Individual skill

rate-limiting-apis

Implement sophisticated rate limiting with sliding windows, token buckets, and quotas. Use when protecting APIs from excessive requests. Trigger with phrases like "add rate limiting", "limit API requests", or "implement rate limits".

skills/.curated/rate-limiting-apis/SKILL.md

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# Rate Limiting APIs

## Overview

Implement sophisticated rate limiting using sliding window, token bucket, and fixed window counter algorithms with Redis-backed distributed state. Configure per-endpoint, per-user, and per-API-key limits with tiered quotas, burst allowances, and standard response headers that communicate limit status to API consumers.

## Prerequisites

- Redis 6+ for distributed rate limit state (required for multi-instance deployments)
- Rate limiting library: `rate-limiter-flexible` (Node.js), `slowapi` (Python/FastAPI), or Bucket4j (Java)
- API key or user identification mechanism for per-consumer tracking
- Monitoring for rate limit hit rates and rejected request metrics
- Documentation system for publishing rate limit policies to API consumers

## Instructions
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