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Your tool descriptions are prompts: how to write tools LLM agents actually use correctly

Monday AI Insight. When an agent calls the wrong tool, most of us start rewriting the system prompt. But the model also reads something else on every turn: your tool names, descriptions and parameter schemas. Anthropic's docs say it directly: when you call the API with tools, it builds a special sy…

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  1. 2026-11-02 09:27 · DEV Community — AI
    Your tool descriptions are prompts: how to write tools LLM agents actually use correctly

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