Claude Skills Collection

A massive open-source collection of 192 production-ready skills and plugins that work across 11 AI coding agents — not just Claude Code, but also Codex, Gemini CLI, Cursor, Aider, Windsurf, and more. The collection spans 9 domains: engineering (58 skills), marketing (43 skills), C-level advisory (28 skills), product management (12 skills), regulatory compliance (12 skills), project management (6 skills), business growth (4 skills), and finance (2 skills). The engineering package alone includes 25 advanced 'POWERFUL Tier' skills: agent designer, RAG architect, database designer, CI/CD builder, MCP server builder, PR reviewer, performance profiler, and more. The marketing package covers content creation, SEO, CRO, growth hacking, and competitive intelligence with 32 Python CLI tools included. Installation supports Claude Code's plugin marketplace, manual clone, or automated conversion scripts for any supported tool. All 254 bundled Python tools are stdlib-only — zero pip dependencies. A built-in Security Auditor skill scans other skills for malicious code before installation, returning PASS/WARN/FAIL status. The collection also ships 3 pre-configured personas (Startup CTO, Growth Marketer, Solo Founder) and 4 orchestration patterns for coordinating skills across complex workflows.