Development best practices, testing patterns, security analysis, and framework-specific skills to write better code with Claude Code.
Coding skills teach Claude Code development best practices, testing methodologies, security analysis techniques, and framework-specific patterns. They range from official skills like Frontend Design to security-focused skills from Trail of Bits, and include framework-specific skills for React, SwiftUI, Terraform, and more.
| Skill | Analysis Type | Tools Used | Best For |
|---|---|---|---|
| Static Analysis | Code scanning | CodeQL, Semgrep, SARIF | Finding vulnerabilities |
| Variant Analysis | Pattern matching | CodeQL patterns | Finding similar bugs |
| Secure Contracts | Smart contracts | Slither, Echidna | Blockchain security |
| Diff Review | Code review | Git history | PR security review |
| Skill | Framework | Focus Areas | Author |
|---|---|---|---|
| React Best Practices | React | Patterns, hooks, performance | Vercel Labs |
| React Native | React Native | Mobile performance | Callstack |
| SwiftUI Expert | SwiftUI | iOS 26+, Liquid Glass | AvdLee |
| Terraform | Terraform | IaC best practices | antonbabenko |
Instructs Claude to avoid "AI slop" or generic aesthetics and make bold design decisions. Works very well for React & Tailwind.
Guide for creating high-quality MCP servers to integrate external APIs and services with Claude.
Build complex claude.ai HTML artifacts using React, Tailwind CSS, and shadcn/ui components.
20+ security skills for static analysis with CodeQL/Semgrep, variant analysis, code auditing, and vulnerability detection.
Static analysis toolkit with CodeQL, Semgrep, and SARIF for finding vulnerabilities in code.
Find similar vulnerabilities via pattern-based analysis across codebases.
Smart contract security toolkit with vulnerability scanners for 6 blockchains.
Create and refine Semgrep rules for vulnerability detection.
Write tests before implementing code with TDD best practices and workflow guidance.
Methodical problem-solving in code with structured debugging workflows and root cause analysis.
Investigate and identify fundamental problems in code with systematic tracing techniques.
Design comprehensive test cases using PICT (Pairwise Independent Combinatorial Testing) for optimized test suites.
React best practices and patterns from the Vercel engineering team.
Web design guidelines and standards from Vercel's engineering team.
Performance optimization for React Native apps from Callstack.
Modern SwiftUI best practices and iOS 26+ Liquid Glass adoption guidance.
Terraform infrastructure as code best practices for AWS, GCP, and Azure.
AWS development with CDK best practices, cost optimization, and serverless/event-driven architecture patterns.
PostgreSQL best practices for Supabase including schema design, RLS, and performance optimization.
Modern Python tooling with uv, ruff, ty, and pytest best practices.
Makepad UI development skills for Rust apps: setup, patterns, shaders, packaging.
Three.js skills for creating 3D elements and interactive experiences.
Analyzes Move language packages against official Move Book Code Quality Checklist.
Clean Architecture, SOLID principles, and comprehensive software design best practices.
Stitch to React components conversion from Google Labs.