Security Threat Modeler

Quality score: 70/100 · Category: Security · Sub-category: security-misc

type:review

Analyze codebase architecture to generate a STRIDE-based threat model with data flow diagrams, trust boundaries, prioritized threats, and mitigations. Compatible with Microsoft Threat Modeling Tool concepts. Use when asked to "threat model", "security analysis", "STRIDE analysis", "identify security threats", "data flow security", "generate a threat model", or "security architecture review".

What this skill does

Security Threat Modeler is a production-ready Claude Code skill (quality score 70/100) in the security-misc sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/security-threat-modeler/ and loads when your prompt matches the skill's trigger.

When to invoke it: Use when asked to "threat model", "security analysis", "STRIDE analysis", "identify security threats", "data flow security", "generate a threat model", or "security architecture review".

Who uses this skill

The Security Threat Modeler skill is built for security engineers, penetration testers, DevSecOps practitioners, and development teams hardening codebases and infrastructure. It is part of the open ClaudSkills registry, a community-curated catalog of 15,000+ capabilities you can install for Claude Code — the Claude CLI agent.

How to install

Free

Manual install (2 steps)

mkdir -p ~/.claude/skills/security-threat-modeler
curl -L https://claudskills.com/skills/security-threat-modeler/SKILL.md \
  -o ~/.claude/skills/security-threat-modeler/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/security-threat-modeler/. Claude Code auto-discovers it on next session.

Skills live at ~/.claude/skills/security-threat-modeler/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\security-threat-modeler\SKILL.md on Windows. See the full install guide for step-by-step instructions.

Pro

One-click install via the desktop app

The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.

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Part of ClaudSkills — the open registry for Claude Code skills. · What's New · Install guide · About · llms.txt

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