Verified65% confidenceFactExact time
When a large model executes Function Calling, it does not actually perform the call itself—it only outputs an intent declaration, and the actual execution is completed by the host application.
3
Sources
65%
Confidence
Long-term
Relevance
7/14/2026
First Seen
Sources
MCP协议详解：与Function Calling、Agent的关系及实践指南
bilibili六六科技笔记7/11/2026
Related Claims
VerifiedThe underlying implementation of Function Calling does not involve the model actually executing a function; instead, the model outputs a structured description of the calling intent, and the host program actually dispatches the execution and returns the result to the model.80% similarUnverifiedFunction Calling本质上是模型决策、外部执行的两阶段流程，模型本身并不直接运行代码79% similarUnverified函数调用中模型本身无法主动执行代码，仅识别意图并生成符合函数签名的结构化参数，实际执行由调用方负责79% similarUnverifiedFunction Calling采用关注点分离设计，语言模型只负责决策，真正的工具执行由应用层代码负责，模型不直接触碰外部系统77% similar
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