Is code-review open source?

Yes — gemini-cli-extensions/code-review is open source, released under the Apache-2.0 license.

How popular is code-review?

gemini-cli-extensions/code-review has 532 stars on GitHub.

Where can I find code-review?

gemini-cli-extensions/code-review is on GitHub at https://github.com/gemini-cli-extensions/code-review.

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gemini-cli-extensions/code-review

Google brings its GitHub code reviewer to the terminal

This Gemini CLI extension reviews local diffs and pull requests so you can catch quality issues before they hit GitHub.

★532 stars Coding Assistants

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What it does The extension adds /code-review and /pr-code-review commands to Gemini CLI. The first scans code changes on your current branch; the second analyzes an existing GitHub pull request. It comes from the same team behind the Gemini Code Assist GitHub App, and aims for similar code quality analysis.

The interesting bit It treats the terminal as the primary review surface. For PR reviews, it leans on the GitHub MCP server to bridge your CLI session and GitHub, letting you audit a pull request without switching to a browser.

Key highlights

Reviews uncommitted local branch changes without pushing
Supports PR review by URL or environment variables like REPOSITORY and PULL_REQUEST_NUMBER
Authored by the Gemini Code Assist GitHub App team
Requires Gemini CLI v0.4.0 or newer
Licensed under Apache 2.0

Caveats

PR review requires enabling and configuring the GitHub MCP server separately; the README does not suggest this works automatically.
The README is vague on exactly which code quality issues it flags beyond general “quality issues.”

Verdict Handy if you already use Gemini CLI and want pre-push feedback. Probably redundant if your team is already satisfied with native GitHub review workflows.

Frequently asked

What is gemini-cli-extensions/code-review?: This Gemini CLI extension reviews local diffs and pull requests so you can catch quality issues before they hit GitHub.
Is code-review open source?: Yes — gemini-cli-extensions/code-review is open source, released under the Apache-2.0 license.
How popular is code-review?: gemini-cli-extensions/code-review has 532 stars on GitHub.
Where can I find code-review?: gemini-cli-extensions/code-review is on GitHub at https://github.com/gemini-cli-extensions/code-review.