Official Anthropic Agent Skills repo with document and example packs
API and Interface Design
SkillDesign APIs, module boundaries, and type contracts that are easy to use right and hard to misuse.
Clone or download it from github.com, then drop the folder into ~/.claude/skills/ (Claude Code) or your agent's skills directory.
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About API and Interface Design
From Addy Osmani's agent-skills pack.
Points the agent at the stuff that bites later: REST and GraphQL endpoint shape, contracts between modules, component props, and the line between frontend and backend. It leans on ideas like Hyrum's Law, so whatever your agent exposes today is treated as something people will depend on tomorrow.
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