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ChuckBuildsandClaude Opus 5
0339051f0c
run_scheduled_updates_with_changes() snapshotted plugin_last_update, called run_scheduled_updates(), and diffed the two to answer "whose data just changed". But run_scheduled_updates() only enqueues. The work runs on the update worker and stamps plugin_last_update there, after this method has already returned, so the two snapshots were always identical and the result was always an empty list. The only path that ever worked was the synchronous kill-switch, where update() runs inline. Vegas is the caller. That empty list is what feeds mark_plugin_updated(), which drops the cached content for a plugin whose data moved -- so a segment kept scrolling whatever it was first built from. It is the failure the coordinator's own comments describe: last night's live game still drawn as live the next morning. On a live rig: zero update ticks in twenty minutes, with weather, stocks and news all updating on schedule. The worker now records each completed update in a ledger and the call drains it, reporting what has finished since the previous poll rather than what this call enqueued. That costs one tick of latency -- Vegas polls every ~4s -- and is correct whichever side of the queue the work lands on. Failure paths are excluded: they stamp the timestamp too, to space out retries, but no fresh data exists. Verified on the rig it was found on: 0 update ticks before, 208 in twenty-five minutes after, naming real plugins. The behavioural tests here would pass with both production call sites deleted, which mutation testing caught -- they drive the ledger directly. So there is also a structural test asserting the invariant at the source: wherever a successful update stamps plugin_last_update, it must record the completion. Writing it immediately caught that _record_update_failure stamps the same field and must not be included. Mutation-checked: removing either call site, removing both, and dropping the drain's clear are all caught. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01Udr6MfaFLUPhX5Fgo67Jf5