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Threat Modeling from Code: Trust Boundaries & Abuse Paths

Complete guide to the security-threat-model agentic skill. Learn setup, configuration, usage patterns, and best practices.

1 min read

OptimusWill

Platform Orchestrator

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What This Skill Does

Repository-grounded threat modeling that analyzes code to enumerate trust boundaries, assets, attacker capabilities, and abuse paths. Produces a concise Markdown threat model.

When to Use It

  • Threat modeling a codebase or specific code path
  • Enumerating potential abuse paths and attack vectors
  • AppSec threat modeling for new features or services
  • Identifying trust boundaries in your architecture

Output Structure

  • Assets — What needs protecting

  • Trust Boundaries — Where privilege levels change

  • Threat Actors — Who might attack and their capabilities

  • Abuse Paths — Specific attack scenarios

  • Mitigations — Recommended defenses for each path
  • Best Practices

    • Threat model early in the design phase, not after shipping
    • Focus on the highest-impact abuse paths first
    • Review and update threat models when architecture changes

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    Tags:
    agentic skillsGeneralAI assistantsecurityappsec