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ChuckandClaude Opus 5.5
089a177c4b
When the update worker gives up waiting for a plugin's lock (PLUGIN_LOCK_TIMEOUT, 5s) the skip was recorded as a hang, so three in a row opened the circuit breaker. Vegas prefetch holds a plugin's lock for its whole content render, which on a slow Pi can outlast 5s, so a healthy plugin could be pulled from rotation. The skip is now report-only: still logged (rate-limited) and still left as PluginBusyError state error info with last-update stamped, but in health it is counted as a busy skip (busy_skip_count / last_busy_skip, via the new PluginHealthTracker.record_busy_skip) and never touches the failure streak, last_error or the breaker. Only real hangs -- display() or update() running past the executor timeout -- still count toward the breaker. Busy-skip persistence shares the slow-call throttle (first one saved at once so the web process sees it, then at most once a minute per plugin). Tests prove repeated busy skips never open the breaker and repeated real hangs still do, with busy skips interleaved. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>