durable-objects
Create and review Cloudflare Durable Objects. Use when building stateful coordination (chat rooms, multiplayer games, booking systems), implementing RPC methods, SQLite storage, alarms, WebSockets, or reviewing DO code for best practices. Covers Workers integration, wrangler config, and testing with Vitest. Biases towards retrieval from Cloudflare docs over pre-trained knowledge.
Profile →npx skills add cloudflare/skills --skill durable-objects --agent claude-code
Same command for any agent — swap --agent for codex, cursor, copilot.
Weekly change comes from our own snapshots, not the repository page — it measures attention, not adoption.
# Durable Objects Build stateful, coordinated applications on Cloudflare's edge using Durable Objects. ## Retrieval Sources Your knowledge of Durable Objects APIs and configuration may be outdated. **Prefer retrieval over pre-training** for any Durable Objects task. | Resource | URL | |----------|-----| | Docs | https://developers.cloudflare.com/durable-objects/ | | API Reference | https://developers.cloudflare.com/durable-objects/api/ | | Best Practices | https://developers.cloudflare.com/durable-objects/best-practices/ | | Examples | https://developers.cloudflare.com/durable-objects/examples/ | Fetch the relevant doc page when implementing features. ## When to Use - Creating new Durable Object classes for stateful coordination - Implementing RPC methods, alarms, or WebSocket handlers - Reviewing existing DO code for best practices - Configuring wrangler.jsonc/toml for DO bindings and migrations - Writing tests with `@cloudflare/vitest-pool-workers` - Designing sharding strategies and parent-child relationships ## Reference Documentation - `./references/rules.md` - Core rules, storage, concurrency, RPC, alarms - `./references/testing.md` - Vitest setup, unit/integration tests, ala
- Retrieval Sources
- When to Use
- Reference Documentation
- Core Principles
- Use Durable Objects For
- Do NOT Use For
- Quick Reference
- Wrangler Configuration
- Basic Durable Object Pattern
- Critical Rules
- Anti-Patterns (NEVER)
- Stub Creation
- Storage Operations
- Alarms
What does the durable-objects skill do?
Create and review Cloudflare Durable Objects. Use when building stateful coordination (chat rooms, multiplayer games, booking systems), implementing RPC methods, SQLite storage, alarms, WebSockets, or reviewing DO code for best practices. Covers Workers integration, wrangler config, and testing with Vitest. Biases towards retrieval from Cloudflare docs over pre-trained knowledge.
How do I install it?
Run `npx skills add cloudflare/skills --skill durable-objects --agent claude-code` — it drops the skill into your project so the agent can pick it up. Swap the --agent value for codex, cursor or copilot if you use one of those.
Where does this skill come from?
From cloudflare/skills, a repository with 2,539 stars. We read it straight from the repository tree rather than a submitted listing, so what you see here is what is actually published.
Is a popular skill a good skill?
Not necessarily. Stars measure attention, not adoption — a repository can trend for a week and be abandoned. That is why we show the weekly change from our own snapshots next to the total, instead of a single flattering number.