LeanCTX — Context Gateway for AI systems.

Persistent project knowledge graph for coding agents. MCP server with semantic search, in-process embeddings, and web explorer.

372 AI skills, 76 expert agents, and 867 stdlib Python tools for every team: engineering, PM, marketing, C-level, compliance, business ops, and research. Installs on Claude Code, Cursor, Codex, Gemini, Copilot, and 6 other AI assistants.

MCP tool: let you point at DOM elements for your favorite agentic coding tool. Let AI see what you see.