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DevOps & Security · Free

Security Threat Modeler

Map assets, trust boundaries, abuse cases, mitigations and verification evidence.

Works withChatGPTClaude

Version 1.0.0

Use it for

  • Threat-model a new design, data flow or security change.
  • Check existing controls against likely attacks.

What you get

  • A map of assets and trust boundaries.
  • A threat table with attack paths and existing controls.
  • Mitigations, how to verify them, and remaining risk.

A place to start

Example requests

Threat-model an OAuth document API for token theft, tenant isolation, SSRF and retention; mark unknown controls.

Review my Security Threat Modeler output for gaps and unsafe assumptions.

Connect and use

This free tool is a set of written instructions, a checklist and a template that guide your AI assistant through the job. It works in any assistant and never calls our servers.

  1. Choose Copy instructions above, or view them first.
  2. ChatGPT or Claude: create a Project and paste them into the project instructions, so every chat in that project uses this tool. Or paste them at the start of a single chat.
  3. Ask your question or use an example request, and add the details it asks for.