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Validate at every layer: make the bug impossible v1.0.0

Use this resource to validate data at every layer of the code to make a bug structurally impossible

New

  • 389 downloads
  • 224 likes
  • 181 saves

Free

Install with the CLI

In a terminal, from the folder you want:

npx --yes palatekit@latest install layered-input-validation-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 adds checks at the entry point, in business logic, in environment guards and in debug instrumentation. You get code where one forgotten check is no longer enough to let the bug through.

Mostly picked by

Updated November 2, 2026

Card for the “Validate at every layer: make the bug impossible” skill

Details

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

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What you get

  • SKILL.md: the four layers, from entry point to debugging
  • SKILL.md: method for applying the pattern to a real bug

Good fit for

  • A data bug was fixed in only one place
  • Several code paths accept the same invalid data

Not for

    Tags

    • validation
    • data
    • robustness
    • debugging

    About

    You say

    “A bug came from an invalid date: add checks at every layer it passes through.”

    Card for the “Validate at every layer: make the bug impossible” skill

    Skill published by obra 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 validate data at every layer of the code to make a bug structurally impossible
    3. Review and adjust the result

    Content preview

    Files

    • LICENSE1.1 KB
    • NOTICE-PALATEKIT.md0.5 KB
    • SKILL.md4 KB

    Origin and licence

    Listed unmodified

    Author
    obra
    Source
    github.com/obra/superpowers-skills/tree/cdcd624ad3fd8026deb692e565351854569798dd/skills/debugging/defense-in-depth
    Licence
    MIT

    Notice

    « Defense-in-Depth Validation » (obra, MIT) livré dans sa version d'origine : fiche en français et en anglais par PalateKit.

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