Threat Modeling

Quality score: 70/100 · Category: Security · Sub-category: threat-hunting

Produces structured threat models for software systems using STRIDE on data flow diagrams. Generates DFDs with trust boundaries, identifies threats per element, scores risks, and defines concrete mitigations. Outputs a complete threat model Markdown document through phased, interactive delivery. Use when threat modeling a system, analyzing security threats, identifying attack surfaces, performing STRIDE analysis, assessing security risks in architecture, creating a threat model document, or when the user mentions threat model, attack surface, trust boundaries, STRIDE, or security risk analysis.

What this skill does

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

When to invoke it: Use when threat modeling a system, analyzing security threats, identifying attack surfaces, performing STRIDE analysis, assessing security risks in architecture, creating a threat model document, or when the user mentions threat model, attack surface, trust boundaries, STRIDE, or security risk analysis.

Who uses this skill

The Threat Modeling 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/threat-modeling
curl -L https://claudskills.com/skills/threat-modeling/SKILL.md \
  -o ~/.claude/skills/threat-modeling/SKILL.md

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

Skills live at ~/.claude/skills/threat-modeling/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\threat-modeling\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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