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Updated 2w ago

by alpha-omega-security

threat-model

Agent skill for producing threat models for open-source projects

Works with
  • Claude

59 GitHub stars (59)

+3 in 16 days

Stars gained per day · daily snapshots since Sep 30
Stars gained per day, Sep 30 to Oct 16: +3 in total; the busiest day was Oct 6 with +2 stars.Oct 1: 0 starsOct 2: 0 starsOct 3: 0 starsOct 4: 0 starsOct 5: 0 starsOct 6: +2 starsOct 7: 0 starsOct 8: 0 starsOct 9: 0 starsOct 10: +1 starsOct 11: 0 starsOct 12: 0 starsOct 13: 0 starsOct 14: 0 starsOct 15: 0 starsOct 16: 0 stars
Stars gained between daily snapshots
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  • 8 skills (8 skills found in its SKILL.md files)
  • 9 forks (9 forks)
  • 2w ago last update (Last updated 2w ago)

Install

Skills CLI

npx skills add alpha-omega-security/threat-model

Asks which skills and agents to install. Just one: npx skills add alpha-omega-security/threat-model --skill threat-model-authoring — add -g for every project.

Claude Code

git clone https://github.com/alpha-omega-security/threat-modelcp -r "threat-model/skills/threat-model-authoring" ~/.claude/skills/

Copies the threat-model-authoring skill into ~/.claude/skills/ for every project (use .claude/skills/ for one project). Repeat for the other skills listed below.

Plugin

/plugin marketplace add alpha-omega-security/threat-model

Run inside Claude Code if the repository ships a plugin marketplace, then pick plugins from /plugin.

Skills can run code on your machine — read the SKILL.md first.

What it does

In the author's own words, from each skill's SKILL.md.

  • threat-model-authoring

    Draft phase 3.5 of a threat model from the orientation brief, surface analysis, and maintainer answers. USE WHEN writing threat-model.md to the canonical §1.1–§1.19 structure. Combines concise prose with the §1.7 trust table and contract matrix, §1.8 output statements, §1.17 disposition table, §1.1 triager quick-start, and any prior-policy back-map. Tags every non-trivial claim as documented, mai…

    skills/threat-model-authoring/SKILL.md on GitHub (opens in a new tab)
  • threat-model-backtest

    Backtest phase 3.6 of threat-model production against historical findings before sign-off. USE WHEN a draft model must prove it can uniquely route real reports. Builds a stratified producer-side corpus across components and contract dimensions, clusters large corpora by sink and attack class, and routes each item blind to one §1.17 disposition. Reports MODEL-GAP, contradictory or ambiguous routin…

    skills/threat-model-backtest/SKILL.md on GitHub (opens in a new tab)
  • threat-model-interview

    Run phase 3.4 maintainer question waves for threat-model production. USE WHEN inferred claims need ratification or interview-first versus draft-first mode must be chosen. Asks 3–7 prioritized proposed-answer questions per wave; wave 1 always covers scope, intended use, configuration support, and host side effects. Records answers, promotes inferred provenance to dated maintainer provenance, and r…

    skills/threat-model-interview/SKILL.md on GitHub (opens in a new tab)
  • threat-model-recon

    Orient and mine an open-source repository for threat-model production phases 3.1–3.2. USE WHEN starting a threat model or surveying security posture before modeling. Reads README, top-level docs, SECURITY/THREAT docs, maintainer issue rulings, and changelog rationale; carves component families; flags shipped-but-unsupported code; classifies project type; and absorbs an existing embedded threat mo…

    skills/threat-model-recon/SKILL.md on GitHub (opens in a new tab)
  • threat-model-sidecar

    Emit and validate the §1.19 machine-readable companions: threat-model.yaml using schema threat-model-sidecar/v2, and the flat threat-model.json export conforming to schema.json. USE WHEN an orchestrated threat model is ready for publication, automated or AI-assisted triage, dependency compatibility analysis, or companion regeneration after prose changes. Projects provenance- backed components, in…

    skills/threat-model-sidecar/SKILL.md on GitHub (opens in a new tab)
  • threat-model-surface

    Perform phase 3.3 deep analysis of an in-scope attack surface for a threat model. USE WHEN the orientation brief is ready and code must be read to derive the §1.7 per-input trust table and contract-dimension matrix, §1.5 no-surprise side-effects inventory, §1.4 reachability preconditions, and §1.8 output taint. Reads public entry points for contract rather than defects, timeboxes each component f…

    skills/threat-model-surface/SKILL.md on GitHub (opens in a new tab)
  • threat-model-triage

    Triage one inbound vulnerability report, scanner hit, fuzzer artifact, or AI finding against a finished threat model. USE WHEN asked whether a finding is valid or in scope. Applies the §1.1 routing algorithm and §1.17 precedence to assign exactly one closed disposition with section and provenance citations; inferred claims may escalate but never close, and assumptions close only what the model's…

    skills/threat-model-triage/SKILL.md on GitHub (opens in a new tab)
  • threat-model

    Produce a threat model for a targeted open-source repository or package: its implicit security contract (assumptions, guarantees, disclaimed properties, and known misuses), not an audit, pentest, CVE list, or build-hygiene review. USE WHEN asked to produce, write, or generate a threat model, model the security contract, or explain which threats a library accepts. This orchestrator runs the canoni…

    skills/threat-model/SKILL.md on GitHub (opens in a new tab)

Review before you install

A skill is a set of instructions and scripts your agent will follow, and it can run code on your machine. Read the SKILL.md and any scripts first — this listing is not a security review.