The advisory */15 cron fired a full-board sweep four times an hour at
GitHub's 1-minute billing floor; events carry real state changes in
seconds, so the cron only backstops a forgotten handoff. Relax it to
hourly and narrow the issues: trigger to [opened, closed] — the two
actions with promptness-critical reconcile behavior — dropping the
labeled/unlabeled churn source. Per-trigger why-comments added.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
