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Reproducing and fixing a flaky test v1.0.0

Use this resource to reproduce, fix and validate a test that fails intermittently

New

  • 485 downloads
  • 142 likes
  • 133 saves

Free

Install with the CLI

In a terminal, from the folder you want:

npx --yes palatekit@latest install flaky-test-diagnosis-fix

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 measures the failure rate in CI history, reproduces the problem locally before changing anything and looks for the root cause. It rejects workarounds such as sleeps, automatic retries or longer timeouts, then validates the fix with a repeated-run loop. You get a stable test and evidence that it is stable.

Mostly picked by

Updated November 2, 2026

Card for the “Reproducing and fixing a flaky test” skill

Details

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

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What you get

  • SKILL.md: failure-rate measurement, CI failure extraction and local reproduction
  • SKILL.md: root-cause analysis, bisection and the validation loop

Good fit for

  • A test fails in CI but passes on rerun or locally
  • CI classifies a Jest, pytest or Playwright test as flaky

Not for

    Tags

    • flaky tests
    • ci
    • debugging
    • jest
    • reliability

    About

    You say

    “This Jest test fails one run in five on CI: reproduce it locally and find the cause before touching the code.”

    Card for the “Reproducing and fixing a flaky test” skill

    Skill published by posthog 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 reproduce, fix and validate a test that fails intermittently
    3. Review and adjust the result

    Content preview

    Files

    • LICENSE1.5 KB
    • NOTICE-PALATEKIT.md0.5 KB
    • SKILL.md24.2 KB

    Origin and licence

    Listed unmodified

    Author
    posthog
    Source
    github.com/posthog/posthog/tree/fcb362bb439b15171da4dfba401bff03ea98bd2b/.agents/skills/fixing-flaky-tests
    Licence
    MIT

    Notice

    « fixing-flaky-tests » (posthog, MIT) livré dans sa version d'origine : fiche en français et en anglais par PalateKit.

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