How Claude Code's Tool Search Saves 90% of Your Context Window
Dev.to AI
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Generative AI
Tool search automatically defers MCP tool definitions, replacing them with a single search tool that loads tools on-demand, preserving your context window for actual work. How Claude Code's Tool Search Saves 90% of Your Context Window What Tool Search Actually Does Every MCP tool you connect to Claude Code comes with a definition - name, description, and JSON schema - that costs 200-800 tokens. With multiple MCP servers (GitHub, Slack, Jira, etc.), you can easily burn 60,000+ tokens on tool definitions alone, every single turn, before Claude even reads your message.