Verified75% confidenceFactExact time
The 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.
5
Sources
75%
Confidence
Long-term
Relevance
7/7/2026
First Seen
Sources
Agent Skills 深度解析：概念、结构与实战案例
bilibili小猫考神附体_7/6/2026
Related Claims
UnverifiedFunction 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84% similarUnverified工具调用的底层依赖函数签名描述（Function Schema），模型在推理时决定是否触发调用、传入参数，由宿主程序执行并将结果回注上下文81% similarVerifiedFunction Calling refers to the model declaring, when generating a response, that a specific function needs to be called with specific parameters, which is then executed by an external system and the result returned to the model.81% similarVerifiedWhen 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.80% similar
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