This Fixed the Greatest Tool Limitation In AI Agents

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MCP context bloat is a well-known problem in AI agent development, where having many MCP tools connected floods the context window with tool descriptions. MCP2 CLI addresses this by converting MCP servers into bash-executable CLI tools at runtime rather than build time, so tool definitions aren't pre-loaded into the context. It includes a caching layer (1-hour TTL) for performance, handles OpenAPI/REST APIs through the same interface, and keeps sensitive credentials out of command-line arguments via environment variables or secret managers. A practical walkthrough demonstrates connecting Supabase, GitHub, Puppeteer, and Context7 MCPs to Claude Code, using skills to guide the agent on when to use each tool, and piping large MCP outputs to files instead of the context window to further reduce token usage.

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