Ca arbiter

$ca-arbiter — restore orchestration

The exit door for $ca-dev. No-op if dev mode is not active.

Flow

1. Log exit — append to <project-root>/.codearbiter/overrides.log (append-only, >>):

   [ISO-8601 timestamp] | BY: <email> | DEV: exit
   

2. Marker — remove <project-root>/.codearbiter/.markers/dev-active.

3. Resume — re-present the startup state (stage, blocking CONFIRM-NN, in-flight tasks) and await a slash command. Orchestration, routing, and all gates are back in force.

Hard gate

MUST write the DEV: exit line to overrides.log and remove the dev-active marker before resuming orchestration — the exit is on the audit trail like the entry. MUST NOT rewrite or truncate overrides.log — the append-only rule has no dev exception, on entry or exit. If a prior session ended mid-dev, SessionStart has already appended the synthetic BY: session-cleanup | DEV: exit close line and cleared the marker (session-start.py, observability-001). In that case MUST NOT write a second DEV: exit for that orphaned entry — the close is already on the trail.

Session-scoped clearing (#271): SessionStart's synthetic close is now conditional on the marker plausibly being abandoned rather than owned by a different, still-live session — it will NOT clobber another concurrently-running session's live /dev marker or write a false DEV: exit for it. $ca-arbiter remains the ONLY way to cleanly close your OWN /dev session's audit pair; do not rely on a future SessionStart to do it for you.