Turn an incident review into actions that can be verified.

Instruction: Write a short causal account and two concrete follow-up actions.

Context:

In a fictional incident, a configuration parser accepted timeout_ms = 0. The service interpreted it as no timeout, so requests accumulated behind a slow dependency and exhausted workers. Tests covered positive values only. Reviewers followed the documented checklist, which did not mention timeout bounds. Recovery restored the prior configuration. No evidence suggests deliberate misconduct.

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The trigger was a zero timeout accepted by the configuration path. The resulting unbounded waits exhausted workers when the dependency slowed...

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