Adds per-endpoint contract checks beyond the status-only comparison:
- Read endpoints assert response shape (trace.traceId present;
events/attempts arrays; metadata-get { metadata, metadataType }
keys; retrieve-v3 carries id + taskIdentifier + status). The result
endpoint explicitly asserts 404 — its accidental-but-correct
pre-Phase-A behaviour is now the locked contract.
- Mutation endpoints get a read-back assertion: after PUT metadata,
re-read and confirm the snapshot reflects the patch. After POST
tags, retrieve and confirm runTags contains the new tag. Catches
the case where the API returns 200 but the snapshot didn't actually
patch.
- Replay asserts the response carries a new run_-prefixed id.
- New listing probe: hits /api/v1/runs and asserts the buffered runId
is present in the page. Locks in Phase E's listing-merge behaviour.
Script remains backwards-compatible — same exit codes, same env-var
contract. Drift count now reflects shape violations alongside status
divergences.
Dan Sutton
a871022b79