cloudflare-workers-testing SKILL.md skillA
cloudflare-workers-testing from secondsky/claude-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add secondsky/claude-skills/cloudflare-workers-testing@v1.0.0Pins v1.0.0 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/cloudflare-workers/skills/cloudflare-workers-testing/SKILL.md- Versions recorded
- 3
- Latest version
- v1.0.0, committed Aug 3, 2026
- First version recorded
- Dec 29, 2025
- Size
- 21,136 bytes
- Repository stars
- 247
- License
- MIT
Comprehensive testing guide for Cloudflare Workers using Vitest and @cloudflare/vitest-pool-workers. Use for test setup, binding mocks (D1/KV/R2/DO), integration tests, or encountering test failures, mock errors, coverage issues.
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 Testing with Vitest **Status**: ✅ Production Ready | Last Verified: 2025-01-27 **Vitest**: ^2.0.0 | **@cloudflare/vitest-pool-workers**: 0.7.2 | **Miniflare**: Latest ## Table of Contents - [What Is Workers Testing?](#what-is-workers-testing) - [New in 2025](#new-in-2025) - [Quick Start (5 Minutes)](#quick-start-5-minutes) - [Critical Rules](#critical-rules) - [Core Concepts](#core-concepts) - [Top 5 Use Cases](#top-5-use-cases) - [Best Practices](#best-practices) - [Top 8 Errors Prevented](#top-8-errors-prevented) - [When to Load References](#when-to-load-references) --- ## What Is Workers Testing? Testing Cloudflare Workers with **Vitest** and **@cloudflare/vitest-pool-workers** enables writing unit and integration tests that run in a real Workers environment with full binding support (D1, KV, R2, Durable Objects, Queues, AI). Tests execute in Miniflare for local development and can run in CI/CD with actual Workers runtime behavior. **Key capabilities**: Binding mocks, execution context testing, edge runtime simulation, coverage tracking, fast test execution. --- ## New in 2025 **@cloudflare/vitest-pool-workers 0.7.2** (January 2025): …
Read the whole file at its exact version.
How to install
mdr add secondsky/claude-skills/cloudflare-workers-testing@sha256:3dc319e7c7c5187dThe line at the top of this page pins the label v1.0.0, 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_3iql2vx7choxlw6e)
5 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 3 versions of this file, between Dec 29, 2025 and Aug 3, 2026, about one every 109 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| v1.0.0 latest | 2026-08-03 | 76d3746 | 21,136 B | A | view · diff |
| v1.0.0 | 2026-04-02 | 89c5e89 | 21,134 B | A | view · diff |
| v1.0.0 | 2025-12-29 | 0b5b897 | 21,198 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 (21136 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
secondsky/claude-skills · 247 stars · license MIT · pushed 2026-10-31 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_3iql2vx7choxlw6e GET https://markdownregistry.com/api/v1/resolve?ref=secondsky/claude-skills/cloudflare-workers-testing GET https://markdownregistry.com/api/v1/blob/3dc319e7c7c5187d595c5285710c6e0b727024a35c17b50e54257bfea964b915
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.