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fix(run-engine): don't mislabel DB errors as UnclassifiableWaitpointId in completeWaitpoint - #4259
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…d in completeWaitpoint forWaitpointCompletion resolves the owning store by probing the database, so a transient DB/infra error surfaced from that call was being caught and rethrown as UnclassifiableWaitpointId with a misleading "length matches neither cuid nor run-ops id" message, losing the original error's type, retryability, and error grouping. Narrow the catch so only a genuine id-classification failure (UnclassifiableRunId) becomes UnclassifiableWaitpointId; every other error (including DB connectivity failures) is rethrown unchanged.
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…fication wrapping Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01PVbKhNnh8A5tWDGKq9GggV
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…ion-db-error-mislabel # Conflicts: # internal-packages/run-engine/src/engine/systems/waitpointSystem.ts
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…as instanceof The intended thrower of UnclassifiableRunId is an injected classifier, which can arrive from a separately built bundle carrying its own copy of the class, where instanceof misses. The class sets its name explicitly, so the name check keeps the wrap reliable across module instances. A missed match was already harmless (the error bubbled unchanged); this preserves the clearer label in the one scenario the branch exists for.
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Summary
The waitpoint completion path wrapped every error from the store-resolution step (
runStore.forWaitpointCompletion) asUnclassifiableWaitpointId. That step probes the database to find the owning store, so a transient connection failure surfaced as a misleading "unclassifiable waitpointId" error, hiding the real cause and losing the underlying error's type, retryability and grouping. During a brief database failover this mislabel sent an incident investigation down a false trail before the real connection error was found underneath.Fix
The catch is narrowed: only a genuine
UnclassifiableRunId(the documented classification-failure signal fromRunStore.forWaitpointCompletion) becomesUnclassifiableWaitpointId. Every other error, including database connectivity failures, is rethrown unchanged.With the default classifier this also turns
UnclassifiableWaitpointIdinto a clean signal: it no longer fires on infra noise, so any occurrence indicates a real id-routing defect worth alerting on. Recovery does not depend on this change, since lost completion side effects are re-delivered by the finalization guard from #4849; this PR is about diagnosing failures correctly.A hermetic unit test locks both behaviors: a database error bubbles up unchanged, and a classification failure is wrapped with the original error as
cause.