input-validation

Installation
SKILL.md

Input Validation

Validate and sanitize all untrusted input using Zod v4 and Pydantic.

Overview

  • Processing user input
  • Query parameters
  • Form submissions
  • API request bodies
  • File uploads
  • URL validation

Core Principles

  1. Never trust user input
  2. Validate on server-side (client-side is UX only)
  3. Use allowlists (not blocklists)
  4. Validate type, length, format, range
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Installs
12
GitHub Stars
170
First Seen
Jan 22, 2026