msw SKILL.md skillA

msw from kriscard/skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add kriscard/skills/msw@git:20261027.123ff31

Pins git:20261027.123ff31 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
kriscard/skills
Path
skills/dev/msw/SKILL.md
Versions recorded
1
Latest version
git:20261027.123ff31, committed Oct 27, 2026
Size
5,948 bytes
Repository stars
15
License
MIT

Version-aware Mock Service Worker (MSW) guidance. Use when the task is to configure MSW in Node or a browser, write or fix MSW HTTP or GraphQL handlers and responses, validate request contracts through MSW behavior, control worker/server lifecycle and unhandled requests, diagnose MSW interception or matching, apply passthrough or bypass behavior, isolate concurrent MSW handlers, or migrate between MSW major versions.

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

# Mock Service Worker

Treat MSW as the network boundary, not as the owner of the test runner, UI waiting strategy, or
client cache.

## Workflow

### 1. Detect the installed contract

Inspect manifests, lockfiles, package-manager output, imports, and `node_modules/msw/package.json`
when available. Record the exact MSW version, its `engines` and peer requirements, module system,
test runner, and whether interception runs in Node, a browser, or both.

Do not infer syntax from "MSW" alone. Classify the installed major before editing:

- v1 uses `rest`, `(req, res, ctx)`, and response composition;
- v2 uses Fetch API request/response primitives and `HttpResponse`, with most handlers and utilities
  exported from `msw`;
- v3 moves handlers and utilities to designated entrypoints, makes GraphQL link-first, and renames
  unhandled-request configuration.

**Complete when:** the exact package contract and every affected runtime are known.

### 2. Trace ownership

Identify the real outgoing request, method, resolved URL, body, headers, and GraphQL operation. Name
which layer owns each concern:

- MSW owns interception, matching, mocked network outcomes, request-contract simulation, and
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add kriscard/skills/msw@sha256:ee367946dedc75f0

The line at the top of this page pins the label git:20261027.123ff31, 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_qnbjdb4xps4byyu5.svg)](https://markdownregistry.com/a/art_qnbjdb4xps4byyu5)

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

Versions

The registry has recorded 1 version of this file, committed on Oct 27, 2026.

versioncommittedcommitsizeaudit
git:20261027.123ff31 latest2026-10-27 123ff31 5,948 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 (5948 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

kriscard/skills · 15 stars · license MIT · pushed 2026-10-28 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_qnbjdb4xps4byyu5
GET https://markdownregistry.com/api/v1/resolve?ref=kriscard/skills/msw
GET https://markdownregistry.com/api/v1/blob/ee367946dedc75f061a38290c721271a0852b2eddf91e051fe2322be20631335

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.

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Every file in kriscard/skills

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