- poller.py: CommentPoller polls PR comments rather than taking webhooks, keeping the VM outbound-only (B3). On an outage it backs off exponentially, caps, and retries indefinitely while logging: polling is pure intake, so an outage delays a reaction but never fails a task or forces a transition - prime() marks the existing thread as seen without delivering it, so starting a watch does not re-address feedback already handled - Review loop: a comment in PR_OPEN enters the canonical transcript, the executor responds, and the fix is pushed to the same branch with a reply on the PR. No intent is recorded for a follow-up push — the PR already exists, so a repeated push is harmless, unlike opening a second PR - Comment authors are checked against a separate Gitea operator allowlist: a PR comment is an instruction channel into an agent that writes code, so it is operator-scoped, and a Gitea login is not a Matrix MXID (A4 per-channel allowlists) - Orchestrator now holds a lock: transport and the poller deliver on separate threads, and state transitions must not interleave - Backoff timings are injectable, so the outage path is tested in milliseconds instead of being untestable Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>