Unverified50% confidenceFactExact time
LangChain uses Pydantic to convert function signatures into JSON Schema, which is then injected into requests sent to the LLM.
1
Sources
50%
Confidence
Medium-term (~90 days)
Relevance
8/14/2026
First Seen
Valid until: 11/12/2026
Sources
Related Claims
UnverifiedLangChain的@tool装饰器通过Python的inspect模块提取函数签名，结合Pydantic进行类型验证，生成符合OpenAI Function Calling规范的JSON Schema70% similarUnverifiedFastMCP 将函数签名自动转换为符合 JSON Schema Draft 7 规范的参数描述66% similarUnverified斜杠指令在注册时会声明其参数 schema，基于 JSON Schema 规范64% similarVerifiedFunction Calling机制中，开发者将工具的名称、功能描述、参数Schema（通常为JSON Schema格式）注入到模型的请求中，模型输出结构化的JSON而非自然语言来调用工具64% similarUnverifiedUnder the tool-calling paradigm, the LLM outputs a structured function-call intent (in JSON format), which is actually executed by an external system that returns the result to the model.64% similar
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