systems-design.skill

Guides distributed system design using a structured 4-step framework: scope, high-level design, deep dive, wrap-up. Two modes: CHECKER audits existing designs for missing components, wrong tradeoffs, and anti-patterns. APPLIER walks through designing systems step-by-step with clarifying questions, component selection, and scaling strategies. Covers 15 system designs (rate limiter, consistent hashing, key-value store, unique ID generator, URL shortener, web crawler, notification system, news feed, chat system, search autocomplete, YouTube, Google Drive, scaling foundations, estimation, interview framework) plus cross-cutting techniques and review checklists. Triggers on: system design, distributed system design, design a system, design a distributed, scale system, architecture review, high-level architecture, back of envelope, capacity planning, design with load balancer, database sharding strategy, caching strategy for scale, CDN architecture, message queue design, microservices system design, API system desi