Skills real projects publish on GitHub, most starred first. Each one says what it will make an agent do before you copy it.
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royaluniondesign-sysSkillroyaluniondesign-sys/claude-os/.claude/skills/api-design/SKILL.md
REST API design patterns including resource naming, status codes, pagination, filtering, error responses, versioning, and rate limiting for production APIs.
Often used witheverything-claude-codeeverything-claude-code-conventionsnextjs-turbopack
royaluniondesign-sysSkillroyaluniondesign-sys/claude-os/.claude/skills/article-writing/SKILL.md
Write articles, guides, blog posts, tutorials, newsletter issues, and other long-form content in a distinctive voice derived from supplied examples or brand guidance. Use when the user wants polished written content longer than a paragraph, especially when voice consistency, structure, and credibility matter.
Steady32 mentions in 2 weeks
52 projects use a version of this
Often used withbun-runtimeeverything-claude-code-conventionsagent-sort
royaluniondesign-sysReads credentialsSkillroyaluniondesign-sys/claude-os/.claude/skills/backend-patterns/SKILL.md
Backend architecture patterns, API design, database optimization, and server-side best practices for Node.js, Express, and Next.js API routes.
Often used witheverything-claude-codeeverything-claude-code-conventionsagent-sort
royaluniondesign-sysReads credentialsSkillroyaluniondesign-sys/claude-os/.claude/skills/clickhouse-io/SKILL.md
ClickHouse database patterns, query optimization, analytics, and data engineering best practices for high-performance analytical workloads.
Often used withcontinuous-learning-v2iterative-retrievalpostgres-patterns
royaluniondesign-sysSkillroyaluniondesign-sys/claude-os/.claude/skills/coding-standards/SKILL.md
Universal coding standards, best practices, and patterns for TypeScript, JavaScript, React, and Node.js development.
Often used witheverything-claude-codeeverything-claude-code-conventionsagent-sort
royaluniondesign-sysDeletes or force-pushesSkillroyaluniondesign-sys/claude-os/.claude/skills/configure-ecc/SKILL.md
Interactive installer for Everything Claude Code — guides users through selecting and installing skills and rules to user-level or project-level directories, verifies paths, and optionally optimizes installed files.
Often used withralphinho-rfc-pipelinenuxt4-patternspytorch-patterns
royaluniondesign-sysSkillroyaluniondesign-sys/claude-os/.claude/skills/content-engine/SKILL.md
Create platform-native content systems for X, LinkedIn, TikTok, YouTube, newsletters, and repurposed multi-platform campaigns. Use when the user wants social posts, threads, scripts, content calendars, or one source asset adapted cleanly across platforms.
Steady32 mentions in 2 weeks
53 projects use a version of this
Often used withbrand-discoveryagent-sortralphinho-rfc-pipeline
royaluniondesign-sysSkillroyaluniondesign-sys/claude-os/.claude/skills/content-hash-cache-pattern/SKILL.md
Cache expensive file processing results using SHA-256 content hashes — path-independent, auto-invalidating, with service layer separation.
Often used withralphinho-rfc-pipelinenuxt4-patternsagent-payment-x402
royaluniondesign-sysSkillroyaluniondesign-sys/claude-os/.claude/skills/continuous-learning/SKILL.md
Automatically extract reusable patterns from Claude Code sessions and save them as learned skills for future use.
Often used withproject-guidelines-examplecontinuous-learning-v2iterative-retrieval
royaluniondesign-sysSkillroyaluniondesign-sys/claude-os/.claude/skills/continuous-learning-v2/SKILL.md
Instinct-based learning system that observes sessions via hooks, creates atomic instincts with confidence scoring, and evolves them into skills/commands/agents.
royaluniondesign-sysSkillroyaluniondesign-sys/claude-os/.claude/skills/cost-aware-llm-pipeline/SKILL.md
Cost optimization patterns for LLM API usage — model routing by task complexity, budget tracking, retry logic, and prompt caching.
royaluniondesign-sysSkillroyaluniondesign-sys/claude-os/.claude/skills/cpp-coding-standards/SKILL.md
C++ coding standards based on the C++ Core Guidelines (isocpp.github.io). Use when writing, reviewing, or refactoring C++ code to enforce modern, safe, and idiomatic practices.
Often used withagent-payment-x402nuxt4-patternsralphinho-rfc-pipeline
royaluniondesign-sysSkillroyaluniondesign-sys/claude-os/.claude/skills/cpp-testing/SKILL.md
Use only when writing/updating/fixing C++ tests, configuring GoogleTest/CTest, diagnosing failing or flaky tests, or adding coverage/sanitizers.
royaluniondesign-sysSkillroyaluniondesign-sys/claude-os/.claude/skills/database-migrations/SKILL.md
Database migration best practices for schema changes, data migrations, rollbacks, and zero-downtime deployments across PostgreSQL, MySQL, and common ORMs (Prisma, Drizzle, Django, TypeORM, golang-migrate).
Often used withpostgres-patternsbackend-patternse2e-testing
royaluniondesign-sysReads credentialsSkillroyaluniondesign-sys/claude-os/.claude/skills/deployment-patterns/SKILL.md
Deployment workflows, CI/CD pipeline patterns, Docker containerization, health checks, rollback strategies, and production readiness checklists for web applications.
Often used withralphinho-rfc-pipelinenuxt4-patternsdart-flutter-patterns
royaluniondesign-sysReads credentialsSkillroyaluniondesign-sys/claude-os/.claude/skills/django-patterns/SKILL.md
Django architecture patterns, REST API design with DRF, ORM best practices, caching, signals, middleware, and production-grade Django apps.
Often used withdjango-tdddocker-patternstdd-workflow
royaluniondesign-sysReads credentialsSkillroyaluniondesign-sys/claude-os/.claude/skills/django-security/SKILL.md
Django security best practices, authentication, authorization, CSRF protection, SQL injection prevention, XSS prevention, and secure deployment configurations.
Often used withnuxt4-patternsdefi-amm-securityagent-payment-x402
royaluniondesign-sysSkillroyaluniondesign-sys/claude-os/.claude/skills/django-tdd/SKILL.md
Django testing strategies with pytest-django, TDD methodology, factory_boy, mocking, coverage, and testing Django REST Framework APIs.
royaluniondesign-sysReads credentialsSkillroyaluniondesign-sys/claude-os/.claude/skills/django-verification/SKILL.md
Verification loop for Django projects: migrations, linting, tests with coverage, security scans, and deployment readiness checks before release or PR.
Often used withspringboot-tddralphinho-rfc-pipelinecontinuous-agent-loop
royaluniondesign-sysReads credentialsSkillroyaluniondesign-sys/claude-os/.claude/skills/docker-patterns/SKILL.md
Docker and Docker Compose patterns for local development, container security, networking, volume strategies, and multi-service orchestration.
Often used withralphinho-rfc-pipelinepytorch-patternsnuxt4-patterns
A folder with a SKILL.md file: a name, a description of when to use it, and instructions. Claude loads a skill only when the task matches its description.
Copy the folder into your project's .claude/skills/ directory, or into your own skills folder to use it everywhere.
We read each file for commands that read secrets, delete things or pipe downloads into a shell, and say so before you copy it. No warning is not a promise that a file is safe.
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