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Your MCP tools take 15% of the context window before you type

Seven popular MCP servers expose 112 tools. Their definitions take about 29,000 tokens before the agent reads your request, roughly 15% of a 200k window. The official MCP client guide says to stop loading everything up front at 1% to 5%. That's the cheap problem. The expensive one is choice: four l…

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  1. 2026-11-11 09:28 · DEV Community — AI
    Your MCP tools take 15% of the context window before you type

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