This is a solid foundation for anyone designing REST or GraphQL APIs from scratch or cleaning up existing ones. It walks you through the core decisions: picking an API style, modeling resources, handling errors, versioning, and auth. The implementation playbook promises checklists and templates, which should save you from reinventing pagination schemes for the hundredth time. Best used when you're early in the design phase and can still make structural choices. If your API is already public and locked in, or you just need framework-specific code examples, this won't help much. It's more about principles and consistency than hands-on implementation.
npx skills add https://github.com/sickn33/antigravity-awesome-skills --skill api-design-principles