Unverified60% confidenceFactExact time
Anthropic's Tool Use specification requires clients to declare available tools to the model in JSON Schema format; the model triggers calls via tool_use content blocks, and results are returned in the form of tool_result.
2
Sources
60%
Confidence
Long-term
Relevance
7/21/2026
First Seen
Sources
Related Claims
VerifiedTools are essentially function wrappers for external capabilities, paired with JSON Schema descriptions that enable the model to understand a tool's functionality and parameter format.81% similarUnverified工具调用标准逐渐形成以JSON Schema描述工具、以结构化消息传递调用结果的事实标准80% similarVerifiedIn the tool-calling mechanism, developers attach a tool description list in JSON Schema format when calling the LLM API, and the model outputs call parameters in structured JSON format80% similar
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