What problem does it solve? Cloudflare Workers APIs, types, and wrangler configuration evolve constantly, so code written from stale knowledge ships with anti-patterns like floating promises, global request state, hardcoded secrets, and outdated binding access. This Skill grounds Workers authoring and code review in freshly retrieved official documentation and type definitions. ## Core Features & Use Cases - Retrieval-first workflow: Fetches the latest Workers best practices page, @cloudflare/workers-types, and the wrangler config schema before writing or reviewing any code. - Rule-based review: Checks configuration (compatibility_date, nodejs_compat, secrets, observability), request handling (streaming, waitUntil), architecture (bindings, Queues, Workflows, Hyperdrive), and security (Web Crypto, timing-safe comparisons). - Anti-pattern detection: Flags concrete issues such as await response.text() on unbounded data, destructured ctx, implements on platform base classes, and env.X misuse inside DurableObject or WorkerEntrypoint classes. - Use Case: When reviewing a pull request that adds a new Worker with KV and Queue bindings, load this Skill to validate the wrangler.jsonc config, verify binding access patterns against the latest types, and catch floating promises before merge. ## Quick Start Review my Cloudflare Worker code and wrangler.jsonc against the latest Workers best practices and flag any anti-patterns.