threat-modeling SKILL.md skillA

threat-modeling from rjmurillo/ai-agents is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add rjmurillo/ai-agents/threat-modeling@v1.0.0

Pins v1.0.0 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
rjmurillo/ai-agents
Path
src/claude/skills/threat-modeling/SKILL.md
Versions recorded
5
Latest version
v1.0.0, committed Oct 31, 2026
First version recorded
Sep 27, 2026
Size
16,776 bytes
Repository stars
49
License
MIT

Structured security analysis using OWASP Four-Question Framework and STRIDE methodology. Generates threat matrices with risk ratings, mitigations, and prioritization. Use for attack surface analysis, security architecture review, or when asking what can go wrong. Do NOT use for per-change diff or snippet risk review; use security-review instead.

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

# Threat Modeling

Systematic identification, documentation, and mitigation of security threats.

## Triggers

| Phrase | Context |
|--------|---------|
| `threat model` | Starting or updating a threat model |
| `attack surface analysis` | Identifying exposure points |
| `security architecture review` | Reviewing design for vulnerabilities |
| `STRIDE analysis` | Applying STRIDE methodology |
| `what can go wrong` | Brainstorming security concerns |

## Quick Reference

| Input | Output | Destination |
|-------|--------|-------------|
| Architecture diagram or description | Threat matrix with STRIDE categories | `.project-toolkit/security/threat-models/` |
| Component list | Trust boundary analysis | `.project-toolkit/security/threat-models/` |
| Data flow description | Data flow diagram threats | `.project-toolkit/security/threat-models/` |
| Prior threat model | Updated model with delta analysis | `.project-toolkit/security/threat-models/` |

---

## Process Overview

```text
                         OWASP Four-Question Framework
                         =============================

          Q1: What are we        Q2: What can         Q3: What do we      Q4: Did we do
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add rjmurillo/ai-agents/threat-modeling@sha256:82dfa0ccacb54849

The line at the top of this page pins the label v1.0.0, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_4k7eeyf5rmgi5joz.svg)](https://markdownregistry.com/a/art_4k7eeyf5rmgi5joz)

0 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 5 versions of this file, between Sep 27, 2026 and Oct 31, 2026, about one every 8 days.

versioncommittedcommitsizeaudit
v1.0.0 latest2026-10-31 78e8145 16,776 BA view · diff
v1.0.02026-10-11 27d6163 16,805 BA view · diff
v1.0.02026-10-09 9274ec0 16,804 BA view · diff
v1.0.02026-10-08 20a13ff 16,816 BA view · diff
v1.0.02026-09-27 386d0d9 16,781 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (16776 bytes)
  • pass: No zero-width or bidi control characters
  • pass: No instruction hidden inside an HTML comment
  • pass: No link to an exfiltration or paste host
  • pass: No credential-shaped string
  • pass: No instruction to send local credentials anywhere
  • pass: No text hidden with inline styles
  • pass: No prompt-injection phrasing
  • pass: No curl or wget piped into a shell
  • pass: No recursive delete of root, home or parent
  • pass: No instruction to read or print local credentials
  • pass: No base64 blob over 200 characters
  • pass: No link to a raw IP address
  • pass: No script tag

Source

GitHub

rjmurillo/ai-agents · 49 stars · license MIT · pushed 2026-11-07 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_4k7eeyf5rmgi5joz
GET https://markdownregistry.com/api/v1/resolve?ref=rjmurillo/ai-agents/threat-modeling
GET https://markdownregistry.com/api/v1/blob/82dfa0ccacb548491cab9c7cebbfad0980ef9b7f9ef0095e33c38b86357899d5

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.

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