Tool calling Returns HTTP 200, But I “Assumed” the Tool Ran — Have You Seen This?

Short summary

The post highlights a common silent failure mode in LLM tool calling: HTTP 200 responses mask broken tool execution, result injection, or loop control bugs that cause agents to hallucinate or skip steps. The author proposes logging a full tool-call lifecycle (requested, executed, injected, completed) keyed by tool_call_id, and asks the community to share failure patterns and fallback strategies. The post ends with a promotional link to tokenbay for testing tool-calling integration stability.

• •Silent tool failures occur when steps 2-4 (execution, injection, final generation) break while HTTP 200 masks the problem
• •Author recommends lifecycle logging with tool_call_id tracking: requested, executed, injected, completed
• •Discussion of fallback strategies: retry with limits, fail-fast with graceful degradation, or no-tool fallback

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