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Secure and defensive coding practices v1.0.0

Use this resource to write secure code for authentication, inputs and sensitive data

New

  • 411 downloads
  • 230 likes
  • 130 saves

Free

Install with the CLI

In a terminal, from the folder you want:

npx --yes palatekit@latest install secure-coding-defensive-practices

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 applies defense in depth, least privilege and the principle of trusting no input to your code. It reviews authentication, input validation, output encoding, cryptography and dependencies. You get a checklist and fixes.

Mostly picked by

Updated November 2, 2026

Card for the “Secure and defensive coding practices” skill

Details

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

Similar resources

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What you get

  • SKILL.md: principles, security checklist and high-risk patterns
  • references/input-validation.md and output-encoding.md: input validation and output encoding
  • references/authentication.md and cryptography.md: authentication and cryptography

Good fit for

  • You are implementing login or session management
  • You handle personal data or credentials

Not for

    Tags

    • security
    • validation
    • authentication
    • defensive

    About

    You say

    “Review my API's password handling and form inputs using secure coding practices.”

    Card for the “Secure and defensive coding practices” skill

    Skill published by nickcrew 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 write secure code for authentication, inputs and sensitive data
    3. Review and adjust the result

    Content preview

    Files

    • LICENSE1 KB
    • NOTICE-PALATEKIT.md0.5 KB
    • references/authentication.md4.8 KB
    • references/cryptography.md4.3 KB
    • references/dependencies.md2.5 KB
    • references/error-handling.md3.5 KB
    • references/input-validation.md3.3 KB
    • references/output-encoding.md2.6 KB
    • references/secure-defaults.md3.9 KB
    • SKILL.md6.3 KB
    • validation/rubric.yaml2 KB

    Origin and licence

    Listed unmodified

    Author
    nickcrew
    Source
    github.com/nickcrew/claude-cortex/tree/bb47af79ad3befe01ae01940fcf5f16e30a1b6df/skills/secure-coding-practices
    Licence
    MIT

    Notice

    « secure-coding-practices » (nickcrew, MIT) livré dans sa version d'origine : fiche en français et en anglais par PalateKit.

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