system-design

Installation
SKILL.md

System Design (Deep Workflow)

System design is structured decision-making under constraints. The output is not a diagram—it is clarity on requirements, explicit trade-offs, and a path to evolve when load and features change.

When to Offer This Workflow

Trigger conditions:

  • “Design Twitter/Instagram/WhatsApp” (interview style)
  • Greenfield service, major scale milestone, multi-region, or realtime needs
  • Refactoring monolith—boundaries and data ownership questions

Initial offer:

Use seven stages: (1) clarify requirements, (2) capacity & SLO sketch, (3) high-level architecture, (4) data model & storage, (5) APIs & traffic patterns, (6) reliability & failure modes, (7) trade-offs & evolution. Ask interview mode (time-boxed) vs real project (depth).


Stage 1: Clarify Requirements

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Apr 9, 2026
system-design from skills.volces.com