Expired50% confidenceFactExact time
Claude Code's tool-calling mechanism is based on Anthropic's Tool Use API, where each tool call contains structured input parameters and return values.
1
Sources
50%
Confidence
Medium-term (~90 days)
Relevance
7/3/2026
First Seen
This claim has expired. It is kept for the record and no longer describes the current state.
Valid until: 10/1/2026(expired)
Sources
Claude Code Session Rewind Explained: A Practical Guide with Git Workflow Integration
bilibili啥都懂的程序员6/22/2026
Related Claims
UnverifiedAnthropic的Claude通过Tool Use API实现工具调用功能，并在多工具并行调用和复杂任务分解方面有优化81% similarUnverifiedAnthropic's Claude model natively supports the Tool Use protocol, where the model generates structured tool call requests in its responses.79% similarUnverifiedClaude Code中的Skill机制类似于LangChain中的Tool定义或OpenAI的Function Calling声明，本质是提示词的高级封装78% similarVerifiedThe Skills system of Claude Code is essentially an encapsulation and customization of its Tool Use mechanism.77% similarUnverifiedThe key breakthrough in tool-calling capability lies in the model's ability to generate structured function-call requests and correctly parse tool return results before continuing to reason, rather than simply concatenating tool outputs into the prompt77% similar
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