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Why JSON tool calling is breaking your agents (and how MCP Code Mode fixes it)

Standard tool calling looks great when your agent has three tools. You pass the JSON schemas in the system prompt, the model emits a tool_call payload, your backend executes it, and you feed the result back. Then you connect your agent to real enterprise infrastructure. Suddenly you have 4 MCP serv…

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  1. 2026-11-09 11:06 · DEV Community — AI
    Why JSON tool calling is breaking your agents (and how MCP Code Mode fixes it)

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