Malformed arguments, wrong tool, hallucinated parameters, retry loops: the full failure taxonomy plus the production defenses (validation, idempotency, capped retries) that separate builders from readers.
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What are the failure modes of tool/function calling, and how do you handle them in production?
Malformed arguments, wrong tool, hallucinated parameters, retry loops: the full failure taxonomy plus the production defenses (validation, idempotency, capped retries) that separate builders from readers.
Updated Aug 2026 · Grounded in real Forward Deployed Engineer interview loops and written to a senior-engineer editorial bar.
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