Security Threat Model Skill

This curated Codex skill walks through producing a structured threat model for a system — assets, trust boundaries, and attack surfaces — rather than an ad hoc security discussion.

Why a skill for this

Threat modeling is only useful if it’s structured and complete; an unstructured conversation tends to miss entire categories of risk. A skill that enforces the methodology produces a threat model that’s actually useful to a security reviewer.

Good for

Producing a structured threat model for a new system or feature before it ships, especially for security-sensitive designs.