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Oct 20, 2026 · Artificial Intelligence

Taming MCP Tool Explosion: Slimming DeepSeek Harness Context After Adding REA

The author details how adding REA's 130 MCP tools alongside OpenPencil's 150 tools overwhelmed a 256K context window, and explores three optimization strategies — per-project tool filtering, lazy loading via Tool Search, and a custom Meta-MCP proxy — plus REA-specific schema reductions like Evidence ID references and split union types.