addyosmani/agent-skills

Directory of reusable AI-agent skills and browser automation workflows for research, ecommerce, social/search extraction, video platforms, maps, and operational automation.

Open-source security scanner for AI agent skills from NVIDIA. Scans skills (from Git repos, URLs, zip files, or directories) for risky patterns including prompt injection, data exfiltration, privilege escalation, malicious code, supply-chain issues, and MCP tool poisoning. Uses static analysis plus optional LLM-based semantic review and can be used in CI/CD or as an MCP server.

Product-management skills marketplace for Claude Code and Claude Cowork, providing PM skills and chained workflows across discovery, strategy, execution, launch, growth, and shipping AI-built code.

Official skills repository for OpenAI GPT models, providing reusable tools and extensions for OpenAI's AI assistants

Community-driven skills registry and marketplace for AI assistants, providing a curated collection of reusable skills for various AI platforms including Claude Code, OpenAI GPT, and other LLM assistants, with download usage statistics and trending popularity rankings for all skills

Google's agent-first AI coding platform built around Gemini 3, the successor to Gemini CLI. Delivered as a heavily modified VS Code-based IDE (Editor and Manager views, built-in browser/terminal) and also supports terminal interaction via the `gemini` CLI. Features autonomous agents with multi-step edit/run/verify capabilities and verifiable Artifacts (plans, screenshots, recordings). Also supports Claude 5 (Fable), Claude Sonnet 4.6, Claude Opus 4.6, and GPT-OSS-120B. Intro