Crit

Crit

Review your coding agent's plans, diffs and running apps in the browser. Click a line, leave a comment, and the agent gets it.

Adaptive UI for each type of output

To an agent, plans and code are both just text. To you, reviewing a plan and reviewing a web app are different jobs.

Crit gives each type of output its own review UI. Point at the exact thing that's wrong and leave a comment for the agent:

- crit plan.md renders a markdown file with review comments.
- crit finds your git changes and shows them as syntax-highlighted diffs.
- crit http://localhost:3000 proxies your running app and adds a review layer on top.
- crit landing.html renders a static HTML file you can click and comment on.

Everything runs locally from a single binary.

Quickstart

1. Install Crit binary
Brew:

Also available via Go, Nix, Arch Linux, and Windows

Go:

Nix:

Arch Linux:
AUR package, maintained outside this project. Any AUR helper works in place of yay.

Windows:
Note: Then move crit.exe somewhere on your PATH. ARM64 users: swap amd64 for arm64. WSL users: use the Linux binary instead.

Or download the latest release from GitHub.

2. Integrate with your agent
Claude Code:

Crit also works with Cursor, GitHub Copilot, OpenCode, OMO, omp, Codex, Gemini, Qwen, Hermes, Windsurf, Cline, Grok, Aider, and Pi — any agent that can read a file and run a command. See integrations/ for all install methods and details.

3. Tell your agent to use crit

Most integrations include a /crit slash command that automates the full review loop.
The agent launches Crit, waits for your review, then acts on the feedback.
Repeat until you approve.

Here's a 2-minute demo walkthrough of plan review and branch review:

Usage

The recommended way is to run the /crit command in your agent after any piece…