leantoken

LeanToken

Code intelligence for agents: find the code that matters and keep your context window and tokens lean.

Language: English · 简体中文 · 日本語 · 한국어 MCP Registry name: mcp-name: io.github.morluto/leantoken

Install · Why LeanToken · Tools · CLI · How it works · Docs Measured token savings: In a controlled 60-run study, LeanToken used 20.1% fewer model input tokens than the agent's built-in tools with limited repository exploration, and 37.6% fewer than those tools with broad exploration. See exactly how it was measured in the measurement methodology. Quick start

Add LeanToken to Claude Code, Cursor, OpenCode, Codex, Gemini CLI, or Antigravity:

Setup behavior and safety

Current releases stop setup before writing when npx resolves a stale project-local or ancestor install, and point to npx leantoken@latest setup. Older releases that predate this check can be bootstrapped directly with that versioned command.

The interactive setup wizard preselects supported clients it detects; you can change that selection before continuing. It then shows the exact configuration paths and MCP launcher and asks for a separate final confirmation. Automation never treats detection as consent. An npx-based setup pins the exact LeanToken version that ran setup, so restarting a client cannot silently move to a newer release.

Global setup never stores the repository where setup happened. OpenCode gets a workspace-relative working directory; other supported clients launch LeanToken from the workspace cwd selected by the host. If a host instead starts it from the home directory or a filesystem root, LeanToken refuses to index that broad root by default.

Restart or reload the configured clients, then verify the connection and first retrieval from a repository: