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Diagnose before changing code v1.0.0

Use this resource to diagnose an ambiguous failure before editing code

New

  • 577 downloads
  • 129 likes
  • 158 saves

Free

Install with the CLI

In a terminal, from the folder you want:

npx --yes palatekit@latest install evidence-first-investigation

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 separates the observed symptom from the suspected cause, traces inputs, state transitions and boundaries, ranks hypotheses by evidence and does not touch the code until one mechanism explains the facts. The result is a demonstrated cause, with no fix unless the task asks for one.

Mostly picked by

Updated November 2, 2026

Card for the “Diagnose before changing code” 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: symptom versus cause separation and ranked hypotheses
  • agents/openai.yaml: agent configuration for the skill

Good fit for

  • An intermittent bug does not reproduce reliably
  • A performance regression has no clear cause

Not for

    Tags

    • diagnosis
    • hypotheses
    • evidence
    • regression

    About

    You say

    “The nightly job fails every other day: find the cause before proposing a fix.”

    Card for the “Diagnose before changing code” skill

    Skill published by juliusbrussee 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 diagnose an ambiguous failure before editing code
    3. Review and adjust the result

    Content preview

    Files

    • agents/openai.yaml0.2 KB
    • LICENSE11.1 KB
    • NOTICE-PALATEKIT.md0.5 KB
    • SKILL.md0.7 KB

    Origin and licence

    Listed unmodified

    Author
    juliusbrussee
    Source
    github.com/juliusbrussee/caveman/tree/9b68f7ed12b05e7efaff18e65c5a3fc2849fd0a4/skills/investigate-first
    Licence
    Apache-2.0

    Notice

    « investigate-first » (juliusbrussee, Apache-2.0) livré dans sa version d'origine : fiche en français et en anglais par PalateKit.

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