Security And Hardening

---
name: Security And Hardening
description: Hardens code against vulnerabilities. Use when handling user input, authentication, data storage, or external integrations. Use when building any feature that accepts untrusted data, manages user sessions, or interacts with third-party services.
---

# Security And Hardening

Part of the **Production Engineering Skills** pack by Addy Osmani (`addyosmani/agent-skills`).

Hardens code against vulnerabilities. Use when handling user input, authentication, data storage, or external integrations. Use when building any feature that accepts untrusted data, manages user sessions, or interacts with third-party services.

This catalog entry summarizes the skill for discovery. Get the full skill — including any bundled scripts and resources — from the source:

Full skill & source: https://github.com/addyosmani/agent-skills/tree/main/skills/security-and-hardening