bun-cloudflare-workers SKILL.md skillA

bun-cloudflare-workers from secondsky/claude-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add secondsky/claude-skills/bun-cloudflare-workers@git:20260803.689014f

Pins git:20260803.689014f in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
secondsky/claude-skills
Path
plugins/bun/skills/bun-cloudflare-workers/SKILL.md
Versions recorded
5
Latest version
git:20260803.689014f, committed Aug 3, 2026
First version recorded
Apr 2, 2026
Size
9,256 bytes
Repository stars
247
License
MIT

This skill should be used when the user asks about "Cloudflare Workers with Bun", "deploying Bun to Workers", "wrangler with Bun", "edge deployment", "Bun to Cloudflare", or building and deploying applications to Cloudflare Workers using Bun.

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

# Bun Cloudflare Workers

Build and deploy Cloudflare Workers using Bun for development.

## Quick Start

```bash
# Create new Workers project
bunx create-cloudflare my-worker
cd my-worker

# Install dependencies
bun install

# Development
bun run dev

# Deploy
bun run deploy
```

## Secure Installation

Scaffolding tools like `bunx create-cloudflare` download and execute remote code. Before running, follow supply chain security best practices:

- **Block post-install scripts** — Bun disables them by default; allow specific packages via `trustedDependencies` in `package.json`
- **Cooldown period** — Configure `minimumReleaseAge` in `bunfig.toml` to wait 7 days for new versions
- **Audit before installing** — Run `socket package score npm <pkg>` or use `socket npm install <pkg>` to check packages

Load the `dependency-upgrade` skill for full security configuration including Socket CLI integration, cooldown setup, lockfile validation, and CI enforcement.

## Project Setup

### package.json

```json
{
  "scripts": {
    "dev": "wrangler dev",
    "deploy": "wrangler deploy",
    "build": "bun build src/index.ts --outdir=dist --target=browser"
  },
  "devDependencies": {
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add secondsky/claude-skills/bun-cloudflare-workers@sha256:db2ced612aebf6ff

The line at the top of this page pins the label git:20260803.689014f, 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.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_6gm5f3my5ltzjytb.svg)](https://markdownregistry.com/a/art_6gm5f3my5ltzjytb)

4 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 5 versions of this file, between Apr 2, 2026 and Aug 3, 2026, about one every 31 days.

versioncommittedcommitsizeaudit
git:20260803.689014f latest2026-08-03 689014f 9,256 BA view · diff
git:20260719.b492b152026-07-19 b492b15 9,256 BA view · diff
git:20260514.120edd62026-05-14 120edd6 9,035 BA view · diff
git:20260402.75421fa2026-04-02 75421fa 8,343 BA view · diff
git:20260402.89c5e892026-04-02 89c5e89 8,330 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (9256 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

GitHub

secondsky/claude-skills · 247 stars · license MIT · pushed 2026-10-31 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_6gm5f3my5ltzjytb
GET https://markdownregistry.com/api/v1/resolve?ref=secondsky/claude-skills/bun-cloudflare-workers
GET https://markdownregistry.com/api/v1/blob/db2ced612aebf6ff1a72b2635bd68fc3459997c777f8cc7b20fb72541f7efa11

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.

More from secondsky/claude-skills

AGENTS.md AGENTS.md file
secondsky/claude-skills · AGENTS.md
git:20260829.7ecf025 · audit A · 247 stars
CLAUDE.md CLAUDE.md file
secondsky/claude-skills · CLAUDE.md
git:20260917.a0994f7 · audit A · 247 stars
aceternity-ui SKILL.md skill
secondsky/claude-skills · plugins/aceternity-ui/skills/aceternity-ui/SKILL.md · 100+ animated React components (Aceternity UI) for Next.js with Tailwind. Use for hero sections, parallax, 3D effects…
v1.1.0 · audit A · 247 stars
api-authentication SKILL.md skill
secondsky/claude-skills · plugins/api-authentication/skills/api-authentication/SKILL.md · Secure API authentication with JWT, OAuth 2.0, API keys. Use for authentication systems, third-party integrations…
git:20260402.75421fa · audit A · 247 stars
api-changelog-versioning SKILL.md skill
secondsky/claude-skills · plugins/api-changelog-versioning/skills/api-changelog-versioning/SKILL.md · Creates comprehensive API changelogs documenting breaking changes, deprecations, and migration strategies for API…
git:20260402.75421fa · audit A · 247 stars
api-contract-testing SKILL.md skill
secondsky/claude-skills · plugins/api-contract-testing/skills/api-contract-testing/SKILL.md · Verifies API contracts between services using consumer-driven contracts, schema validation, and tools like Pact. Use…
git:20260402.75421fa · audit A · 247 stars
api-design-principles SKILL.md skill
secondsky/claude-skills · plugins/api-design-principles/skills/api-design-principles/SKILL.md · Master REST and GraphQL API design principles to build intuitive, scalable, and maintainable APIs that delight…
git:20260402.75421fa · audit A · 247 stars
api-error-handling SKILL.md skill
secondsky/claude-skills · plugins/api-error-handling/skills/api-error-handling/SKILL.md · Implements standardized API error responses with proper status codes, logging, and user-friendly messages. Use when…
git:20260402.75421fa · audit A · 247 stars
api-filtering-sorting SKILL.md skill
secondsky/claude-skills · plugins/api-filtering-sorting/skills/api-filtering-sorting/SKILL.md · Builds flexible API filtering and sorting systems with query parameter parsing, validation, and security. Use when…
git:20260402.75421fa · audit A · 247 stars
api-gateway-configuration SKILL.md skill
secondsky/claude-skills · plugins/api-gateway-configuration/skills/api-gateway-configuration/SKILL.md · Configures API gateways for routing, authentication, rate limiting, and request transformation in microservice…
git:20260402.75421fa · audit A · 247 stars
api-pagination SKILL.md skill
secondsky/claude-skills · plugins/api-pagination/skills/api-pagination/SKILL.md · Implements efficient API pagination using offset, cursor, and keyset strategies for large datasets. Use when building…
git:20260402.75421fa · audit A · 247 stars
api-rate-limiting SKILL.md skill
secondsky/claude-skills · plugins/api-rate-limiting/skills/api-rate-limiting/SKILL.md · Implements API rate limiting using token bucket, sliding window, and Redis-based algorithms to protect against abuse…
git:20260402.75421fa · audit A · 247 stars

Every file in secondsky/claude-skills

Browse by kind, by grade A, or by owner.