Verified90% confidenceFactExact time
The underlying mechanism of Tool Use is that developers pre-define the name, description, and parameter structure (Schema) of tools, and the model determines during inference when and which tool to call and outputs structured invocation instructions.
6
Sources
90%
Confidence
Long-term
Relevance
7/12/2026
First Seen
Sources
AI Agent Development Learning Path: Four Stages from Zero to Hands-On Projects
bilibiliAgent搭建7/9/2026
Related Claims
VerifiedFunction Calling (Tool Use) is a standardized mechanism for large models to invoke external tools, where developers pre-declare tool names, descriptions, and parameter schemas, and the model autonomously determines when to make a call.83% similarUnverifiedCodex的Skill机制底层是工具调用（Tool Use）框架，模型在推理过程中可自主决定何时调用哪个工具80% similarVerifiedTool Use / Function Calling is a core mechanism in AI agent architecture, through which the model issues structured instructions to external systems via tool calling interfaces.78% similarVerifiedA tool schema contains a functional description, parameter names, types, meaning explanations, and a required field indicating whether a parameter is mandatory.77% similarUnverifiedThe tool description (Tool Schema) determines whether the LLM can select the tool in the correct scenario and correctly fill in the parameters, and is a key engineering detail for the stable operation of the Agent.76% similar
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