workers-best-practices

Reviews and authors Cloudflare Workers code against production best practices, biasing toward Cloudflare docs. USE WHEN writing a new Worker, reviewing Worker code, configuring wrangler.jsonc, or checking anti-patterns in streaming, floating promises, global state, secrets, bindings, or observability.

الانتقال إلى التثبيت

المستودع: Sheshiyer/skill-clusters
آخر نشاط في المصدر: ٥ يونيو ٢٠٢٦ في ١٢:٢٥
لغة SKILL.md المكتشفة: الإنجليزية
النجوم: ٠
التفرعات: ١

خيارات التثبيت

يُحدَّد Prompt الذي يراجع المصدر أولًا بشكل افتراضي. يمكنك التبديل إلى أمر مباشر أو تنزيل نسخة محلية.

التثبيت باستخدام Codex أو Claude انسخ هذا Prompt والصقه في Codex أو Claude أو مساعد آخر ليراجع صفحة Skill ويثبّتها لك.

يتجاوز الأمر المباشر Prompt المخصّص للمراجعة. افحص المصدر قبل تشغيله.

npx skills add https://github.com/Sheshiyer/skill-clusters --skill workers-best-practices

يبقى الأمر في سطر واحد. مرّر أفقيًا لمراجعته كاملًا قبل النسخ.

تفضّل نسخة محلية؟ نزّل الملفات المتاحة حاليًا لدى SkillsMP.

مراجعة ملفات المصدر

اقرأ SKILL.md وأي ملفات مرافقة يعرضها SkillsMP قبل أن تقرر التثبيت.

مستكشف الملفات

3 ملفات

SKILL.md

تعليمات المصدر · معاينة للقراءة فقط

العودة إلى البحث العودة إلى التثبيت

name	workers-best-practices
description	Reviews and authors Cloudflare Workers code against production best practices, biasing toward Cloudflare docs. USE WHEN writing a new Worker, reviewing Worker code, configuring wrangler.jsonc, or checking anti-patterns in streaming, floating promises, global state, secrets, bindings, or observability.
cluster	cloudflare
version	1.0.0

Your knowledge of Cloudflare Workers APIs, types, and configuration may be outdated.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

Rule	Summary
Compatibility date	Set `compatibility_date` to today on new projects; update periodically on existing ones
nodejs_compat	Enable the `nodejs_compat` flag — many libraries depend on Node.js built-ins
wrangler types	Run `wrangler types` to generate `Env` — never hand-write binding interfaces
Secrets	Use `wrangler secret put`, never hardcode secrets in config or source
wrangler.jsonc	Use JSONC config for non-secret settings — newer features are JSON-only

Rule	Summary
Streaming	Stream large/unknown payloads — never `await response.text()` on unbounded data
waitUntil	Use `ctx.waitUntil()` for post-response work; do not destructure `ctx`

Rule	Summary
Bindings over REST	Use in-process bindings (KV, R2, D1, Queues) — not the Cloudflare REST API
Queues & Workflows	Move async/background work off the critical path
Service bindings	Use service bindings for Worker-to-Worker calls — not public HTTP
Hyperdrive	Always use Hyperdrive for external PostgreSQL/MySQL connections

Rule	Summary
No global request state	Never store request-scoped data in module-level variables
Floating promises	Every Promise must be `await`ed, `return`ed, `void`ed, or passed to `ctx.waitUntil()`

Rule	Summary
Web Crypto	Use `crypto.randomUUID()` / `crypto.getRandomValues()` — never `Math.random()` for security
No passThroughOnException	Use explicit try/catch with structured error responses

workers-best-practices

خيارات التثبيت

مراجعة ملفات المصدر

Retrieval Sources

Retrieval Sources

FIRST: Fetch Latest References

Reference Documentation

Rules Quick Reference

Configuration

Request & Response Handling

Architecture

Observability

Code Patterns

Security

Anti-Patterns to Flag

Review Workflow

Scope

Principles

Anti-pattern	Why it matters
`await response.text()` on unbounded data	Memory exhaustion — 128 MB limit
Hardcoded secrets in source or config	Credential leak via version control
`Math.random()` for tokens/IDs	Predictable, not cryptographically secure
Bare `fetch()` without `await` or `waitUntil`	Floating promise — dropped result, swallowed error
Module-level mutable variables for request state	Cross-request data leaks, stale state, I/O errors
Cloudflare REST API from inside a Worker	Unnecessary network hop, auth overhead, added latency
`ctx.passThroughOnException()` as error handling	Hides bugs, makes debugging impossible
Hand-written `Env` interface	Drifts from actual wrangler config bindings
Direct string comparison for secret values	Timing side-channel — use `crypto.subtle.timingSafeEqual`
Destructuring `ctx` (`const { waitUntil } = ctx`)	Loses `this` binding — throws "Illegal invocation" at runtime
`any` on `Env` or handler params	Defeats type safety for all binding access
`as unknown as T` double-cast	Hides real type incompatibilities — fix the design
`implements` on platform base classes (instead of `extends`)	Legacy — loses `this.ctx`, `this.env`. Applies to DurableObject, WorkerEntrypoint, Workflow
`env.X` inside platform base class	Should be `this.env.X` in classes extending DurableObject, WorkerEntrypoint, etc.

workers-best-practices

معلومات المصدر

خيارات التثبيت

مراجعة ملفات المصدر

المزيد من هذا المستودع

Retrieval Sources

المزيد من هذا المستودع

Retrieval Sources

FIRST: Fetch Latest References

Reference Documentation

Rules Quick Reference

Configuration

Request & Response Handling

Architecture

Observability

Code Patterns

Security

Anti-Patterns to Flag

Review Workflow

Scope

Principles