Claude Code

One plugin install makes Claude Code a co-reviewer.

First, install the co-review command – the plugin needs it to launch co-review mcp.

Then install the plugin. Inside Claude Code, run:

/plugin marketplace add sdsvn/co-review
/plugin install co-review@co-review

The first command adds Co-Review’s plugin catalog. The second installs the plugin from it.

From a terminal, as one line:

claude plugin marketplace add sdsvn/co-review && \
  claude plugin install co-review@co-review

Check it with /mcp – plugin:co-review:co-review should be connected.

What you get

The plugin gives you several ways to start and run a review:

/co-review:review [base] – Claude opens its change as a pull-request page, flags what deserves attention, answers your comments in their threads, and acts on your verdict.
/co-review:pr <n> – Claude reviews someone else’s pull request with you: its first pass, your verdict, then posted to the pull request as a review with line comments and suggestions when you choose to.
/co-review:design <task> – Claude writes a design doc, you review it, and it implements what you approved.
/co-review:audit [focus] – Claude reviews the whole repository first: a few proposed findings per area, for you to accept or dismiss, then it answers your questions.
Live comments – With channels on, your questions reach the running session the moment you ask them.
co-review:co-reviewer – A background subagent that keeps answering your review while the main conversation works.
Session hook – Opening Claude Code in a repository with open reviews tells it which questions are waiting.
Skills – “Review this with me” and “design this first” work as plain requests.

Live comments

Channels are a Claude Code research preview. To enable them, start Claude Code with a flag:

claude \
  --dangerously-load-development-channels \
  plugin:co-review@co-review

Without the flag, everything still works. Claude waits for your comments instead of receiving them as they happen.

For a team

To offer the plugin to everyone on the project, commit this to .claude/settings.json:

{
  "extraKnownMarketplaces": {
    "co-review": {
      "source": {
        "source": "github",
        "repo": "sdsvn/co-review"
      }
    }
  },
  "enabledPlugins": {
    "co-review@co-review": true
  }
}

Claude Code will offer the plugin when someone trusts the folder.

For Pi, Codex, Cursor, VS Code, Gemini CLI, Zed and others, see Connect your agent.