Expired50% confidenceSolutionExact time
When defining tools with the @tool decorator, LangChain automatically generates a JSON schema from type annotations and docstrings to send to the model; the clearer the docstring, the higher the tool-calling accuracy.
1
Sources
50%
Confidence
Medium-term (~90 days)
Relevance
7/17/2026
First Seen
Valid until: 10/15/2026(expired)
Sources
Related Claims
Unverified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82% similarUnverifiedThe schema for tool calls is essentially a JSON Schema specification that describes the tool name, parameter names, type constraints, and required fields.79% similarUnverifiedIn 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 format77% similarUnverifiedAnthropic'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.77% similarUnverifiedTools 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.75% similar
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