := "dnd/campaigns/forsaken/sessions/2026-04-19/runs/20260516T010203Z-1a2b3c4d/"
+	if got != want {
+		t.Fatalf("run prefix = %q, want %q", got, want)
+	}
+}
+
+func TestResolveArchiveIdentityErrorsAreDeterministic(t *testing.T) {
+	cfgNoS3 := &config.Config{
+		Pipeline: &config.PipelineConfig{},
+		Session:  &config.SessionConfig{SessionID: "2026-04-19", Campaign: "forsaken"},
+	}
+	_, err := ResolveArchiveSessionPrefix(cfgNoS3, &manifest.Manifest{})
+	if err == nil || !strings.Contains(err.Error(), "pipeline.storage.s3 configuration is required") {
+		t.Fatalf("error = %v, want missing storage.s3", err)
+	}
+
+	cfg := &config.Config{
+		Pipeline: &config.PipelineConfig{
+			Storage: config.StorageConfig{
+				S3: &config.StorageS3Config{RootPrefix: "dnd"},
+			},
+		},
+		Session: &config.SessionConfig{SessionID: "2026-04-19", Campaign: "forsaken"},
+	}
+	_, err = ResolveArchiveRunPrefix(cfg, &manifest.Manifest{})
+	if err == nil || !strings.Contains(err.Error(), "run id is required") {
+		t.Fatalf("error = %v, want missing run id", err)
+	}
+}
+
+func TestResolveArchiveCurrentStateKeys(t *testing.T) {
+	manifestKey, runIDKey := ResolveArchiveCurrentStateKeys("dnd/campaigns/forsaken/sessions/2026-04-19/")
+	if manifestKey != "dnd/campaigns/forsaken/sessions/2026-04-19/current/manifest.json" {
+		t.Fatalf("manifest key = %q", manifestKey)
+	}
+	if runIDKey != "dnd/campaigns/forsaken/sessions/2026-04-19/current/run_id.txt" {
+		t.Fatalf("run id key = %q", runIDKey)
+	}
+}

internal/config/config.go

@@ -79,8 +79,8 @@ type ArchiveConfig struct {
 
 // ArchivePromotionRule configures one artifact promotion mapping.
 type ArchivePromotionRule struct {
-	From     string `yaml:"from"`
+	Source   string `yaml:"source"`
-	To       string `yaml:"to"`
+	Dest     string `yaml:"dest"`
 	Required *bool  `yaml:"required"`
 }
 

internal/config/defaults.go

@@ -74,8 +74,7 @@ const (
 // DefaultArchivePromoteArtifacts defines the default archive promotion rules.
 // Callers should copy this slice before mutating.
 var DefaultArchivePromoteArtifacts = []ArchivePromotionRule{
-	{From: PathTranscriptTrimmed, To: PathTranscriptTrimmed},
+	{Source: "narratio.transcript.trimmed", Dest: PathTranscriptTrimmed},
-	{From: "artifacts/session_recap.md", To: "artifacts/session_recap.md"},
 }
 
 // DefaultPipelineConfigSearchPaths defines the default search order for

internal/config/storage_archive_test.go

@@ -136,40 +136,86 @@ func TestSpoolAndArchiveDefaults(t *testing.T) {
 	if cfg.Pipeline.Archive.UploadRun == nil || !*cfg.Pipeline.Archive.UploadRun {
 		t.Fatalf("archive.upload_run = %#v, want true", cfg.Pipeline.Archive.UploadRun)
 	}
-	if len(cfg.Pipeline.Archive.PromoteArtifacts) != 2 {
+	if len(cfg.Pipeline.Archive.PromoteArtifacts) != 1 {
-		t.Fatalf("archive.promote_artifacts len = %d, want 2 defaults", len(cfg.Pipeline.Archive.PromoteArtifacts))
+		t.Fatalf("archive.promote_artifacts len = %d, want 1 default", len(cfg.Pipeline.Archive.PromoteArtifacts))
 	}
-	for i, item := range cfg.Pipeline.Archive.PromoteArtifacts {
+	item := cfg.Pipeline.Archive.PromoteArtifacts[0]
 	if item.Required == nil || !*item.Required {
-			t.Fatalf("archive.promote_artifacts[%d].required = %#v, want true", i, item.Required)
+		t.Fatalf("archive.promote_artifacts[0].required = %#v, want true", item.Required)
 	}
+	if item.Source != "narratio.transcript.trimmed" {
+		t.Fatalf("archive.promote_artifacts[0].source = %q, want narratio.transcript.trimmed", item.Source)
+	}
+	if item.Dest != "transcripts/trimmed.json" {
+		t.Fatalf("archive.promote_artifacts[0].dest = %q, want transcripts/trimmed.json", item.Dest)
 	}
 }
 
-func TestArchivePromotionPathValidation(t *testing.T) {
+func TestArchivePromotionValidation(t *testing.T) {
 	tests := []struct {
 		name    string
 		ruleYML string
 		wantErr string
 	}{
 		{
-			name: "absolute from path rejected",
+			name: "absolute dest path rejected",
 			ruleYML: `archive:
   promote_artifacts:
-    - from: "/transcripts/trimmed.json"
+    - source: "narratio.transcript.trimmed"
-      to: "transcripts/trimmed.json"
+      dest: "/transcripts/trimmed.json"
 `,
 			wantErr: "must be a relative path",
 		},
 		{
-			name: "traversal to path rejected",
+			name: "traversal dest path rejected",
 			ruleYML: `archive:
   promote_artifacts:
-    - from: "transcripts/trimmed.json"
+    - source: "narratio.transcript.trimmed"
-      to: "../trimmed.json"
+      dest: "../trimmed.json"
 `,
 			wantErr: "must not contain path traversal",
 		},
+		{
+			name: "invalid source rejected",
+			ruleYML: `archive:
+  promote_artifacts:
+    - source: "narratio.unknown"
+      dest: "transcripts/trimmed.json"
+`,
+			wantErr: "source \"narratio.unknown\" is unsupported",
+		},
+		{
+			name: "duplicate destination rejected",
+			ruleYML: `archive:
+  promote_artifacts:
+    - source: "narratio.transcript.trimmed"
+      dest: "artifacts/shared.md"
+    - source: "narratio.transcript.full"
+      dest: "artifacts/shared.md"
+`,
+			wantErr: "duplicates another archive promotion destination",
+		},
+		{
+			name: "configured source requires configured artifact key",
+			ruleYML: `archive:
+  promote_artifacts:
+    - source: "narratio.artifact.session_recap"
+      dest: "artifacts/session_recap.md"
+`,
+			wantErr: "configured artifact \"session_recap\" is not defined in pipeline.scriptorium.artifacts",
+		},
+		{
+			name: "configured source without output path fails when dest omitted",
+			ruleYML: `scriptorium:
+  artifacts:
+    session_recap:
+      enabled: false
+archive:
+  promote_artifacts:
+    - source: "narratio.artifact.session_recap"
+`,
+			wantErr: "destination cannot be derived",
+		},
 	}
 
 	for _, tt := range tests {
@@ -189,6 +235,72 @@ func TestArchivePromotionPathValidation(t *testing.T) {
 	}
 }
 
+func TestArchivePromotionDerivesDestinationWhenOmitted(t *testing.T) {
+	tests := []struct {
+		name        string
+		pipelineYML string
+		wantDest    string
+	}{
+		{
+			name: "built in source derives canonical destination",
+			pipelineYML: testPipelineBaseYAML + `
+archive:
+  promote_artifacts:
+    - source: narratio.transcript.full
+`,
+			wantDest: "transcripts/normalized.json",
+		},
+		{
+			name: "configured source derives configured output path",
+			pipelineYML: testPipelineBaseYAML + `
+scriptorium:
+  artifacts:
+    session_recap:
+      enabled: true
+      prompt_id: dnd.session_recap
+      output_path: artifacts/session_recap.md
+archive:
+  promote_artifacts:
+    - source: narratio.artifact.session_recap
+`,
+			wantDest: "artifacts/session_recap.md",
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			pipelinePath, sessionPath := writeConfigFiles(t, tt.pipelineYML, testSessionBaseYAML)
+			cfg, err := Load(pipelinePath, sessionPath)
+			if err != nil {
+				t.Fatalf("Load() error = %v", err)
+			}
+			if err := Validate(cfg); err != nil {
+				t.Fatalf("Validate() error = %v", err)
+			}
+			if len(cfg.Pipeline.Archive.PromoteArtifacts) != 1 {
+				t.Fatalf("archive.promote_artifacts len = %d, want 1", len(cfg.Pipeline.Archive.PromoteArtifacts))
+			}
+			if cfg.Pipeline.Archive.PromoteArtifacts[0].Dest != tt.wantDest {
+				t.Fatalf("archive.promote_artifacts[0].dest = %q, want %q", cfg.Pipeline.Archive.PromoteArtifacts[0].Dest, tt.wantDest)
+			}
+		})
+	}
+}
+
+func TestArchiveLegacyFromToFailsStrictDecode(t *testing.T) {
+	pipelineYAML := testPipelineBaseYAML + `
+archive:
+  promote_artifacts:
+    - from: transcripts/trimmed.json
+      to: transcripts/trimmed.json
+`
+	pipelinePath, sessionPath := writeConfigFiles(t, pipelineYAML, testSessionBaseYAML)
+	_, err := Load(pipelinePath, sessionPath)
+	if err == nil || !strings.Contains(err.Error(), "strict decode failed") {
+		t.Fatalf("Load() error = %v, want strict decode failed", err)
+	}
+}
+
 func TestSessionAudioS3Validation(t *testing.T) {
 	tests := []struct {
 		name        string

internal/config/validate.go

@@ -47,7 +47,7 @@ func validatePipeline(cfg *PipelineConfig) error {
 	if err := validateSpool(cfg.Spool); err != nil {
 		return err
 	}
-	if err := validateArchive(cfg.Archive); err != nil {
+	if err := validateArchive(cfg.Archive, cfg.Scriptorium); err != nil {
 		return err
 	}
 	if err := validateWhisperX(cfg.WhisperX); err != nil {
@@ -104,28 +104,91 @@ func validateSpool(cfg SpoolConfig) error {
 	return nil
 }
 
-func validateArchive(cfg *ArchiveConfig) error {
+func validateArchive(cfg *ArchiveConfig, scriptorium *ScriptoriumConfig) error {
 	if cfg == nil {
 		return nil
 	}
+	seenDest := map[string]struct{}{}
 	for i, item := range cfg.PromoteArtifacts {
 		prefix := fmt.Sprintf("pipeline.archive.promote_artifacts[%d]", i)
-		if strings.TrimSpace(item.From) == "" {
+		source := strings.TrimSpace(item.Source)
-			return fmt.Errorf("%s.from is required", prefix)
+		if source == "" {
+			return fmt.Errorf("%s.source is required", prefix)
 		}
-		if strings.TrimSpace(item.To) == "" {
+		if _, err := archiveSourceKnown(source, scriptorium); err != nil {
-			return fmt.Errorf("%s.to is required", prefix)
+			return fmt.Errorf("%s.source %q is unsupported: %w", prefix, item.Source, err)
 		}
-		if err := validateRelativeSafePath(prefix+".from", item.From); err != nil {
+		dest := strings.TrimSpace(item.Dest)
+		if dest == "" {
+			derivedDest, err := deriveArchivePromotionDest(source, scriptorium)
+			if err != nil {
+				return fmt.Errorf("%s.dest is required when destination cannot be derived from %q: %w", prefix, source, err)
+			}
+			dest = derivedDest
+			cfg.PromoteArtifacts[i].Dest = derivedDest
+		}
+		if err := validateRelativeSafePath(prefix+".dest", dest); err != nil {
 			return err
 		}
-		if err := validateRelativeSafePath(prefix+".to", item.To); err != nil {
+		normalizedDest := filepath.ToSlash(filepath.Clean(dest))
-			return err
+		if _, ok := seenDest[normalizedDest]; ok {
+			return fmt.Errorf("%s.dest %q duplicates another archive promotion destination", prefix, dest)
 		}
+		seenDest[normalizedDest] = struct{}{}
 	}
 	return nil
 }
 
+func archiveSourceKnown(source string, scriptorium *ScriptoriumConfig) (string, error) {
+	trimmed := strings.TrimSpace(source)
+	switch trimmed {
+	case "narratio.transcript.merged",
+		"narratio.transcript.polished",
+		"narratio.transcript.full",
+		"narratio.transcript.trimmed",
+		"narratio.bounds.session":
+		return "", nil
+	}
+	matches := narratioArtifactSourceRE.FindStringSubmatch(trimmed)
+	if len(matches) != 2 {
+		return "", fmt.Errorf("must be a built-in source id or narratio.artifact.<name>")
+	}
+	artifactKey := matches[1]
+	if scriptorium == nil || len(scriptorium.Artifacts) == 0 {
+		return "", fmt.Errorf("configured artifact %q is not defined in pipeline.scriptorium.artifacts", artifactKey)
+	}
+	if _, ok := scriptorium.Artifacts[artifactKey]; !ok {
+		return "", fmt.Errorf("configured artifact %q is not defined in pipeline.scriptorium.artifacts", artifactKey)
+	}
+	return artifactKey, nil
+}
+
+func deriveArchivePromotionDest(source string, scriptorium *ScriptoriumConfig) (string, error) {
+	trimmed := strings.TrimSpace(source)
+	switch trimmed {
+	case "narratio.transcript.merged":
+		return PathTranscriptMerged, nil
+	case "narratio.transcript.polished":
+		return PathTranscriptProcessed, nil
+	case "narratio.transcript.full":
+		return PathTranscriptNormalized, nil
+	case "narratio.transcript.trimmed":
+		return PathTranscriptTrimmed, nil
+	case "narratio.bounds.session":
+		return filepath.ToSlash(filepath.Join(PathArtifactsDirSegment, "session_bounds.json")), nil
+	}
+	artifactKey, err := archiveSourceKnown(trimmed, scriptorium)
+	if err != nil {
+		return "", err
+	}
+	artifactCfg := scriptorium.Artifacts[artifactKey]
+	outputPath := strings.TrimSpace(artifactCfg.OutputPath)
+	if outputPath == "" {
+		return "", fmt.Errorf("pipeline.scriptorium.artifacts.%s.output_path is empty", artifactKey)
+	}
+	return outputPath, nil
+}
+
 func validateSecrets(cfg *SecretsConfig) error {
 	if cfg == nil {
 		return nil

internal/stage/archive.go

@@ -3,6 +3,7 @@ package stage
 import (
 	"context"
 	"encoding/json"
+	"errors"
 	"fmt"
 	"io/fs"
 	"os"
@@ -90,15 +91,15 @@ func (archiveStage) Run(ctx context.Context, env *Env, m *manifest.Manifest) (*S
 		return nil, fmt.Errorf("archive: run root %q is not a directory", runRoot)
 	}
 
-	runPrefix, err := archiveRunPrefix(env, m)
+	runPrefix, err := artifacts.ResolveArchiveRunPrefix(env.Config, m)
 	if err != nil {
 		return nil, fmt.Errorf("archive: resolve s3 run prefix: %w", err)
 	}
-	sessionPrefix, err := archiveSessionPrefix(env, m)
+	sessionPrefix, err := artifacts.ResolveArchiveSessionPrefix(env.Config, m)
 	if err != nil {
 		return nil, fmt.Errorf("archive: resolve s3 session prefix: %w", err)
 	}
-	bucket := archiveBucket(env, m)
+	bucket := artifacts.ResolveArchiveBucket(env.Config, m)
 	if bucket == "" {
 		return nil, fmt.Errorf("archive: resolve s3 bucket: bucket is required")
 	}
@@ -116,11 +117,12 @@ func (archiveStage) Run(ctx context.Context, env *Env, m *manifest.Manifest) (*S
 	if err != nil {
 		return nil, fmt.Errorf("archive: collect run files: %w", err)
 	}
-	sessionRoot, err := resolveArchiveSessionRoot(env, m)
+	sessionPaths := archiveSessionPaths(env, m)
+	runtimeCatalog, err := buildArchiveRuntimeArtifactCatalog(sessionPaths, env.Config.Pipeline.Scriptorium)
 	if err != nil {
-		return nil, fmt.Errorf("archive: resolve session root for promotions: %w", err)
+		return nil, fmt.Errorf("archive: build runtime artifact catalog: %w", err)
 	}
-	promotions, err := resolveArchivePromotions(sessionRoot, env.Config.Pipeline.Archive.PromoteArtifacts)
+	promotions, skippedOptional, err := resolveArchivePromotions(sessionPaths, m, runtimeCatalog, env.Config.Pipeline.Archive.PromoteArtifacts)
 	if err != nil {
 		return nil, fmt.Errorf("archive: resolve promotion rules: %w", err)
 	}
@@ -134,23 +136,15 @@ func (archiveStage) Run(ctx context.Context, env *Env, m *manifest.Manifest) (*S
 	}
 
 	promotedUploaded := make([]string, 0, len(promotions))
-	skippedOptional := make([]string, 0)
 	for _, promotion := range promotions {
-		if !promotion.Exists {
+		key := artifacts.S3PromotedArtifactKey(sessionPrefix, promotion.Dest)
-			if promotion.Required {
-				return nil, fmt.Errorf("archive: required promotion source missing: %q", promotion.From)
-			}
-			skippedOptional = append(skippedOptional, promotion.To)
-			continue
-		}
-		key := artifacts.S3PromotedArtifactKey(sessionPrefix, promotion.To)
 		if _, err := env.ObjectStore.Upload(ctx, promotion.LocalPath, key, storage.UploadOptions{}); err != nil {
-			return nil, fmt.Errorf("archive: upload promoted output %q to %q: %w", promotion.From, key, err)
+			return nil, fmt.Errorf("archive: upload promoted output source %q to %q: %w", promotion.Source, key, err)
 		}
-		promotedUploaded = append(promotedUploaded, promotion.To)
+		promotedUploaded = append(promotedUploaded, promotion.Dest)
 	}
 
-	currentManifestKey := artifacts.S3CurrentManifestKey(sessionPrefix)
+	currentManifestKey, currentRunPointerKey := artifacts.ResolveArchiveCurrentStateKeys(sessionPrefix)
 	manifestTempPath, err := writeCurrentManifestSnapshot(m, archiveMetadataPreview(
 		bucket,
 		runPrefix,
@@ -171,7 +165,6 @@ func (archiveStage) Run(ctx context.Context, env *Env, m *manifest.Manifest) (*S
 		return nil, fmt.Errorf("archive: upload current manifest to %q: %w", currentManifestKey, err)
 	}
 
-	currentRunPointerKey := artifacts.S3CurrentRunPointerKey(sessionPrefix)
 	runIDTempPath, err := writeCurrentRunIDPointer(runID)
 	if err != nil {
 		return nil, fmt.Errorf("archive: build current run id pointer: %w", err)
@@ -204,11 +197,11 @@ func (archiveStage) Run(ctx context.Context, env *Env, m *manifest.Manifest) (*S
 }
 
 type archivePromotion struct {
-	From      string
+	Source     string
-	To        string
+	Dest       string
 	Required   bool
 	LocalPath  string
-	Exists    bool
+	Provenance string
 }
 
 func archiveDisabled(env *Env) bool {
@@ -292,105 +285,151 @@ func resolveArchiveSessionRoot(env *Env, m *manifest.Manifest) (string, error) {
 	return filepath.Clean(artifacts.SessionWorkDirForCampaign(env.Config.Pipeline.Workspace.Root, campaign, sessionID)), nil
 }
 
-func archiveRunPrefix(env *Env, m *manifest.Manifest) (string, error) {
+func archiveSessionPaths(env *Env, m *manifest.Manifest) artifacts.SessionPaths {
-	runPrefix := strings.TrimSpace(m.S3RunPrefix)
-	if runPrefix != "" {
-		return runPrefix, nil
-	}
-
-	sessionPrefix, err := archiveSessionPrefix(env, m)
-	if err != nil {
-		return "", err
-	}
-	runID := strings.TrimSpace(m.RunID)
-	if runID == "" {
-		return "", fmt.Errorf("run id is required")
-	}
-	return artifacts.S3RunPrefix(sessionPrefix, runID), nil
-}
-
-func archiveSessionPrefix(env *Env, m *manifest.Manifest) (string, error) {
-	if m != nil && strings.TrimSpace(m.S3SessionPrefix) != "" {
-		return strings.TrimSpace(m.S3SessionPrefix), nil
-	}
-
 	sessionID := strings.TrimSpace(env.Config.Session.SessionID)
-	if sessionID == "" {
+	if sessionID == "" && m != nil {
 		sessionID = strings.TrimSpace(m.SessionID)
 	}
 	campaign := strings.TrimSpace(env.Config.Session.Campaign)
-	if campaign == "" {
+	if campaign == "" && m != nil {
 		campaign = strings.TrimSpace(m.Campaign)
 	}
-	if env.Config.Pipeline.Storage.S3 == nil {
+	store := artifacts.NewLocalStore(env.Config.Pipeline.Workspace.Root)
-		return "", fmt.Errorf("pipeline.storage.s3 configuration is required")
+	return store.SessionPathsFor(campaign, sessionID)
-	}
-	sessionPrefix := artifacts.S3SessionPrefix(env.Config.Pipeline.Storage.S3.RootPrefix, campaign, sessionID)
-	if strings.TrimSpace(sessionPrefix) == "" {
-		return "", fmt.Errorf("session prefix is required")
-	}
-	return sessionPrefix, nil
 }
 
-func archiveBucket(env *Env, m *manifest.Manifest) string {
+func resolveArchivePromotions(
-	if m != nil && strings.TrimSpace(m.S3Bucket) != "" {
+	paths artifacts.SessionPaths,
-		return strings.TrimSpace(m.S3Bucket)
+	m *manifest.Manifest,
-	}
+	catalog *artifacts.ArtifactCatalog,
-	if env == nil || env.Config == nil || env.Config.Pipeline == nil || env.Config.Pipeline.Storage.S3 == nil {
+	rules []config.ArchivePromotionRule,
-		return ""
+) ([]archivePromotion, []string, error) {
-	}
-	return strings.TrimSpace(env.Config.Pipeline.Storage.S3.Bucket)
-}
-
-func resolveArchivePromotions(sessionRoot string, rules []config.ArchivePromotionRule) ([]archivePromotion, error) {
-	sessionRoot = filepath.Clean(strings.TrimSpace(sessionRoot))
-	if sessionRoot == "" {
-		return nil, fmt.Errorf("session root is required")
-	}
 	out := make([]archivePromotion, 0, len(rules))
+	skippedOptional := make([]string, 0)
 	for _, rule := range rules {
-		from := strings.TrimSpace(rule.From)
+		source := strings.TrimSpace(rule.Source)
-		to := strings.TrimSpace(rule.To)
 		required := rule.Required == nil || *rule.Required
-
+		dest, err := resolveArchivePromotionDest(rule, catalog)
-		resolvedPath, err := resolveWorkDirRelativePath(sessionRoot, from)
 		if err != nil {
-			return nil, fmt.Errorf("promotion from %q: %w", from, err)
+			return nil, nil, fmt.Errorf("source %q: %w", source, err)
 		}
-		info, err := os.Stat(resolvedPath)
+		resolved, err := artifacts.ResolveSessionArtifactWithCatalog(paths, m, source, catalog)
-		exists := err == nil && !info.IsDir()
+		if err != nil {
-		if err != nil && !os.IsNotExist(err) {
+			if errors.Is(err, artifacts.ErrSessionArtifactNotFound) && !required {
-			return nil, fmt.Errorf("promotion source %q: %w", from, err)
+				skippedOptional = append(skippedOptional, dest)
+				continue
+			}
+			if errors.Is(err, artifacts.ErrSessionArtifactNotFound) {
+				return nil, nil, fmt.Errorf("required promotion source unavailable: %q", source)
+			}
+			return nil, nil, fmt.Errorf("resolve source %q: %w", source, err)
 		}
-		localPath := resolvedPath
-
 		out = append(out, archivePromotion{
-			From:      from,
+			Source:     source,
-			To:        to,
+			Dest:       dest,
 			Required:   required,
-			LocalPath: localPath,
+			LocalPath:  resolved.Path,
-			Exists:    exists,
+			Provenance: resolved.Provenance,
 		})
 	}
-	return out, nil
+	return out, skippedOptional, nil
 }
 
-func resolveWorkDirRelativePath(workDir, rel string) (string, error) {
+func resolveArchivePromotionDest(rule config.ArchivePromotionRule, catalog *artifacts.ArtifactCatalog) (string, error) {
-	rel = filepath.Clean(filepath.FromSlash(strings.TrimSpace(rel)))
+	dest := strings.TrimSpace(rule.Dest)
-	if rel == "." || rel == "" {
+	if dest == "" {
+		entry, ok := catalog.Lookup(strings.TrimSpace(rule.Source))
+		if !ok {
+			return "", fmt.Errorf("destination omitted and source is unknown")
+		}
+		dest = strings.TrimSpace(entry.CanonicalRelPath)
+		if dest == "" {
+			return "", fmt.Errorf("destination omitted and no canonical destination is available")
+		}
+	}
+	return normalizeArchiveRelativePath(dest)
+}
+
+func normalizeArchiveRelativePath(rel string) (string, error) {
+	trimmed := strings.TrimSpace(rel)
+	if trimmed == "" {
 		return "", fmt.Errorf("relative path is required")
 	}
-	full := filepath.Join(workDir, rel)
+	cleaned := filepath.ToSlash(filepath.Clean(filepath.FromSlash(trimmed)))
-	cleanedWork := filepath.Clean(workDir)
+	if cleaned == "." || cleaned == "" {
-	cleanedFull := filepath.Clean(full)
+		return "", fmt.Errorf("relative path is required")
-	relative, err := filepath.Rel(cleanedWork, cleanedFull)
+	}
+	if filepath.IsAbs(trimmed) || strings.HasPrefix(cleaned, "/") || cleaned == ".." || strings.HasPrefix(cleaned, "../") {
+		return "", fmt.Errorf("path must be a clean relative path")
+	}
+	return cleaned, nil
+}
+
+func buildArchiveRuntimeArtifactCatalog(
+	paths artifacts.SessionPaths,
+	scriptoriumCfg *config.ScriptoriumConfig,
+) (*artifacts.ArtifactCatalog, error) {
+	catalog := artifacts.NewArtifactCatalog()
+	if err := catalog.RegisterBuiltIns(); err != nil {
+		return nil, err
+	}
+	if scriptoriumCfg == nil {
+		return catalog, nil
+	}
+
+	configured := map[string]artifacts.ConfiguredArtifactDefinition{}
+	for key, artifactCfg := range scriptoriumCfg.Artifacts {
+		configured[key] = artifacts.ConfiguredArtifactDefinition{
+			Enabled:    artifactCfg.Enabled,
+			OutputPath: artifactCfg.OutputPath,
+		}
+	}
+	if err := catalog.RegisterConfiguredArtifacts(configured, nil); err != nil {
+		return nil, err
+	}
+
+	for _, entry := range catalog.ListConfigured() {
+		if strings.TrimSpace(entry.CanonicalRelPath) == "" {
+			continue
+		}
+		localPath, err := resolveConfiguredArtifactLocalPath(paths, entry.CanonicalRelPath)
 		if err != nil {
-		return "", fmt.Errorf("compute relative path: %w", err)
+			continue
 		}
-	if relative == ".." || strings.HasPrefix(relative, ".."+string(filepath.Separator)) {
+		info, statErr := os.Stat(localPath)
-		return "", fmt.Errorf("path escapes workdir")
+		if statErr != nil {
+			if os.IsNotExist(statErr) {
+				continue
 			}
-	return cleanedFull, nil
+			return nil, fmt.Errorf("stat configured artifact %q: %w", entry.SourceID, statErr)
+		}
+		if info.IsDir() {
+			continue
+		}
+		if err := catalog.MarkAvailableFromDisk(entry.SourceID, localPath); err != nil {
+			return nil, err
+		}
+	}
+
+	return catalog, nil
+}
+
+func resolveConfiguredArtifactLocalPath(paths artifacts.SessionPaths, configured string) (string, error) {
+	outputPath := strings.TrimSpace(configured)
+	if outputPath == "" {
+		return "", fmt.Errorf("configured artifact output path is required")
+	}
+	if filepath.IsAbs(outputPath) {
+		return filepath.Clean(outputPath), nil
+	}
+	rel := filepath.Clean(outputPath)
+	if rel == "." || rel == "" {
+		return "", fmt.Errorf("relative output path is required")
+	}
+	if rel == ".." || strings.HasPrefix(rel, ".."+string(filepath.Separator)) {
+		return "", fmt.Errorf("relative output path escapes session root: %q", configured)
+	}
+	return filepath.Join(paths.Root, rel), nil
 }
 
 func collectArchiveRunFiles(runRoot, manifestPath string) ([]archiveUploadFile, error) {

internal/stage/archive_test.go

@@ -135,8 +135,8 @@ func TestArchiveUploadsRunRecordPromotionsAndCurrentPointer(t *testing.T) {
 func TestArchiveUsesCustomPromotionRules(t *testing.T) {
 	env, m, _ := archiveFixture(t)
 	env.Config.Pipeline.Archive.PromoteArtifacts = []config.ArchivePromotionRule{
-		{From: "transcripts/trimmed.json", To: "published/trimmed.json", Required: boolPtr(true)},
+		{Source: "narratio.transcript.trimmed", Dest: "published/trimmed.json", Required: boolPtr(true)},
-		{From: "artifacts/session_recap.md", To: "published/recap.md", Required: boolPtr(true)},
+		{Source: "narratio.artifact.session_recap", Dest: "published/recap.md", Required: boolPtr(true)},
 	}
 
 	_, err := archiveStage{}.Run(context.Background(), env, m)
@@ -156,8 +156,8 @@ func TestArchiveUsesCustomPromotionRules(t *testing.T) {
 func TestArchiveSkipsOptionalMissingPromotion(t *testing.T) {
 	env, m, _ := archiveFixture(t)
 	env.Config.Pipeline.Archive.PromoteArtifacts = []config.ArchivePromotionRule{
-		{From: "transcripts/trimmed.json", To: "transcripts/trimmed.json", Required: boolPtr(true)},
+		{Source: "narratio.transcript.trimmed", Dest: "transcripts/trimmed.json", Required: boolPtr(true)},
-		{From: "artifacts/optional.md", To: "artifacts/optional.md", Required: boolPtr(false)},
+		{Source: "narratio.transcript.merged", Dest: "transcripts/merged.json", Required: boolPtr(false)},
 	}
 
 	result, err := archiveStage{}.Run(context.Background(), env, m)
@@ -165,7 +165,7 @@ func TestArchiveSkipsOptionalMissingPromotion(t *testing.T) {
 		t.Fatalf("Run() error = %v", err)
 	}
 	got, _ := result.Metadata["skipped_optional_promotions"].([]string)
-	want := []string{"artifacts/optional.md"}
+	want := []string{"transcripts/merged.json"}
 	if !reflect.DeepEqual(got, want) {
 		t.Fatalf("skipped_optional_promotions = %#v, want %#v", got, want)
 	}
@@ -174,12 +174,12 @@ func TestArchiveSkipsOptionalMissingPromotion(t *testing.T) {
 func TestArchiveFailsWhenRequiredPromotionMissing(t *testing.T) {
 	env, m, _ := archiveFixture(t)
 	env.Config.Pipeline.Archive.PromoteArtifacts = []config.ArchivePromotionRule{
-		{From: "artifacts/missing.md", To: "artifacts/missing.md", Required: boolPtr(true)},
+		{Source: "narratio.transcript.merged", Dest: "transcripts/merged.json", Required: boolPtr(true)},
 	}
 
 	_, err := archiveStage{}.Run(context.Background(), env, m)
-	if err == nil || !strings.Contains(err.Error(), "required promotion source missing") {
+	if err == nil || !strings.Contains(err.Error(), "required promotion source unavailable") {
-		t.Fatalf("Run() error = %v, want required promotion missing failure", err)
+		t.Fatalf("Run() error = %v, want required promotion source unavailable failure", err)
 	}
 }
 
@@ -259,13 +259,13 @@ func archiveFixture(t *testing.T) (*Env, *manifest.Manifest, string) {
 	sessionRoot := artifacts.SessionWorkDirForCampaign(root, campaign, sessionID)
 	runRoot := artifacts.SessionRunRootForCampaign(root, campaign, sessionID, runID)
 
-	writeStageTestFile(t, filepath.Join(sessionRoot, "transcripts", "trimmed.json"), "{}\n")
+	writeStageTestFile(t, filepath.Join(sessionRoot, "transcripts", "trimmed.json"), "{\"segments\":[]}\n")
 	writeStageTestFile(t, filepath.Join(sessionRoot, "artifacts", "session_recap.md"), "# recap\n")
 
 	writeStageTestFile(t, filepath.Join(runRoot, "prepare", "inputs", "session.yml"), "session_id: 2026-04-19\n")
 	writeStageTestFile(t, filepath.Join(runRoot, "prepare", "outputs", "audio", "speaker.flac"), "flac\n")
 	writeStageTestFile(t, filepath.Join(runRoot, "transcribe", "outputs", "transcripts", "raw", "speaker.json"), "{}\n")
-	writeStageTestFile(t, filepath.Join(runRoot, "trim", "outputs", "transcripts", "trimmed.json"), "{}\n")
+	writeStageTestFile(t, filepath.Join(runRoot, "trim", "outputs", "transcripts", "trimmed.json"), "{\"segments\":[]}\n")
 	writeStageTestFile(t, filepath.Join(runRoot, "analyze", "outputs", "artifacts", "session_recap.md"), "# recap\n")
 	writeStageTestFile(t, filepath.Join(runRoot, "polish", "reports", "audita.report.json"), "{}\n")
 	writeStageTestFile(t, filepath.Join(runRoot, "merge", "config", "seriatim.generated.yml"), "key: value\n")
@@ -298,8 +298,17 @@ func archiveFixture(t *testing.T) (*Env, *manifest.Manifest, string) {
 					Enabled:   boolPtr(true),
 					UploadRun: boolPtr(true),
 					PromoteArtifacts: []config.ArchivePromotionRule{
-						{From: "transcripts/trimmed.json", To: "transcripts/trimmed.json", Required: boolPtr(true)},
+						{Source: "narratio.transcript.trimmed", Dest: "transcripts/trimmed.json", Required: boolPtr(true)},
-						{From: "artifacts/session_recap.md", To: "artifacts/session_recap.md", Required: boolPtr(true)},
+						{Source: "narratio.artifact.session_recap", Dest: "artifacts/session_recap.md", Required: boolPtr(true)},
+					},
+				},
+				Scriptorium: &config.ScriptoriumConfig{
+					Artifacts: map[string]config.ScriptoriumArtifactConfig{
+						"session_recap": {
+							Enabled:    true,
+							PromptID:   "dnd.session_recap",
+							OutputPath: "artifacts/session_recap.md",
+						},
 					},
 				},
 			},