Agent Skills

Agent Skills are an open standard for packaging modular, reusable AI agent capabilities as self-contained directories, enabling agents to perform specialized, context-aware tasks on demand.

Agent Skills define modular, reusable AI agent capabilities. Developed by Anthropic and published as an open standard in December 2025, a skill is essentially a folder containing a `SKILL.md` file with metadata and instructions. These skills equip AI agents, like Claude Code or Google Gemini CLI, with domain-specific expertise and repeatable workflows. Instead of relying on bloated prompts, agents dynamically load skill instructions and resources (scripts, templates, reference materials) only when a task demands them, optimizing performance and consistency across various AI platforms. This approach transforms general-purpose agents into specialists, allowing for the capture and sharing of procedural knowledge across teams without requiring code changes.

https://www.agentskills.org