Design System
COHERENT_E006

Session artifact missing on resume

The session-resume flow detects a session in `awaiting-ingest` status but the expected input artifact (e.g. `anchor-input.json`, `pages-input.json`) is absent. A previous run wrote the session marker but failed to persist the artifact downstream phases need.

When you see it

Skill-mode auto-resume invoked on a session whose expected input artifact has been removed, corrupted, or never written.

Why

Likely causes: a crash between a phase ingest completing and the next phase's input being written, a manual edit that deleted the file, or a filesystem sync hiccup.

Fix options

  1. 1

    Restart the session from the last complete phase

    The simplest recovery: delete the broken session and start a fresh one.

    $ rm -rf .coherent/session/<uuid>/ && coherent session start --intent "..."
  2. 2

    Preserve the session for debugging

    If you need to understand what happened, end the session with `--keep` so the dir survives. Then start a new session in parallel.

    $ coherent session end <uuid> --keep

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