workers-best-practices

Your knowledge of Cloudflare Workers APIs, types, and configuration may be outdated. **Prefer retrieval over pre-training** for any Workers code task — writing or reviewing. ## Retrieval Sources Fetch the **latest** versions before writing or reviewing Workers code. Do not rely on baked-in knowledge for API signatures, config fields, or binding shapes. | Source | How to retrieve | Use for | |--------|----------------|---------| | Workers best practices | Fetch `https://developers.cloudflare.com/workers/best-practices/workers-best-practices/` | Canonical rules, patterns, anti-patterns | | Workers types | See `references/review.md` for retrieval steps | API signatures, handler types, binding types | | Wrangler config schema | `node_modules/wrangler/config-schema.json` | Config fields, binding shapes, allowed values | | Cloudflare docs | Search tool or `https://developers.cloudflare.com/workers/` | API reference, compatibility dates/flags | ## FIRST: Fetch Latest References Before reviewing or writing Workers code, retrieve the current best practices page and relevant type definitions. If the project's `node_modules` has an older version, **prefer the latest published version**. ```bash # Fetch latest workers types mkdir -p /tmp/workers-types-latest && \ npm pack @cloudflare/workers-types --pack-destination /tmp/workers-types-latest && \ tar -xzf /tmp/workers-types-latest/cloudflare-workers-types-*.tgz -C /tmp/workers-types-latest # Types at /tmp/workers-types-latest/p...