Unverified50% confidenceFactExact time
When Claude Code starts, it only loads the names of MCP tools, and only searches for and loads the full documentation of the corresponding tool when a task needs it; this mechanism is called 'tool search'.
1
Sources
50%
Confidence
Medium-term (~90 days)
Relevance
10/14/2026
First Seen
Valid until: 1/12/2027
Sources
Related Entities
Related Claims
VerifiedWhen MCP tools occupy more than 10% of the context window, Claude Code automatically switches to Tool Search Mode.79% similarUnverifiedIn MCP, tool discovery is completed through the tools/list interface, and tool invocation is completed through the tools/call interface.74% similarUnverifiedClaude Code has added a tool search feature, no longer loading all MCP schemas at once, narrowing the context overhead gap with CLI.74% similarVerifiedMCP Client has automatic tool discovery capability and does not need to know in advance which tools the server provides, instead querying them dynamically at runtime73% similarUnverified工具调用已从单次简单查询演进为支持并行工具调用、工具链式编排以及MCP等标准协议的复杂多步骤编排系统72% similar
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