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Prompt regression tests v1.0.0

Use this resource to compare two prompt versions to catch regressions

New

  • 529 downloads
  • 245 likes
  • 151 saves

Free

Install with the CLI

In a terminal, from the folder you want:

npx --yes palatekit@latest install prompt-regression-testing-2

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 runs both versions on the same set of cases, measures differences and stability, flags answers that lose an expected element or include a forbidden one, then suggests fixes. You get a regression report before you replace a prompt in production.

Mostly picked by

Updated November 2, 2026

Card for the “Prompt regression tests” skill

Details

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

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What you get

  • SKILL.md: test case format and comparison framework
  • SKILL.md: stability metrics and breakage analysis
  • SKILL.md: fix suggestions and regression report template

Good fit for

  • You want to change a production prompt safely
  • A new version improves some cases but breaks others

Not for

    Tags

    • prompt
    • regression
    • evaluation

    About

    You say

    “Compare version 1.2 and version 1.3 of our summary prompt across all test cases and flag regressions.”

    Card for the “Prompt regression tests” skill

    Skill published by patricio0312rev 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 compare two prompt versions to catch regressions
    3. Review and adjust the result

    Content preview

    Files

    • LICENSE1.1 KB
    • NOTICE-PALATEKIT.md0.5 KB
    • SKILL.md6.3 KB

    Origin and licence

    Listed unmodified

    Author
    patricio0312rev
    Source
    github.com/patricio0312rev/skills/tree/79ea6af485698b31060b63f0066f712560757b29/ai-engineering/prompt-regression-tester
    Licence
    MIT

    Notice

    « prompt-regression-tester » (patricio0312rev, MIT) livré dans sa version d'origine : fiche en français et en anglais par PalateKit.

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