narratio/docs/troubleshooting.md

# Troubleshooting

Operational diagnosis guide for common Narratio failures.

## Config file not found

Symptom:

- command fails to resolve `pipeline.yml`, `campaign.yml`, or `session.yml`.

Likely causes:

- missing files in default search paths;
- wrong campaign selection;
- omitted explicit flags.

Diagnostics:

```bash
narratio session plan 2026-04-04
```

Safe fix:

- pass explicit `--config`, `--campaign` or `--campaign-file`, and `--session`.

Relevant reference: [Configuration discovery](./config.md#discovery-and-selection).

## Session template placeholders rejected

Symptom:

- load error says session file must be concrete or contains `{{ ... }}` placeholders.

Likely cause:

- using template content as runtime session config.

Diagnostics:

```bash
narratio session validate 2026-04-04 --session /path/session.yml
```

Safe fix:

- generate concrete session YAML with `narratio session init`.

Relevant reference: [Operations: Session Initialization](./operations.md#session-initialization).

## Strict decode or schema validation failure

Symptom:

- unknown field / invalid value error during config load.

Likely cause:

- stale field name, typo, invalid enum, invalid duration/path format, or an
  unsupported local manifest schema/state marker.

Diagnostics:

```bash
narratio session plan 2026-04-04 --config /path/pipeline.yml --campaign-file /path/campaign.yml --session /path/session.yml
```

Safe fix:

- align config with [Configuration](./config.md) and the
  [maintained examples](../examples/README.md).
- for a manifest schema error, move the unsupported local state aside and
  regenerate it; restore a verified current committed snapshot or republish
  healthy regenerated state when appropriate. Do not add version or stage
  markers by hand.
- if an older manifest is rejected for its retired cleanup-obligation field,
  finish outstanding cleanup with the pre-upgrade binary. Otherwise verify the
  remote commit, move aside or regenerate the incompatible manifest, and use
  the cleanup stage. Do not treat manual JSON editing as the normal migration
  path.

Relevant reference: [Configuration](./config.md).

## Party schema version rejected

Symptom:

- configuration loading reports that `party.schema_version` is required or
  unsupported.

Likely cause:

- the campaign `party.yml` is an unversioned legacy document, or names a
  schema other than `narratio.party.v1`.

Safe fix:

- replace the file with one exact, single-document
  [`narratio.party.v1` party](./integrations/party.md); do not add a version
  marker to an otherwise incompatible legacy structure. The versioned party is
  the only configured roster authority.

Relevant reference: [Canonical Party Input](./integrations/party.md).

## Unexpected imported or overlay value

Symptom:

- an effective configuration value differs from the root file, or a duplicate
  ownership/configuration error is hard to locate.

Diagnostics:

```bash
narratio config sources --config /path/pipeline.yml --overlay testing
```

Add `--campaign` or `--campaign-file` when the pipeline has party-driven
artifact families. The output identifies each effective logical field's root,
import, overlay, default, campaign, party, or family source without printing
the field value or credential contents.

Safe fix:

- move a duplicated base field so it has one owner;
- correct the selected overlay; or
- correct the campaign party/family declaration that owns generated values.

To review what would actually change before switching overlays, run `config
diff` with the same pipeline and campaign selectors. It compares normalized
effective values rather than YAML formatting or source-file layout.

Relevant reference: [Configuration inspection](./config.md#read-only-effective-pipeline-inspection).

## Audio mode conflict

Symptom:

- validation fails on session audio configuration.

Likely cause:

- configured both local and S3 session audio inputs.

Diagnostics:

```bash
narratio session validate 2026-04-04
```

Safe fix:

- use local mode (`audio_dir` or `audio_files`) or S3 mode (`audio_s3.prefix`), not both.

Relevant reference: [Session configuration](./config.md#session).

## `--artifacts` selection error

Symptom:

- unknown artifact key or invalid `--artifacts` usage.

Likely causes:

- key not defined in `pipeline.scriptorium.artifacts`;
- empty list entry (for example trailing comma);
- `run-stage` used with non-`analyze`/`publish` target.

Diagnostics:

```bash
narratio session artifacts 2026-04-04
```

Safe fix:

- provide only configured keys and use `--artifacts` with supported commands/stages.

Relevant reference: [CLI artifact selection](./cli.md).

## Bounded run prerequisite is unusable

Symptom:

- `run` or `session plan` reports that a prerequisite stage is absent or has a
  pending, running, failed, stale, or interrupted status before the selected
  start.

Likely cause:

- `--from` excludes upstream work that has not reached the terminal
  `succeeded` or `skipped` state in the session manifest.

Diagnostics:

```bash
narratio session status 2026-04-04
narratio session plan 2026-04-04 --from render --through analyze
```

Safe fix:

- widen the bounded range to include the first reported stage, or recover that
  stage explicitly with `run-stage` before retrying. The failed check does not
  create a run-local directory or modify the manifest. Narratio does not
  resume-validate excluded prefix stages, and stages after `--through` are not
  prerequisites.

If prerequisite statuses are terminal but a selected stage reports a missing,
unsafe, or checksum-inconsistent artifact, repair the artifact at the stage
that owns it; do not edit the manifest to bypass the selected stage's concrete
input validation.

Relevant reference: [Operations: Stage Execution and Continuation Behavior](./operations.md#stage-execution-and-continuation-behavior).

## Transcription retries speakers that previously finished

Symptom:

- an ordinary transcribe retry calls WhisperX for a speaker that appeared to
  finish earlier; or
- an older successful session retranscribes all speakers once after upgrade.

Likely causes:

- the earlier response or canonical file was not followed by a successful
  speaker manifest checkpoint;
- the prepared audio bytes/path, WhisperX URL, or language changed;
- the canonical transcript is missing, unsafe, non-regular, invalid JSON, or
  no longer matches its recorded size/checksum;
- the previous invocation used `--force`, which durably cleared pre-force
  speaker authority; or
- the manifest has only legacy aggregate transcribe state and cannot bind old
  outputs to their source audio.

Safe fix:

- inspect the reported speaker and filesystem error, repair the prepared input
  or canonical-output path when needed, then retry transcribe normally;
- allow a legacy aggregate-only record to regenerate once; and
- do not edit the manifest or copy an old JSON file into place as a substitute
  for a successful checkpoint.

```bash
narratio run-stage transcribe 2026-04-04
```

Valid earlier speaker checkpoints remain reusable even while aggregate
transcribe status is failed or interrupted. Merge remains gated until
transcribe reaches aggregate success with the complete current set.

Relevant reference: [Operations: Transcription continuation and replacement](./operations.md#transcription-continuation-and-replacement).

## WhisperX model changed but transcription was reused

Symptom:

- WhisperX model weights, prompts, or private server configuration changed at
  the same configured URL, but Narratio still considers speaker transcripts
  current.

Likely cause:

- Narratio can fingerprint its configured URL and language, not private state
  loaded behind the service boundary.

Safe fix:

- explicitly force transcribe to establish a durable reset, then use ordinary
  retry if the replacement attempt is interrupted.

```bash
narratio run-stage transcribe 2026-04-04 --force
```

Transport replay and application retries do not provide an exactly-once remote
execution guarantee. Investigate server-side failures or duplicate work using
WhisperX diagnostics; do not infer completion from a server log without the
local speaker checkpoint.

Relevant references: [WhisperX integration](./integrations/whisperx.md) and
[Transcribe internals](./internal/stage-transcribe.md).

## Transcription manifest checkpoint failed

Symptom:

- transcribe reports that a speaker completed but the session manifest could
  not be saved.

Likely causes:

- the workspace is unwritable or out of space;
- the manifest path or parent directory is unsafe or the wrong type; or
- a transient filesystem error interrupted atomic replacement.

Safe fix:

- correct the reported filesystem or permission problem and retry transcribe
  normally. Narratio reconciles from the last readable collection and reuses
  only successfully checkpointed speakers.

A canonical raw transcript left by the failed checkpoint is incidental and
does not become reusable authority. Preserve the manifest and diagnostics if
the failure repeats; do not advertise the file by editing manifest evidence.

Relevant references: [Manifest persistence](./internal/manifest.md#persistence-semantics)
and [Transcribe internals](./internal/stage-transcribe.md).

## Notarius credential reference unavailable

Symptom:

- configuration loading reports `secret.unset`, `secret.empty`, or an invalid
  name in `pipeline.notarius.credentials`, including during inspection or a
  run that would not execute extraction.

Likely causes:

- the named environment variable is absent or empty;
- the selected secrets directory lacks a file with that exact name;
- a process environment variable exists but is empty, so bootstrap correctly
  leaves it in place; or
- the Narratio reference name does not match `api_key_env` in the selected
  Notarius/PromptKit profile.

Safe fix:

- set the exact nonempty environment variable or provide an equivalently named
  file through the conventional or explicit secrets directory;
- remove or set the field to `null` when that deployment needs no credential;
  and
- use `config show`, `config sources`, and `config diff` to inspect the public
  reference name and ownership without exposing its value.

Narratio resolves selected credential references during ordinary pipeline
loading, before stage selection or resume. Credential changes alone do not
invalidate a completed extraction, but the current reference must still resolve
for the command to proceed.

Relevant references: [Secrets](./config.md#secrets-handling) and
[Notarius credential](./config.md#notarius-credential).

## Notarius executable missing

Symptom:

- extraction fails while resolving or starting the Notarius executable.

Likely causes:

- `pipeline.notarius.binary` is not installed, executable, or on `PATH`;
- a configured executable path is wrong.

Safe fix:

- install a compatible Notarius release or correct the binary setting, then
  rerun extraction.

Relevant references: [Notarius configuration](./config.md#notarius-output-entries)
and [Notarius integration](./integrations/notarius.md).

## Notarius exits nonzero

Symptom:

- extraction reports a Notarius exit error instead of a receipt.

Diagnostics:

- inspect `runs/{run_id}/extract/notarius.stderr.log`; stdout is reserved for
  the receipt and is not merged with diagnostics.

Safe fix:

- correct the reported Notarius pipeline, input, provider, or configuration
  failure and rerun extraction. Do not edit a staged output bundle into place.

After a failed replacement, an older immutable bundle may still exist even
though the current session manifest has no successful extraction payload. This
is expected audit state, not a signal to relink the old bundle manually.

Relevant reference: [Operations: Extraction Workflow](./operations.md#extraction-workflow).

## Prepared Notarius reference missing or inconsistent

Symptom:

- extraction or resume validation reports that a configured reference source is
  unavailable, unsafe, empty, or checksum-inconsistent and recommends
  `prepare --force`.

Likely causes:

- `prepare` has not run since the campaign/session stable input changed;
- the configured source file is missing;
- a prepared `inputs/` file or its manifest record was modified independently;
- a spell-catalog binding exists without an effective `spell_catalog_file`.

Diagnostics:

```bash
narratio session status 2026-04-04
narratio session validate 2026-04-04
```

Safe fix:

- correct the campaign/session input path, then refresh canonical prepared
  evidence before extraction:

```bash
narratio run-stage prepare 2026-04-04 --force
```

Do not point Notarius directly at the original source path or edit the manifest
checksum. Relevant references: [Notarius reference configuration](./config.md#notarius-reference-bindings)
and [Operations: Extraction Workflow](./operations.md#extraction-workflow).

## Notarius reference snapshot cache conflict

Symptom:

- extraction reports that a path beneath
  `cache/notarius/references/<sha256>/` is a symlink, directory, or another
  non-regular or unsafe entry.

Safe fix:

- stop commands for the affected session and inspect the exact reported path;
- investigate unexpected links or special files as possible tampering; and
- remove only the reported conflicting leaf or digest directory after
  confirming it belongs to the reconstructible reference cache.

A missing snapshot or corrupt regular snapshot is reconstructed automatically
from currently verified prepared input. Do not recursively delete the session
root, edit the manifest checksum, or remove cache entries while extraction is
active.

Relevant reference: [Operations: Extraction Workflow](./operations.md#extraction-workflow).

## Notarius resume executes work instead of reusing it

Symptom:

- Narratio executes `extract`, and Notarius makes provider calls despite
  `pipeline.notarius.resume: true`.

Likely causes:

- checkpoint recording is disabled in the Notarius configuration;
- Notarius is using a nonpersistent or different checkpoint root;
- transcript/reference bytes, reference paths, pipeline/profile content,
  local-backend endpoint, selected lanes, or another checkpoint identity input
  changed; or
- Narratio extraction was forced, which deliberately omits `--resume`.

Safe fix:

- validate the deployed Notarius configuration and configure explicit
  persistent chunk-plan and checkpoint roots;
- inspect Notarius checkpoint decision reason codes for a legitimate cold miss;
  and
- retry without force only when reuse is intended.

Remember that Narratio skipping a completed `extract` stage is separate from
Notarius reusing work inside an extraction that does execute. Narratio does not
read the Notarius configuration to infer checkpoint enablement.

Relevant references: [Notarius cache controls](./config.md#notarius-cache-controls)
and [Notarius integration](./integrations/notarius.md).

## Notarius reference selector or generated-handoff collision

Symptom:

- Notarius exits nonzero with an undeclared reference-slot, incompatible media,
  or external/generated reference collision error.

Likely causes:

- a selector does not identify a slot declared by the selected Notarius target;
- a prepared file does not satisfy that slot's Notarius media contract; or
- a CLI binding attempts to replace a same-run generated D&D handoff.

Safe fix:

- compare external bindings with the selected Notarius pipeline's canonical
  consumer documentation;
- keep only campaign-owned external slots on the CLI; and
- leave registry, scene, combat, and occurrence handoffs to Notarius pipeline
  composition.

Narratio validates selector structure and prepared evidence, while Notarius
owns slot declarations, media compatibility, and generated-handoff conflicts.
Relevant reference: [Notarius integration](./integrations/notarius.md).

## Notarius receipt or index incompatible

Symptom:

- extraction rejects the receipt schema, pipeline identity, bundle/index path,
  lane descriptor, or payload path even though Notarius exited successfully.

Likely causes:

- Narratio and Notarius versions disagree on their consumer contract;
- the configured pipeline or lane constraints are stale;
- output paths escape the bundle or traverse symlinks.

Safe fix:

- compare installed Notarius output with the canonical Notarius contracts,
  including receipt `index_file: index.json` and index management names
  `manifest.json`, `rejected.json`, `warnings.json`, and `diagnostics.json`; align
  `pipeline.notarius` constraints and rerun. Do not bypass confinement or schema
  checks.

Relevant reference: [Notarius integration](./integrations/notarius.md).

## Required Notarius lane rejected or missing

Symptom:

- extraction fails because a configured lane is rejected, missing, duplicated,
  or incompatible, including after a zero exit.

Safe fix:

- inspect the Notarius diagnostic log and bundle rejection/warning information;
- correct the Notarius module or the exact declared lane contract;
- remove an output declaration only if downstream consumers genuinely no longer
  require that source, then rerun extraction.

Every configured output is required. Narratio does not promote a partial result.

## Extraction resume invalidated

Symptom:

- a previously successful extraction runs again during ordinary continuation.

Likely causes:

- the pipeline ID or configured output contracts changed;
- a configured prepared reference selector, source, path, checksum, or byte
  size changed;
- the direct trimmed transcript identity or bytes changed; or
- the durable bundle, index, lane set, provenance, regular-file status, or
  checksum no longer validates.

Safe fix:

- allow the automatic rerun after verifying the current configuration. Treat
  an unsafe path or bundle symlink error as filesystem corruption or tampering
  and investigate it rather than replacing files manually.

Executable, config path, timeout, working directory, and Notarius credential
changes are operational and do not by themselves invalidate reusable extraction
evidence. A newly selected credential must nevertheless resolve during command
configuration loading.

## Notarius transitive configuration changed

Symptom:

- Notarius profiles, prompts, modules, imported files, or references changed,
  but Narratio still considers the previous extraction resumable.

Safe fix:

```bash
narratio run-stage extract 2026-04-04 --force
```

Narratio fingerprints its invocation contract and prepared Narratio reference
identities, not the contents of other transitive Notarius inputs. Always force
extraction after changing those external inputs; downstream
successful stages are then marked stale normally.

Relevant reference: [Operations: Extraction Workflow](./operations.md#extraction-workflow).

## Analysis artifact evidence is not current

Symptom:

- ordinary continuation or `session plan` schedules one or more configured
  artifacts even though a canonical output file exists; or
- publish reports a configured artifact source unavailable.

Likely causes:

- the per-artifact record is stale, missing, failed, unselected, or malformed;
- a configured prompt/profile, dependency, input identity, output path, or
  effective variable changed; or
- the recorded output is missing, unsafe, empty, or has a size/checksum that no
  longer matches its manifest evidence.

Diagnostics:

```bash
narratio session status 2026-04-04
narratio session artifacts 2026-04-04
narratio session plan 2026-04-04 --from analyze --through analyze
```

Safe fix:

- investigate unexpected path or checksum changes as possible tampering;
- otherwise let the selected analyze work rerun, or explicitly regenerate only
  the affected targets; and
- never edit the fingerprint/checksum in the manifest or copy an old file into
  the canonical path as a substitute for current evidence.

```bash
narratio analyze 2026-04-04 --artifacts session_recap
```

Relevant references: [Operations: Artifact Selection](./operations.md#artifact-selection)
and [Artifact Internals](./internal/artifacts.md#resolution-rules).

## Analysis manifest checkpoint failed

Symptom:

- analyze reports that it could not save the session manifest after completing
  an artifact.

Likely causes:

- the workspace is unwritable or out of space;
- the manifest path or its parent directory has unsafe permissions or type; or
- a transient local filesystem error interrupted atomic manifest replacement.

Safe fix:

- correct the reported filesystem or permission problem;
- inspect `session artifacts` to identify the last durable current records; and
- rerun analyze normally. Narratio reuses earlier successful checkpoints and
  retries the failed or non-current artifact and its required dependents.

Do not treat a newly created canonical artifact file as current when its
checkpoint failed, and do not edit the manifest to advertise it. If the error
recurs, preserve the manifest and run-local diagnostics before repairing the
workspace.

Relevant references: [Operations: Stage Execution and Continuation Behavior](./operations.md#stage-execution-and-continuation-behavior)
and [Manifest Internals](./internal/manifest.md#persistence-semantics).

## Built-in transcript or bounds source is unavailable

Symptom:

- analyze, extract, render, or publish says a built-in source is unavailable
  even though a file exists at its usual session path.

Likely cause:

- the producing stage has not succeeded, its output lacks the exact registered
  source, run ID, or checksum, its evidence is duplicated or stale, or the
  durable bytes no longer match the manifest checksum.

Safe fix:

- do not copy or rename the file to make it discoverable. Rerun the producing
  stage to regenerate both the bytes and current manifest evidence, then retry
  the consumer.

## An older manifest schema is rejected

Symptom:

- Narratio rejects a local session manifest because `schema_version` is missing
  or unsupported; or
- restore rejects a committed remote session manifest for the same reason.

Likely causes:

- the manifest predates the supported canonical state contract. Narratio
  rejects it at the schema boundary rather than interpreting aggregate output
  lists or incidental files as current authority; or
- an older strict-decoding Narratio binary is reading a current manifest that
  contains additive transcribe speaker state it does not recognize.

Safe fix:

- for unsupported local state, move the old manifest aside and regenerate, or
  restore a verified current committed snapshot when one is authoritative;
- for unsupported committed remote state, regenerate healthy local state as
  needed and republish the session; and
- for a downgrade rejection, return to the current binary or restore a verified
  pre-upgrade backup. Do not delete only the speaker fields by hand.

```bash
narratio run 2026-04-04
narratio publish 2026-04-04
```

After current records exist, inspect them and publish explicitly. Do not copy
old files into canonical paths merely to influence selection; availability is
manifest-owned.

Relevant references: [Operations: Stage Execution and Continuation Behavior](./operations.md#stage-execution-and-continuation-behavior)
and [Manifest Internals](./internal/manifest.md#transcribe-owned-speaker-state).

## Scriptorium private input changed without a rerun

Symptom:

- a prompt, profile, imported configuration file, executable, or other input
  loaded privately by Scriptorium changed, but Narratio still considers an
  artifact current.

Likely cause:

- analysis fingerprints cover Narratio-observable semantic identities, not
  executable contents or arbitrary files and transitive configuration that
  Scriptorium loads behind its configured paths and identifiers.

Safe fix:

- explicitly force the affected target after changing an unobserved private
  input. Force applies to explicit targets; current prerequisites remain
  reusable unless selected themselves.

```bash
narratio analyze 2026-04-04 --artifacts session_recap
```

Relevant reference: [Analyze Internals](./internal/stage-analyze.md#invariants).

## Previous-session artifact input missing

Symptom:

- prepare/analyze fails due to missing required previous-session artifact cache input.

Likely causes:

- missing `session.previous_session_id`;
- the selected previous-session commit does not declare the required canonical
  source as a `published_output`; or
- the declared published object is unavailable or fails identity validation.

Diagnostics:

```bash
narratio session validate 2026-04-04
narratio session status 2026-04-04
```

Safe fix:

```bash
narratio session restore 2026-04-04
```

or rerun prepare after correcting session config:

```bash
narratio run-stage prepare 2026-04-04 --force
```

Relevant reference: [Operations: Restore Workflow](./operations.md#restore-workflow).

## Session lock conflict (`.lock`)

Symptom:

- command fails acquiring session lock.

Likely causes:

- another process is running for the same session;
- a process still holds the operating-system lock while it is shutting down.

Diagnostics:

```bash
ls -l {workspace.root}/work/{campaign}/{session_id}/.lock
ps aux | grep narratio
```

Safe fix:

- wait for active process completion;
- retry after an interrupted holder has exited; the kernel releases its lock
  even though the `.lock` metadata file remains for inspection.

Relevant reference: [Operations: Local State Layout](./operations.md#local-state-layout).

## Restore conflict without `--force`

Symptom:

- restore fails with conflict count.

Likely cause:

- local durable files differ from remote restore sources.
- a restore target or one of its ancestors is a symlink or another non-regular
  filesystem entry.

Diagnostics:

```bash
narratio session restore 2026-04-04 --dry-run
```

Safe fix:

- review conflicts;
- rerun with `--force` only when remote state should overwrite an eligible
  regular local file; repair a symlink or other non-regular conflict first.

If the filesystem changed after the plan was printed, rerun restore after
repairing the destination; installation performs the same safety check again.

Relevant reference: [Operations: Restore Workflow](./operations.md#restore-workflow).

## Restore current-state discovery failure

Symptom:

- restore cannot find current pointer or current manifest.

Likely causes:

- no committed publish current state;
- storage credentials or connectivity failure.

Diagnostics:

```bash
narratio session status 2026-04-04
narratio session restore 2026-04-04 --dry-run
```

Safe fix:

- resolve storage/auth issue;
- republish from healthy local state if current pointer is missing.

Relevant reference: [Operations: Publish Workflow](./operations.md#publish-workflow).

## Publish output failure

Symptom:

- publish fails on missing required source, upload error, or commit write.

Likely causes:

- required source file not produced;
- lock/state expectations mismatch;
- remote storage failure.

Diagnostics:

```bash
narratio session artifacts 2026-04-04 --remote
narratio session status 2026-04-04
narratio run-stage publish 2026-04-04 --force
```

Safe fix:

- regenerate missing sources by rerunning prerequisite stages;
- correct publish source/destination rules;
- retry after storage failure is resolved.

Relevant reference: [Publish configuration](./config.md#publish-configuration-summary).

## Render markdown source missing

Symptom:

- analyze or publish fails because `narratio.transcript.final_markdown` or `narratio.transcript.final_trimmed_markdown` is unavailable.

Likely causes:

- render stage was not executed after transcript changes;
- render stage failed before producing canonical markdown outputs.

Diagnostics:

```bash
narratio session status 2026-04-04
```

Safe fix:

- rerun render and then retry downstream stage(s):

```bash
narratio run-stage render 2026-04-04 --force
narratio run-stage analyze 2026-04-04 --force
```

Relevant reference: [Operations: Stage Execution](./operations.md#stage-execution-and-continuation-behavior).

## Secrets or storage credential failure

Symptom:

- object-store command fails at initialization/auth.

Likely causes:

- missing, unreadable, or invalid explicit `--secrets-dir`;
- invalid entries in the conventional `secrets/` directory beside the root pipeline;
- missing credential environment variables;
- invalid S3 endpoint/bucket settings.

Diagnostics:

```bash
ls -la /path/to/secrets_dir
env | sed 's/=.*//' | grep -E 'OBJECT_STORAGE|AWS|AUDITA|NOTARIUS|SCRIPTORIUM'
```

Safe fix:

- correct `--secrets-dir`, secret-file type/name, and operator-managed permissions;
- provide required env vars;
- keep secret values out of YAML.

Relevant reference: [Secrets](./config.md#secrets-handling).

## S3 audio prepare failure

Symptom:

- prepare fails listing/downloading session S3 audio.

Likely causes:

- incorrect `session.inputs.audio_s3.prefix`;
- no matching `.flac` objects;
- storage connectivity or permissions failure.

Diagnostics:

```bash
narratio session validate 2026-04-04
```

Safe fix:

- verify prefix contents and storage access;
- keep session audio mode consistent.

Relevant reference: [Operations](./operations.md).

## References

- [docs/cli.md](./cli.md)
- [docs/config.md](./config.md)
- [docs/operations.md](./operations.md)
- [docs/internal/stage-publish.md](./internal/stage-publish.md)