cc-os/plugins/os-adr/eval-c/fixture/project/docs/adr/0006-all-job-state-transitions-logged-to-audit-trail-for-compliance.md

id	date	status	supersedes	superseded-by	affected-paths	affected-components
0006	2026-03-01	Accepted			taskq/logging.py taskq/execution.py	logging execution

0006 — All job state transitions logged to audit trail for compliance

Context

No record of who/when changed job status for audit/compliance reporting.

Decision

Every job state change (enqueue, start, success, failure, escalate) logged to immutable audit trail with timestamp, user (if applicable), and reason. Audit trail never deleted, only archived.

Consequences

Strong audit trail. Extra logging overhead. Requires cleanup/archival process for large deployments. Larger on-disk footprint.

Alternatives rejected

Ad-hoc logging rejected: inconsistent, missed events. Centralized event store rejected: external dependency.