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Model Context Protocol and the “too many tools” problem.

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Open in Claude12455.md

post Stefano Demiliani

Stefano Demiliani · 2025-09-04 · 720 words · about 3 min

"Having too many tools exposed in an MCP server can degrade the performances and the output of your LLM!"
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Quotes

  • “Having too many tools exposed in an MCP server can degrade the performances and the output of your LLM!” (Directly states the core problem that motivates the entire discussion about tool management)
  • “if tools are crowding out the context window, there’s less room for context about the current project or goal.” (Explains the root cause of performance degradation and why limiting tools matters for agent effectiveness)
  • “a well-designed MCP server gives agents exactly what they need to accomplish their goals without overwhelming them with choices they don’t need.” (Summarizes the design philosophy and best practice recommendation for building effective MCP servers)

Context

  • Features: MCP server autodiscovery, Model Context Protocol, Claude Code, Cursor MCP integration, GitHub Copilot MCP support, MCP Proxy
  • Versions: claude-sonnet-4

Source: Stefano Demiliani, community blog. Summary, key points and quotes are derived (CONTENT-NOTICE.md); read the original for the full text.