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Code Review

block/agent-skillsOfficial

This is a structured checklist that walks you through the main areas to cover during pull request reviews: functionality, code quality, testing, security, performance, and documentation. It's the kind of thing you'd want open in a browser tab when you're doing a review and need to make sure you're not missing anything obvious. The checklist hits the essentials without getting overly prescriptive, covering things like edge cases, hardcoded values, parameterized queries, and whether comments explain the "why" instead of the "what". Good for teams that want consistent reviews or for solo developers who want to be thorough before merging their own work.

skills.sh installs
325
GitHub stars
26
last updated
Aug 21, 2026
View on GitHub

Install

$ npx -y skills add block/agent-skills --skill code-review --agent claude-code

Installs into .claude/skills of the current project.

Files

Code Review Checklist

When reviewing code, check each of these areas:

Functionality

  • Code does what the PR description claims
  • Edge cases are handled
  • Error handling is appropriate

Code Quality

  • Follows project style guide
  • No hardcoded values that should be configurable
  • Functions are focused and well-named

Testing

  • New functionality has tests
  • Tests are meaningful, not just for coverage
  • Existing tests still pass

Security

  • No credentials or secrets in code
  • User input is validated
  • SQL queries are parameterized

Performance

  • No obvious performance issues
  • Database queries are optimized
  • No unnecessary loops or iterations

Documentation

  • Public APIs are documented
  • Complex logic has comments explaining "why"
  • README updated if needed
SKILL.md on GitHub

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Details

Repository
github.com/block/agent-skills
Categories
Git & Pull Requests, Code Review & Quality, AI & Agent Building
First seen
Jun 3, 2026

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