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flowgraph/tasks/reactive-retry-semantics.md

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id, name, status, depends_on, scope, risk, impact, level
id name status depends_on scope risk impact level
reactive/retry-semantics Implement retry semantics — event log append with new requestId, status projection respects retries completed
reactive/workflow-root
narrow medium component implementation

Description

Implement the retry semantics where retries are natural append events. A retry creates a new call.requested with a new requestId, and the status projection derives the current state by scanning for the most recent event per node. No retried status or state mutation needed.

Acceptance Criteria

  • nodeKeyToRequestId.set(nodeKey, newRequestId) overwrites the previous requestId — the projection tracks the latest attempt
  • getResult() derives from the most recent terminal event (responded/error/aborted) for the current requestId
  • Retry sequence: call.error(requestId=1)call.requested(requestId=2)call.responded(requestId=2) → status is "completed" (from latest event)
  • Previous attempt events preserved in eventLog — full history maintained
  • Conditional.test and Map.over see the latest result including retry outcomes
  • Unit tests: retry sequence produces correct final status, getResult reflects latest attempt, event log preserves full history

References

  • docs/architecture/reactive-execution.md — retry semantics, event-to-status mapping
  • docs/architecture/schema.md — CallEventMapValue

Notes

To be filled by implementation agent

Summary

To be filled on completion