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Mock APIs with MSW v1.0.0

Use this resource to set up MSW and write request handlers for tests

New

  • 516 downloads
  • 233 likes
  • 246 saves

Free

Install with the CLI

In a terminal, from the folder you want:

npx --yes palatekit@latest install msw-api-mocking-tests

With no option, the skill goes to ~/.agents/skills/; add --agent claude-code (or codex, cursor…) to target an agent.

First time: connect the CLI with

npx --yes palatekit@latest login

The agent applies 45 MSW v2 rules ranked by impact: initialisation, handler architecture, test integration, request matching and debugging. You get reliable HTTP mocks and tests that also cover error cases.

Mostly picked by

Updated November 2, 2026

Card for the “Mock APIs with MSW” skill

Details

Works in
Install guides
Generates with
Your agent's model
Licence
MIT

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What you get

  • AGENTS.md: rules by category, ranked by priority
  • references/debug-common-issues.md: common issues and fixes
  • references/advanced-cookies-auth.md: cookies and authentication in mocks

Good fit for

  • Your tests call a real API and become flaky
  • You want to simulate network or server errors in tests

Not for

    Tags

    • msw
    • mocking
    • tests
    • api

    About

    You say

    “Set up MSW to mock our orders API in Vitest.”

    Card for the “Mock APIs with MSW” skill

    Skill published by pproenca under the MIT license, delivered in its original version.

    Show more

    How to use it

    1. Install the skill in your agent's skills folder
    2. Ask your agent to set up MSW and write request handlers for tests
    3. Review and adjust the result

    Content preview

    Files

    • AGENTS.md9.6 KB
    • assets/templates/_template.md0.6 KB
    • LICENSE1.1 KB
    • metadata.json0.8 KB
    • NOTICE-PALATEKIT.md0.4 KB
    • README.md4.7 KB
    • references/_sections.md1.9 KB
    • references/advanced-bypass-requests.md2.3 KB
    • references/advanced-cookies-auth.md2.9 KB
    • references/advanced-dynamic-scenarios.md2.9 KB
    • references/advanced-file-uploads.md2.8 KB
    • references/advanced-vitest-browser.md2.4 KB
    • references/debug-common-issues.md2.1 KB
    • references/debug-lifecycle-events.md2.4 KB
    • references/debug-request-logging.md3.1 KB
    • references/debug-verify-interception.md2.6 KB
    • references/graphql-batched-queries.md2.6 KB
    • references/graphql-error-responses.md2.8 KB
    • references/graphql-operation-handlers.md2.4 KB
    • references/graphql-variables-access.md3 KB
    • references/handler-absolute-urls.md1.9 KB
    • references/handler-domain-grouping.md2.4 KB
    • references/handler-happy-path-first.md2 KB
    • references/handler-request-body-parsing.md2.1 KB
    • references/handler-resolver-argument.md2.3 KB
    • references/handler-reusability-environments.md2.3 KB
    • references/handler-shared-resolvers.md2.7 KB
    • references/handler-v2-response-syntax.md2.1 KB
    • references/match-custom-predicate.md2.5 KB
    • references/match-handler-order.md2.5 KB
    • references/match-http-methods.md2.7 KB
    • references/match-query-params.md2.5 KB
    • references/match-url-patterns.md2.2 KB
    • references/response-custom-headers.md2.9 KB
    • references/response-delay-realistic.md2.6 KB
    • references/response-error-simulation.md2.6 KB
    • references/response-http-response-helpers.md2.3 KB
    • references/response-one-time-handlers.md2.8 KB
    • references/response-streaming.md3.1 KB
    • references/setup-lifecycle-hooks.md1.7 KB
    • references/setup-node-version.md1.4 KB
    • references/setup-server-node-entrypoint.md1.3 KB
    • references/setup-typescript-config.md1.8 KB
    • references/setup-unhandled-requests.md2 KB
    • references/setup-worker-script-commit.md1.6 KB
    • references/test-async-utilities.md2.3 KB
    • references/test-avoid-request-assertions.md2.6 KB
    • references/test-clear-request-cache.md2.3 KB
    • references/test-concurrent-boundary.md2.5 KB
    • references/test-fake-timers-config.md2.2 KB
    • references/test-jsdom-environment.md1.8 KB
    • references/test-reset-handlers.md1.8 KB
    • SKILL.md5.3 KB

    Origin and licence

    Listed unmodified

    Author
    pproenca
    Source
    github.com/pproenca/dot-skills/tree/cf93c57cac89d6fc3e4194686000411567f5caf3/skills/.curated/msw
    Licence
    MIT

    Notice

    « msw » (pproenca, MIT) livré dans sa version d'origine : fiche en français et en anglais par PalateKit.

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