Cloudflare Durable Objects Skill 🧠

Official

Build stateful coordination applications on Cloudflare's edge platform using Durable Objects. Covers wrangler binding configuration and migrations, RPC method and alarm handler implementation, sharding strategy design, WebSocket functionality, SQLite and key-value storage within DO instances, and Vitest-based unit and integration testing with @cloudflare/vitest-pool-workers. Also reviews existing DO code against established best practices, flagging anti-patterns like global bottleneck DOs or improper concurrency blocking.

Category
Development
Source
cloudflare/skills
Added
2026-03-17

How to Use This Skill

  1. Click "View SKILL.md" to see the full skill definition
  2. Copy the contents of the SKILL.md file
  3. In Claude, go to Project Knowledge and paste the skill
  4. Start a new conversation and Claude will use the skill automatically

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