onetool-mcp: OneTool MCP is a single MCP server that bundles 100+ tools — Brave search, Google, Context7, AWS, Playwright, Chrome DevTools, Excel, database operations, and more. Instead of registering each tool individually and burning context on their definitions, agents write short Python code to call any tool on demand. Anthropic engineering research backs this approach: code execution reduces token usage by over 98%, cutting costs dramatically when agents need many external tools.; delimit-mcp-server: Delimit provides API governance, breaking change detection, and persistent memory for AI coding assistants. It works across Claude Code, Codex, Cursor, and Gemini CLI to prevent breaking changes and maintain context across sessions.
Cutting MCP token overhead when an agent needs 10+ external tools
Protect APIs from breaking changes before merge