# 2. What is x402guard?

x402guard provides **pre-install security auditing** for AI agent skills.

Before a skill is installed, x402guard:

1. Fetches skill content
2. Runs multi-stage security analysis
3. Calculates a risk score
4. Returns findings and recommendation
5. Optionally issues a signed attestation

x402guard acts as:

> **npm audit for AI agent skills**