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hardAnthropicOpenAIRetool

Build a client for a flaky API: retries with exponential backoff and jitter, timeouts, and idempotency

The question where production scars are the rubric. Anyone can write a retry loop; the grade lives in which errors you DON'T retry, why jitter exists, and what an idempotency key actually protects you from.

Updated Aug 2026 · Grounded in real Forward Deployed Engineer interview loops and written to a senior-engineer editorial bar.

The question where production scars are the rubric. Anyone can write a retry loop; the grade lives in which errors you DON'T retry, why jitter exists, and what an idempotency key actually protects you from.

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