First moveStop every writer, copy the complete Session directory, hash the original, and inspect only the copy. In Windows report #4855, one bad header prevented workspace initialization.
Route the exact signature.
Quarantine one artifact. Generic recompression changes the format.
Find duplicate writers before touching durable event numbers.
Identify the producer or reused call identity before editing a healthy frame stream.
Capture request, response, base cursor, and durable range before believing exhaustion.
Startup wrapper, inner cause
plugin tree failed to load identifies the workspace loader; first frame is not exactly one header line identifies the Session artifact. Isolate the latter before changing the launcher or deleting a profile.Choose the least destructive outcome.
Neverturn a failed page request into durable knowledge that history ended
Proof gates.
- Healthy Sessions stay visible.
- Bad path is identified.
- Header owns one frame.
- Committed seq is contiguous.
- One Session has one writer.
- Read failures retain the last cursor.
- Aborted prefixes survive cold reload.
- Projection failure preserves raw range access.
Primary evidence.
Keep the full recovery runbook.
The canonical guide includes physical framing, sequence, identity, projection, read-state boundaries, immutable evidence capture, and bounded recovery.
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