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The Circuit Breaker prevents cascade failures by automatically pausing the task queue when too many tasks fail in a row.

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Configuration

In Project Settings → Engine tab:
  • Failure Threshold — number of consecutive failures before pausing (0 = disabled)

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How It Works

  1. When a task permanently fails (retries exhausted), the consecutive failure counter increments
  2. If the counter reaches the threshold, the circuit breaker activates
  3. The queue stops starting new tasks
  4. A red alert banner appears in the Pipeline Stats

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Recovery

  • Click the Reset button on the circuit breaker banner
  • This resets the counter, deactivates the breaker, and restarts the queue
  • A successful task completion also resets the counter

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Events

  • project:circuit_breaker event emitted on activation/deactivation
  • circuit_breaker_activated webhook fired when triggered