What are the best Claude Code skills to install first?

Start with skills for code review, systematic debugging, testing, frontend polish, documentation, and security checks.

How many Claude Code skills should I use?

A lean stack of 5-10 high-quality skills is usually easier to control than dozens of overlapping skills.

How does Skills Directory rank these skills?

This page surfaces relevant skills using available metadata such as source, popularity signals, and security information. Always review the skill page before installing.

Best Skills

Best Claude Code Skills

Use this page as a starting point for building a lean Claude Code skill stack. The best skills are narrow, verifiable, and safe enough to influence your development workflow.

Browse all Claude Code skills Secure skills

Indexed skills

592,677

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Claude Code

Security context

Scanned

Top matching skills

Code ReviewAPerform thorough code reviews with security, performance, and maintainability analysis. Use when user asks to review code, check for bugs, or audit a codebase.code-qualityjavascripttypescriptVotes: 0GitHub stars: 77,778
Code ReviewerAAnalyzes code diffs and files to identify bugs, security vulnerabilities (SQL injection, XSS, insecure deserialization), code smells, N+1 queries, naming issues, and architectural concerns, then produces a structured review report with prioritized, actionable feedback. Use when reviewing pull requests, conducting code quality audits, identifying refactoring opportunities, or checking for security issues. Invoke for PR reviews, code quality checks, refactoring suggestions, review code, code qu...code-qualitypythongoVotes: 0GitHub stars: 11,720
Code ReviewAReview code changes for concrete defects.ai-agentscode-reviewVotes: 0GitHub stars: 6,113
Code ReviewerAAnalyzes code diffs and files to identify bugs, security vulnerabilities, code smells, and architectural concerns, then produces a structured review report with prioritized, actionable feedback.code-qualitycode-reviewgitVotes: 0GitHub stars: 860
Code ReviewAArchitectural code reviewcode-qualitycode-reviewgitVotes: 0GitHub stars: 860
Code Quality ReviewAUnified code review skill for correctness, design, readability, security, performance, testability, accessibility, and error-handling conventions. Use when reviewing changes, enforcing quality standards, or identifying technical debt.ai-agentssecurityperformanceVotes: 0GitHub stars: 511
Code ReviewerAReviews code for security vulnerabilities, performance issues, and best practices. Use when reviewing code, performing security audits, checking for code quality, reviewing pull requests.ai-agentssqlcode-reviewVotes: 0GitHub stars: 416
Code Review ExpertAComprehensive code review expertise. Use when reviewing code, evaluating architecture, or assessing quality. Triggers on review, evaluate, assess, audit, code quality, best practices.code-qualitycode-reviewsecurityVotes: 0GitHub stars: 416
Review CodeAProvides a structured workflow for planning and executing code reviews like a senior engineer. Use when asked to review code, PRs, or plan a code review task.code-qualitytestingsecurityVotes: 0GitHub stars: 416
Code ReviewAComprehensive code review with security and performance checksdevelopmentgosqlVotes: 0GitHub stars: 376
Code QualityARev 阶段 Plugin 编排顺序 + Linus 四问 + 经验沉淀ai-agentscode-reviewgitVotes: 0GitHub stars: 188
Code ReviewerAReview code for quality, security, and best practices — read-only analysisdevelopmentcode-reviewsecurityVotes: 0GitHub stars: 123

Selection criteria

Prioritize clear trigger descriptions, maintained sources, strong security scores, useful examples, and workflows that produce verifiable outputs.

Recommended stack shape

Start with one skill each for code review, testing, debugging, frontend quality, docs, and release/deploy checks. Add niche skills only when repeated work justifies them.

Keep the stack small

More skills are not automatically better. Overlapping instructions can create drift. Install the few skills you trust and actually use.

Why security-scanned skills matter

Skills can influence agent behavior, suggest commands, include helper files, or touch code and data. Skills Directory adds security context so you can inspect risk before installing a workflow from a public repo.

See the security model

Frequently asked questions

What are the best Claude Code skills to install first?: Start with skills for code review, systematic debugging, testing, frontend polish, documentation, and security checks.
How many Claude Code skills should I use?: A lean stack of 5-10 high-quality skills is usually easier to control than dozens of overlapping skills.
How does Skills Directory rank these skills?: This page surfaces relevant skills using available metadata such as source, popularity signals, and security information. Always review the skill page before installing.