Open Code Review

by alibaba

Open Code Review is a Quality skill for Claude Code, published by alibaba in open-code-review.

20.4K stars1.4K forkson alibaba/open-code-reviewAdded 2026/08/14+1% in starsRepository updated 2026/08/14

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agentagent-skillscode-reviewcode-review-assistantharnessrepository-level-context

Install in seconds

Install Open Code Review

Copy Open Code Review into your Claude Code skills folder. Run the command in your terminal, or review the source on GitHub before installing.

terminal

npx degit https://github.com/alibaba/open-code-review/tree/main/skills/open-code-review ~/.claude/skills/open-code-review

Requires Node.js. Downloads this skill only — not the rest of the repository — into your Claude Code skills folder.

Without Node.js

git clone https://github.com/alibaba/open-code-review.git

Clones the whole repository, then copy the skill’s own directory into your skills folder yourself.

In this catalog

Source file: skills/open-code-review/SKILL.md in alibaba/open-code-review
Installs to: ~/.claude/skills/open-code-review
Collection: One of 8 skills cataloged from this repository
Category: Quality — 1354 skills

What Open Code Review does

Open Code Review performs AI-powered code review on Git changes using the ocr CLI, producing structured line-level review comments. Use it when the user asks to review a pull request, commit, staged/unstaged changes, or compare branches for bugs, security issues, performance problems, and code quality concerns.

Open Code Review is cataloged under Quality on DirSkills. Open Code Review comes from a repository tagged agent, agent-skills, code-review, code-review-assistant and harness.

Documentation

README

Excerpt

Open Code Review

A skill for invoking open-code-review (ocr) — an open-source AI code review CLI that reads Git diffs and generates structured, line-level review comments.

Prerequisites check

Before starting a review, verify the environment:

# 1. Check the CLI is installed
which ocr || echo "NOT INSTALLED"

# 2. Verify LLM connectivity
ocr llm test

If ocr is not installed, install it first:

npm install -g @alibaba-group/open-code-review

If ocr llm test fails, the user must configure an LLM. Guide them with one of these options:

Option A — Environment variables (highest priority, recommended for CI):

This is the opening of the README. Read the full README on GitHub.

Frequently asked about Open Code Review

What else does alibaba publish alongside Open Code Review?
Open Code Review is one of 8 skills that DirSkills catalogs from alibaba/open-code-review, the repository it ships in. Its siblings there include Open Code Review, Open Code Review and Open Code Review. Each one is a separate skill with its own page in this directory, installs the same way Open Code Review does, and is maintained by alibaba in that same repository. The rest of the collection is listed on the alibaba/open-code-review page.
How does Open Code Review compare to other Quality skills?
Open Code Review ranks #142 by stars among the 1354 Quality skills in this catalog. The most-starred ones next to it are Benchmark, Benchmark Optimization Loop and API Design Patterns. DirSkills ranks by the star count of the repository each skill ships in, so that order reflects how popular those repositories are rather than any review of Open Code Review against them. Open each page to compare what they document and how they install.