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@0xDarkMatter/claude-mods
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Quick reference for RESTful API design patterns, HTTP semantics, caching, and rate limiting. Triggers on: rest api, http methods, status codes, api design, endpoint design, api versioning, rate limiting, caching headers.

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SKILL.md

name rest-patterns
description Quick reference for RESTful API design patterns, HTTP semantics, caching, and rate limiting. Triggers on: rest api, http methods, status codes, api design, endpoint design, api versioning, rate limiting, caching headers.
allowed-tools Read Write

REST Patterns

Quick reference for RESTful API design patterns and HTTP semantics.

HTTP Methods

Method Purpose Idempotent Cacheable
GET Retrieve resource(s) Yes Yes
POST Create new resource No No
PUT Replace entire resource Yes No
PATCH Partial update Maybe No
DELETE Remove resource Yes No

Essential Status Codes

Code Name Use
200 OK Success with body
201 Created POST success (add Location header)
204 No Content Success, no body
400 Bad Request Invalid syntax
401 Unauthorized Not authenticated
403 Forbidden Not authorized
404 Not Found Resource doesn't exist
422 Unprocessable Validation error
429 Too Many Requests Rate limited
500 Server Error Internal failure

Resource Design

GET    /users              # List
POST   /users              # Create
GET    /users/{id}         # Get one
PUT    /users/{id}         # Replace
PATCH  /users/{id}         # Update
DELETE /users/{id}         # Delete

# Query parameters
GET /users?page=2&limit=20          # Pagination
GET /users?sort=created_at:desc     # Sorting
GET /users?role=admin               # Filtering

Security Checklist

  • HTTPS/TLS only
  • OAuth 2.0 or JWT for auth
  • Validate all inputs
  • Rate limit per client
  • CORS headers configured
  • No sensitive data in URLs
  • Use no-store for sensitive responses

Common Mistakes

Mistake Fix
Verbs in URLs /getUsers → /users
Deep nesting Flatten or use query params
200 for errors Use proper 4xx/5xx
No pagination Always paginate collections
Missing rate limits Protect against abuse

Quick Reference

Task Pattern
Paginate ?page=2&limit=20
Sort ?sort=field:asc
Filter ?status=active
Sparse fields ?fields=id,name
Include related ?include=orders

When to Use

  • Designing new API endpoints
  • Choosing HTTP methods and status codes
  • Implementing caching headers
  • Setting up rate limiting
  • Structuring error responses

Additional Resources

For detailed patterns, load:

  • ./references/status-codes.md - Complete status code reference with examples
  • ./references/caching-patterns.md - Cache-Control, ETag, CDN patterns
  • ./references/rate-limiting.md - Rate limiting strategies and headers
  • ./references/response-formats.md - Errors, versioning, bulk ops, HATEOAS