Glossary changedglossary
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175175### MCP Tool Search
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177A context-saving mechanism that defers MCP tool schemas until needed. Only tool names load at startup; Claude fetches the full schema on demand when it decides to use a specific tool. This keeps idle MCP servers from consuming much context.
177A context-saving mechanism that defers MCP tool schemas until needed. Only tool names and server instructions load at startup; Claude fetches the full schema on demand when it decides to use a specific tool. This keeps idle MCP servers from consuming much context.
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179179Learn more: [Scale with MCP Tool Search](/docs/en/mcp#scale-with-mcp-tool-search)
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