Top 10 Popular Agent Skills - January 2026
The Agent Skills ecosystem is expanding rapidly in January 2026.
This article ranks the most popular skills this month.
Top 10 Popular Skills
#1: code-reviewer
Category: Code Review Supported Tools: Claude Code, Codex CLI, Cursor, GitHub Copilot
Reviews PR code for security, performance, and maintainability. Many developers use it to streamline code review.
Why Popular:
- Clear, practical review criteria
- Works across multiple tools
- Ideal for team standardization
#2: pr-creator
Category: Git/PR Supported Tools: Claude Code, Codex CLI
Auto-generates PR descriptions from commit history. Structures "what changed" and "why it changed."
Why Popular:
- Significantly reduces PR creation time
- Reviewer-friendly format
- Customizable to team PR templates
#3: docstring
Category: Documentation Supported Tools: Claude Code, Codex CLI, GitHub Copilot
Auto-generates docstrings for functions and classes. Supports Python, JavaScript, TypeScript, and more.
Why Popular:
- Reduces documentation effort
- Multi-language support
- Customizable output format
#4: test-generator
Category: Testing Supported Tools: Claude Code, Codex CLI
Generates test code from source. Supports Jest, Vitest, pytest, and more.
Why Popular:
- Reduces test writing time
- Improves coverage
- Considers edge cases
#5: skill-creator
Category: Skill Creation Supported Tools: Claude Code, Codex CLI
Helps create new skills. Generates SKILL.md scaffolds following best practices.
Why Popular:
- Lowers barrier to skill creation
- Produces standard-compliant skills
- Beginner-friendly
#6: security-audit
Category: Security Supported Tools: Claude Code, Codex CLI
Checks code for security vulnerabilities, focusing on OWASP Top 10.
Why Popular:
- Automates security review
- Provides specific fix suggestions
- CI/CD integrable
#7: refactor-assistant
Category: Refactoring Supported Tools: Claude Code, Cursor
Assists code refactoring. Simplifies complex code, eliminates duplication.
Why Popular:
- Provides refactoring perspectives
- Suggests incremental improvements
- Considers existing code impact
#8: commit-message
Category: Git Supported Tools: Claude Code, Codex CLI
Generates appropriate commit messages from changes. Supports Conventional Commits format.
Why Popular:
- Improves commit message quality
- Easy team standardization
- Auto-detects prefix (feat/fix, etc.)
#9: api-docs
Category: Documentation Supported Tools: Claude Code, Codex CLI
Generates API endpoint documentation. Supports OpenAPI/Swagger format.
Why Popular:
- Streamlines API spec creation
- Standard format output
- Auto-generates from existing code
#10: bug-report
Category: Workflow Supported Tools: Claude Code, Cursor
Generates bug report templates. Structures reproduction steps, expected behavior, actual behavior.
Why Popular:
- Improves bug report quality
- Captures all necessary info
- Ideal for team operations
This Month's Trends
Rising Demand for Security Skills
Following GPT-5.2-Codex's enhanced security features, security-focused skills are seeing increased usage.
More Team-Oriented Skills
With Claude Cowork's release, team skill sharing has become easier, leading to more team-customized skills.
Multi-Tool Compatibility Valued
Skills that work across Claude Code, Codex CLI, Cursor, and GitHub Copilot are gaining support.
Summary
January 2026's popular skills focus on streamlining everyday development tasks (code review, PR creation, testing).
Browse the Skills list to try these skills. Stay tuned for next month's rankings.
Related Articles
- 10 Best Agent Skills for Developers - Curated by use case
- Agent Skills Trends January 2026 - Ecosystem status
- How to Set Up Skills in Claude Code - Get started
- How to Create Your Own Skills - Learn from popular skills