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Hardening code at trust boundaries v1.0.0

Use this resource to harden code that receives untrusted input or handles sensitive data

New

  • 531 downloads
  • 139 likes
  • 214 saves

Free

Install with the CLI

In a terminal, from the folder you want:

npx --yes palatekit@latest install security-hardening-boundaries

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 builds security in while writing the code, not after: validating data at system boundaries, prudent defaults, and careful storage of sensitive data. Sensitive changes, such as authentication or file uploads, are flagged for human approval before implementation.

Mostly picked by

Updated November 2, 2026

Card for the “Hardening code at trust boundaries” skill

Details

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

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What you get

  • SKILL.md: boundary validation and defaults that are easy to forget
  • SKILL.md: list of changes that need human approval (auth, uploads, CORS)

Good fit for

  • You add a file upload form or an external API integration
  • You change authentication or personal data handling

Not for

    Tags

    • security
    • validation
    • inputs
    • hardening

    About

    You say

    “Harden the sign-up form and the handling of files users upload.”

    Card for the “Hardening code at trust boundaries” skill

    Skill published by helderberto 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 harden code that receives untrusted input or handles sensitive data
    3. Review and adjust the result

    Content preview

    Files

    • LICENSE1.1 KB
    • NOTICE-PALATEKIT.md0.5 KB
    • SKILL.md3.3 KB

    Origin and licence

    Listed unmodified

    Author
    helderberto
    Source
    github.com/helderberto/agent-skills/tree/ced546848ec8eea8541e77b7aa041207b607462e/skills/harden
    Licence
    MIT

    Notice

    « harden » (helderberto, MIT) livré dans sa version d'origine : fiche en français et en anglais par PalateKit.

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