api-designer SKILL.md skillA
api-designer from athola/skrills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add athola/skrills/api-designer@git:20260106.0e498e9Pins git:20260106.0e498e9 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- athola/skrills
- Path
assets/demo-skills/api-designer/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260106.0e498e9, committed Jan 6, 2026
- Size
- 1,221 bytes
- Repository stars
- 69
- License
- MIT
Design RESTful APIs with best practices for consistency and usability.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# API Designer Expert guidance for designing clean, consistent REST APIs. ## REST Principles - Use nouns for resources, verbs for actions - Follow HTTP method semantics (GET, POST, PUT, DELETE) - Return appropriate status codes - Support content negotiation ## URL Design - Use plural nouns for collections (/users, /posts) - Nest resources logically (/users/123/posts) - Use query parameters for filtering and pagination - Keep URLs readable and predictable ## Response Format - Use consistent JSON structure - Include metadata for collections (total, page, etc.) - Provide helpful error messages - Support partial responses when needed ## Versioning - Include version in URL or header - Maintain backward compatibility - Document breaking changes clearly - Deprecate gracefully with notice periods ## Security - Use HTTPS everywhere - Implement proper authentication - Validate all inputs - Rate limit API endpoints - Log security-relevant events ## Documentation - Provide OpenAPI/Swagger specs - Include request/response examples - Document error codes and meanings - Keep docs updated with changes
Read the whole file at its exact version.
How to install
mdr add athola/skrills/api-designer@sha256:992f236c6ab862e6The line at the top of this page pins the label git:20260106.0e498e9, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_33lyeu3cyps7kkyj)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Jan 6, 2026.
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (1221 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
athola/skrills · 69 stars · license MIT · pushed 2026-10-31 · branch master
API
GET https://markdownregistry.com/api/v1/artifacts/art_33lyeu3cyps7kkyj GET https://markdownregistry.com/api/v1/resolve?ref=athola/skrills/api-designer GET https://markdownregistry.com/api/v1/blob/992f236c6ab862e63070912a2d3eabe4bbc007249be999e33678abb64baf1e35
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.