The Agent Skills Marketplace offers a vast collection of over 214,000 open-source skills designed for AI coding assistants like Claude and OpenAI Codex. Users can search these skills using AI-powered semantics or keywords, and they can filter results by category or popularity. The marketplace streamlines the process of finding suitable skills from various GitHub repositories, making it easier for developers, team leads, and hobbyists to access modular capabilities that enhance their AI tools. Skills in the marketplace are structured according to the SKILL.md standard, which was established by Anthropic and adopted by OpenAI. Each skill typically consists of a SKILL.md file with instructions, along with optional scripts and templates. Users can also create and share their own skills, fostering a community-driven environment. The platform employs quality filters to weed out low-quality repositories, ensuring that only those with at least two stars are included. The marketplace features skills organized into categories like Development, Data & AI, Business, and DevOps, among others. For example, the Development category alone has over 51,000 skills available. Users can browse up to the top 5,000 skills at a time or conduct an AI search for more specific results. The FAQ section addresses common concerns, such as safety—emphasizing that while skills are vetted, users should still review code before installation.