GitWarren

What is GitWarren?

GitWarren is a single-user, local code-review app for the moment a coding agent has finished and left a dirty worktree. It folds staged, unstaged and untracked files into one diff you can comment on before anything is committed, and it exposes the same review tools to Claude Code, Codex or any MCP client over stdio.

Key features

• Reviews the dirty worktree: staged, unstaged and untracked files folded into one diff, including files the agent created and never git-added
• Finds the worktree where the branch is checked out, wherever it lives on disk, so you do not have to push first
• PR-shaped UI: conversation, commits and files-changed tabs, with inline comments on specific lines
• MCP server over stdio: the site states it exposes the same seventeen tools the app uses (open a review, read the discussion, reply, comment on a line, resolve)
• Agent comments are always marked as machine; the tool name comes from the MCP handshake, not from whatever the model calls itself
• Two concurrent MCP sessions get distinct ids, so two agents in one review stay two
• You can edit or delete anything; an agent can fix its own typo but cannot quietly rewrite yours
• No account, nothing cached (every diff is read from git at display time), reviews stored in one local SQLite file; desktop for macOS, Windows and Linux plus a CLI that serves the same UI

Who it's for

• Read a Claude Code or Codex worktree on your laptop before the first commit
• Ask the agent that wrote the diff to explain a line, in the review thread, via MCP
• Run two agents in one review and keep their comments attributed separately
• On a machine without the desktop app, serve the same review UI with `npx gitwarren serve`

When not to use it

Not a team GitHub App and not a hosted PR bot. It is one person, one machine, no server, no notion of anybody else. Skip it if you need review after push, multi-seat permissions, or a check that runs in CI.

FAQ