Verified75% confidenceFactExact time
Function Call does not actually execute code; the model only outputs a structured JSON string, and the actual execution is performed by the host program.
5
Sources
75%
Confidence
Long-term
Relevance
7/8/2026
First Seen
Sources
Build an AI Agent Framework from Scratch: A Full Walkthrough of Function Call and MCP
bilibiliAI大模型课堂-卢菁老师7/6/2026
Related Claims
VerifiedThe core mechanism of Function Calling is that developers describe external function signatures in JSON Schema format, and the model outputs structured JSON invocation instructions that conform to the schema specification.78% similarUnverifiedFunction Calling is not a modification to the Transformer architecture itself, but rather teaches the model through system prompts and fine-tuning data to output JSON in a specified format under certain conditions.75% similarUnverified工具调用（Function Calling）允许模型在推理过程中调用外部函数或API，但在提示词模糊或模型版本更新后可能退回自然语言输出而非标准JSON72% 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72% similar
Cite This Claim
Stable URI
https://kongchang.com/claim/271843API
curl https://kongchang.com/api/v1/knowledge/claims/271843MCP
get_claim(id=271843)