Agent Skills, Instructions, Custom Prompts, etc.

Standards, directories, and examples for packaging agent skills, instructions, and custom prompts.

• Agent Skills — The closest thing we have to an industry standard for defining agent skills.
• The Agent Skills Directory (skills.sh) is the primary public registry for discoverable, installable skills. Skills listed there can be installed into any project via npx skillsadd <owner/repo> and referenced via their raw URLs.
• Caveman – An excellent example of a shareable skill, including installation scripts for multiple agents.
• Local Agent Builder – A boilerplate skill for coding assistants that scaffolds agentic workflows built on Microsoft’s Agent-Framework, with a TUI baseline, quotas, context isolation, and sub-agent delegation for resource-constrained local models.