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Gap: Rate Limiting Implementation Details

Status: 🔴 Not Started Priority: Important (Pre-Scale) Estimated Effort: 1 day

What's Missing

Complete rate limiting documentation including:

  • Rate Limit Configuration

    • Limits per endpoint (exists in RBAC doc)
    • Sliding window vs. fixed window
    • Per-user vs. per-IP vs. per-org
    • Burst allowances
  • Response Headers

    • X-RateLimit-Limit
    • X-RateLimit-Remaining
    • X-RateLimit-Reset
    • Retry-After on 429 responses
  • Client Guidance

    • Recommended retry strategies
    • Exponential backoff examples
    • Rate limit monitoring from client side
  • Implementation

    • Redis-based rate limiting
    • Middleware implementation
    • Key structure
    • Cleanup/expiration
  • Exemptions

    • Superadmin bypass
    • Webhook delivery exemptions
    • Health check exemptions

Why Important

  1. API Stability - Prevent abuse
  2. Fair Usage - Ensure all users get fair access
  3. Cost Control - Prevent runaway usage
  4. Client Experience - Clients need to handle rate limits properly

Current State

  • Rate limits mentioned in RBAC doc
  • Redis used for rate limiting
  • No headers documented
  • No client retry guidance

docs/api/rate-limiting.md

Success Criteria

  • [ ] Complete rate limit configuration documented
  • [ ] Response headers specified
  • [ ] Client retry guidance provided
  • [ ] Implementation details documented
  • [ ] Exemption rules defined