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Turning a failing trace into a regression test v1.0.0

Use this resource to turn a failing trace into a regression test in Opik

New

  • 460 downloads
  • 247 likes
  • 118 saves

Free

Install with the CLI

In a terminal, from the folder you want:

npx --yes palatekit@latest install failing-trace-regression-test

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 reads the failing trace, extracts the input and expected output, and writes one or two binary assertions that would fail on the bad trace. It stores the case in a suite scoped to the project and reads it back to confirm.

Mostly picked by

Updated November 2, 2026

Card for the “Turning a failing trace into a regression test” skill

Details

Works in
Install guides
Generates with
Your agent's model
Licence
Apache-2.0

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What you get

  • SKILL.md: method for capturing a case, from trace to assertion
  • SKILL.md: deduplication rules before inserting into the suite

Good fit for

  • A production error must be covered by a test before the fix
  • You want a bug not to come back after a fix

Not for

    Tags

    • opik
    • test
    • trace
    • regression
    • assertion

    About

    You say

    “Turn this trace, where the agent gave a wrong delivery date, into a regression test.”

    Card for the “Turning a failing trace into a regression test” skill

    Skill published by comet-ml under the Apache-2.0 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 turn a failing trace into a regression test in Opik
    3. Review and adjust the result

    Content preview

    Files

    • LICENSE11.1 KB
    • NOTICE-PALATEKIT.md0.5 KB
    • SKILL.md11 KB

    Origin and licence

    Listed unmodified

    Author
    comet-ml
    Source
    github.com/comet-ml/opik-skills/tree/f0fb8b9e6439c71e8ab88f1643bcf52ef68173c5/skills/opik-test
    Licence
    Apache-2.0

    Notice

    « opik-test » (comet-ml, Apache-2.0) livré dans sa version d'origine : fiche en français et en anglais par PalateKit.

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