cloudflare-workers-author SKILL.md skillA
cloudflare-workers-author from d-padmanabhan/agent-engineering-handbook is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add d-padmanabhan/agent-engineering-handbook/cloudflare-workers-author@git:20260906.8d25679Pins git:20260906.8d25679 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- d-padmanabhan/agent-engineering-handbook
- Path
skills/cloudflare-workers-author/SKILL.md- Versions recorded
- 3
- Latest version
- git:20260906.8d25679, committed Sep 6, 2026
- First version recorded
- May 24, 2026
- Size
- 12,333 bytes
- Repository stars
- 20
- License
- MIT
Workflow for building production-grade Cloudflare Workers in TypeScript - bootstrap, bindings and storage choice, routing (Hono + RPC via WorkerEntrypoint), testing with @cloudflare/vitest-plugin, gradual deployments, and common pitfalls. Use when adding a new Worker, adding endpoints to an existing Worker, choosing between KV / R2 / D1 / Durable Objects / Hyperdrive, setting up testing, configuring deployment, or reviewing a Worker PR.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Cloudflare Workers Author
**Companion rule:** `401-cloudflare-workers.mdc` (file-scoped to `wrangler.{jsonc,toml,json}` and common Worker entry-point names). The rule is the **gate** (non-negotiables); this skill is the **workflow** (how to actually build the Worker).
**Voice:** opinionated. Cloudflare Workers is a small, fast platform with a specific runtime model. Most production incidents come from treating it like a generic Node.js server (top-level await, mutable module state, unbounded loops, secrets in logs, public-URL Worker-to-Worker calls). The workflow below prevents those.
---
## When to invoke this skill
Invoke when:
- The user asks to build a new Cloudflare Worker, Durable Object, Workflow, Queue consumer, Cron Trigger, Email Worker, or Pages Function.
- The user is adding routes / endpoints to an existing Worker.
- The user asks "should I use KV / D1 / R2 / DO / Hyperdrive for this?" (the bindings-and-storage decision matrix is the answer).
- The user is setting up testing for a Worker.
- The user is configuring deployment (gradual rollouts, OIDC for GitHub Actions, secret rotation).
…Read the whole file at its exact version.
How to install
mdr add d-padmanabhan/agent-engineering-handbook/cloudflare-workers-author@sha256:956a0398068bca9eThe line at the top of this page pins the label git:20260906.8d25679, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_h54vyt6exjua36xd)
5 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 3 versions of this file, between May 24, 2026 and Sep 6, 2026, about one every 53 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260906.8d25679 latest | 2026-09-06 | 8d25679 | 12,333 B | A | view · diff |
| git:20260607.cd1b06d | 2026-06-07 | cd1b06d | 12,602 B | A | view · diff |
| git:20260524.08a837a | 2026-05-24 | 08a837a | 10,975 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (12333 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
d-padmanabhan/agent-engineering-handbook · 20 stars · license MIT · pushed 2026-10-30 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_h54vyt6exjua36xd GET https://markdownregistry.com/api/v1/resolve?ref=d-padmanabhan/agent-engineering-handbook/cloudflare-workers-author GET https://markdownregistry.com/api/v1/blob/956a0398068bca9ee4a3ab40235dcfe3f163fca0bb237d9b8586cb909095cb3a
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.