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git-why is a single binary. Install it, and git why <command> works anywhere Git does.

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macOS and Linux

Installs git-why to /usr/local/bin and automatically launches setup.

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Windows

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Verify

That’s it. No daemons, no background services, no system modifications beyond the binary.

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Setup

The install script automatically launches setup after installing. For Homebrew, Scoop, or Winget installs, run setup manually:
Setup handles API key configuration (once) and agent integration selection. Repository-local setup (hooks, storage) happens automatically on your first git why save.

MCP server

Connect via MCP — agent gets save, get, and search tools.

Agent skill

Connect via skill files — auto-discovered format guidance.
Or go straight to the quickstart to set up everything in one pass.