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security-threat-model

Skill0 starsChanged 8 months agoMITView on GitHub

Repository-grounded threat modeling that enumerates trust boundaries, assets, attacker capabilities, abuse paths, and mitigations, and writes a concise Markdown threat model. Trigger only when the user explicitly asks to threat model a codebase or path, enumerate threats/abuse paths, or perform AppSec threat modeling. Do not trigger for general architecture summaries, code review, or non-security design work.

32 other projects use a version of this.

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The file

We split this skill into the rules it gives an agent

2 rules. 0 are common, 2 are distinctive, and 0 are very specific to this project.

  • 0

    Common

    Most of the 29 edited versions we read keep these.

  • 2

    Distinctive

    This author's own choices. Worth a look.

  • 0

    Very specific

    Tied to their project's names, files or tools. Probably skip.

  • Common
  • Distinctive
  • Very specific
  1. Distinctive:

    Keep examples generic, privacy-safe, and portable across hosts.

    line 21
  2. Distinctive:

    Do not reduce threat modeling to a static checklist with no real system boundaries.

    line 24

“Common” is measured: kept by at least 6 in 10 of the 29 edited versions of this file we could read. “Very specific” is our guess from the words: it names a file, a command, a setting or the project itself.

Keep what fits and drop the rest. Your version, ready for your agents.
Files
SKILL.md

security-threat-model

Intent

  • Repository-grounded threat modeling that enumerates trust boundaries, assets, attacker capabilities, abuse paths, and mitigations, and writes a concise Markdown threat model. Trigger only when the user explicitly asks to threat model a codebase or path, enumerate threats/abuse paths, or perform AppSec threat modeling. Do not trigger for general architecture summaries, code review, or non-security design work.

Default operating pattern

  1. Identify assets, trust boundaries, attacker assumptions, and sensitive flows.
  2. Inspect the current implementation or design surface that creates risk.
  3. Rank issues by impact, likelihood, and exploitability.
  4. Recommend the smallest safe-by-default changes that materially reduce exposure.
  5. Note verification steps and any residual risk that still remains.

Pack fit

  • Included in: security-quality
  • Keep examples generic, privacy-safe, and portable across hosts.

Boundary

  • Do not reduce threat modeling to a static checklist with no real system boundaries.

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