PRs sit in the queue while the author context-switches to something else. By the time review happens, the original reasoning has faded. Agent skills for code review and PR workflows give your coding agent the ability to review diffs, generate test coverage, write PR descriptions, and flag security issues before a human ever looks at the code. The result: human reviewers spend their time on architecture and logic instead of catching typos and null checks.
What to Look For
Agent compatibility. Not every skill works with every agent. Some are built exclusively for Claude Code, while others support Codex, Cursor, and Windsurf. Check compatibility before installing.
Scope of review. Some skills focus narrowly on style and formatting. The best ones check for bugs, security issues, performance regressions, and readability in a single pass.
Output quality. A good review skill produces specific, actionable feedback with severity ratings and suggested rewrites. Vague “this could be improved” comments waste more time than they save.
Install complexity. Most skills install with a single CLI command. Avoid anything that requires custom infrastructure or multi-step configuration unless your team has a strong reason.
Top Agent Skills for Code Review and PR Workflows
1. Code Reviewer
The most direct skill for this use case. Code Reviewer performs structured code review with specific, actionable feedback. It checks for bugs, security issues, performance problems, and readability, not just style. Each finding comes with a severity rating and a suggested rewrite, so the author knows exactly what to fix and how urgent it is.
On large PRs, this skill surfaces the 4-5 things that actually matter, ranked by risk. It catches the null pointer at line 247 while your human reviewers focus on whether the API design makes sense.
Compatible with: claude-code, codex, cursor, windsurf
Category: engineering
Install: gh skill install wshobson/agents/code-reviewer
2. PR Summarizer
Large PRs are hard to review because reviewers do not know where to start. PR Summarizer generates human-readable pull request summaries from diffs. It explains what changed, why it matters, and flags anything reviewers should look at closely.
Especially useful when PRs cross domain boundaries. A backend engineer reviewing a frontend PR gets a clear summary of intent before diving into code. It also catches breaking changes and migration requirements that might otherwise slip through.
Compatible with: claude-code, codex, cursor, windsurf
Category: engineering
Install: gh skill install wshobson/agents/pr-summarizer
3. Git Workflow Skill
Review quality starts before the PR is opened. Git Workflow Skill manages the full git workflow from your agent: branch creation with proper naming, committing with meaningful messages, stashing, rebasing, conflict resolution guidance, and PR preparation. It enforces opinionated defaults that follow team git hygiene.
The real value is consistency. Every branch follows your naming convention, every commit message follows conventional commit format, and every PR description is generated from the diff and linked issue. This eliminates an entire class of review comments that are really just housekeeping.
Compatible with: claude-code, codex, cursor, windsurf
Category: engineering
Install: gh skill install wshobson/agents/git-workflow
4. Test Generator
The most common review comment on any team: “Can you add tests for this?” Test Generator generates unit, integration, and edge-case tests from existing code. It understands function signatures, side effects, and error conditions to produce meaningful coverage rather than boilerplate assertions.
Pair this with Code Reviewer for a strong pre-review workflow. The agent reviews the diff, identifies untested paths, generates tests, and includes them in the PR before a human sees it. The “add tests” round-trip disappears.
Compatible with: claude-code, codex, cursor, windsurf
Category: engineering
Install: gh skill install sickn33/antigravity-awesome-skills/test-generator
5. Security Auditor
Security issues are the highest-stakes findings in any code review, and they are the easiest to miss under time pressure. Security Auditor scans codebases for common vulnerabilities: exposed secrets, SQL injection, XSS, insecure dependencies, and OWASP Top 10 patterns. It returns a prioritized finding report with fix recommendations.
Use this as an automated gate in your PR workflow. Before any human reviewer sees the code, the agent runs a security scan and flags anything that needs attention. It catches the hardcoded API key in a test fixture and the unescaped user input in a template before they reach production.
Compatible with: claude-code, codex, cursor
Category: security
Install: gh skill install wshobson/agents/security-auditor
6. Dependency Auditor
Dependency changes hide in lockfile diffs and are easy to overlook. Dependency Auditor audits npm, pip, and cargo dependency trees for known CVEs, deprecated packages, license conflicts, and version drift. Run it any time a PR touches package.json, requirements.txt, or Cargo.toml. It catches the transitive dependency with a known CVE that nobody would have noticed in a 2,000-line lockfile diff.
Compatible with: claude-code, codex, cursor
Category: security
Install: gh skill install alirezarezvani/claude-skills/dependency-auditor
7. Web App Tester
Code review catches logic errors in the diff, but cannot verify the feature works end-to-end. Web App Tester runs automated end-to-end testing using Playwright. It navigates pages, fills forms, clicks through flows, and reports failures with screenshots.
This completes a full agent-driven review pipeline. After the code is reviewed, tests are generated, and security is scanned, the agent runs the feature in a browser and confirms it works. If something breaks, the screenshot shows exactly where.
Compatible with: claude-code, universal
Category: engineering
Install: gh skill install anthropics/skills/web-app-tester
How to Choose
Start with Code Reviewer and PR Summarizer for immediate impact on review quality and turnaround time. These two cover the core loop: summarize the PR so reviewers know where to focus, then surface bugs and issues automatically.
Add Test Generator if “add tests” is a recurring review comment. Add Security Auditor and Dependency Auditor if your team ships frequently and needs automated safety checks.
Git Workflow Skill is best for teams that waste review cycles on commit formatting and branch naming. Web App Tester fits when PRs involve user-facing changes and you want end-to-end validation before merging.
For most teams, the sweet spot is three skills: Code Reviewer + PR Summarizer + one from the testing or security group, depending on where your process breaks down most often.
FAQ
Q: Can these skills replace human code reviewers? A: No. These skills handle the mechanical first pass: catching bugs, missing tests, and security flags. Human reviewers still make the judgment calls on architecture, API design, and whether the approach is the right one. The goal is to free up human review time for work that requires context and taste.
Q: Do these skills work together in a pipeline? A: Yes. A common setup runs Git Workflow Skill to prepare the PR, then Code Reviewer and Security Auditor in parallel on the diff, then Test Generator to fill coverage gaps. Each skill produces independent output, so you can compose them in whatever order fits your workflow.
Q: What if my team uses an agent other than Claude Code? A: Most of the skills listed here support multiple agents. Code Reviewer, PR Summarizer, Git Workflow Skill, and Test Generator all work with Claude Code, Codex, Cursor, and Windsurf. Security Auditor and Dependency Auditor support Claude Code, Codex, and Cursor. Check the compatibility list on each skill’s detail page for the latest support matrix.