Forensify
alexgreensh/repo-forensics
Cross-agent self-inspection of your AI-agent stack. An agent skill from alexgreensh/repo-forensics.
Systematic threat modeling skill for applications, APIs, and systems using STRIDE, PASTA, Attack Trees, DREAD, LINDDUN, and OCTAVE.
Install Threat Modeling
$ npx skills add hardw00t/ai-security-arsenal --skill threat-modeling -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install hardw00t/ai-security-arsenal threat-modeling --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/hardw00t/ai-security-arsenal.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/threat-modeling .claude/skills/threat-modeling && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "threat-modeling" agent skill from https://github.com/hardw00t/ai-security-arsenal/tree/main/skills/threat-modeling into .claude/skills/threat-modeling/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "threat-modeling", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/hardw00t/ai-security-arsenal/tree/main/skills/threat-modelingType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add hardw00t/ai-security-arsenal --skill threat-modeling -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install hardw00t/ai-security-arsenal threat-modeling --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/hardw00t/ai-security-arsenal.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/threat-modeling .agents/skills/threat-modeling && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "threat-modeling" agent skill from https://github.com/hardw00t/ai-security-arsenal/tree/main/skills/threat-modeling into .agents/skills/threat-modeling/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "threat-modeling", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add hardw00t/ai-security-arsenal --skill threat-modeling -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install hardw00t/ai-security-arsenal threat-modeling --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/hardw00t/ai-security-arsenal.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/threat-modeling .cursor/skills/threat-modeling && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "threat-modeling" agent skill from https://github.com/hardw00t/ai-security-arsenal/tree/main/skills/threat-modeling into .cursor/skills/threat-modeling/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "threat-modeling", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/hardw00t/ai-security-arsenal.git --path skills/threat-modeling--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add hardw00t/ai-security-arsenal --skill threat-modeling -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install hardw00t/ai-security-arsenal threat-modeling --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/hardw00t/ai-security-arsenal.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/threat-modeling .gemini/skills/threat-modeling && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "threat-modeling" agent skill from https://github.com/hardw00t/ai-security-arsenal/tree/main/skills/threat-modeling into .gemini/skills/threat-modeling/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "threat-modeling", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install hardw00t/ai-security-arsenal threat-modelingInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add hardw00t/ai-security-arsenal --skill threat-modeling -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/hardw00t/ai-security-arsenal.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/threat-modeling .github/skills/threat-modeling && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "threat-modeling" agent skill from https://github.com/hardw00t/ai-security-arsenal/tree/main/skills/threat-modeling into .github/skills/threat-modeling/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "threat-modeling", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add hardw00t/ai-security-arsenal --skill threat-modeling -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install hardw00t/ai-security-arsenal threat-modeling --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/hardw00t/ai-security-arsenal.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/threat-modeling .opencode/skills/threat-modeling && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "threat-modeling" agent skill from https://github.com/hardw00t/ai-security-arsenal/tree/main/skills/threat-modeling into .opencode/skills/threat-modeling/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "threat-modeling", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
threat-modeling- GitHub stars
- 105
- Token cost
- ~2.6k tokens
- SKILL.md length
- 903 words
- Files
- 23 (incl. references)
- Skills in repo
- 7
- Repo updated
- First seen
- Licence
- None found
At a glance
Systematic threat modeling skill for applications, APIs, and systems using STRIDE, PASTA, Attack Trees, DREAD, LINDDUN, and OCTAVE.
- Assessing security architecture
- SKILL.md covers When to Use, Trigger Phrases, When NOT to Use This Skill and Decision Tree, plus 12 more sections
- Calls npm, apt and brew
- Creating data flow diagrams (Mermaid)
What it does
Threat Modeling is an agent skill from hardw00t/ai-security-arsenal. Systematic threat modeling skill for applications, APIs, and systems using STRIDE, PASTA, Attack Trees, DREAD, LINDDUN, and OCTAVE. Use when assessing security architecture, creating data flow diagrams (Mermaid), enumerating threats from OpenAPI specs or architecture docs, building attack trees, mapping threats to NIST/CIS/OWASP ASVS controls, or producing a threat model report. Triggers on requests to threat model, analyze attack surface, create a DFD, apply STRIDE, or design security mitigations.
Its SKILL.md is about 2.6k tokens, which your agent loads only when the skill is triggered. The skill folder holds 27 other files, including reference files (for example `examples/attack_tree_banking.md`, `examples/bounty_patterns_2024_2026.md` and `examples/mermaid_dfd_templates.md`).
It sits in Security, covering Threat modeling. It works with Mermaid. The repository describes itself as: A collection of skills, agents, commands, and workflows for security researchers. Compatible with Claude Code, Claude Desktop, OpenCode, and other AI coding tools.
When your agent uses it
- Assessing security architecture
- Creating data flow diagrams (Mermaid)
- Enumerating threats from OpenAPI specs
- Architecture docs
Example prompts
- “/threat-modeling”
Requirements
- Node.js
- Docker
What it can do on your machine
Read from SKILL.md and the folder at commit a1a68f7. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
Shell commands in SKILL.md call:
npmaptbrew
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md. Its commands use npm, which can reach the network depending on how they are called.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
Threat Modeling loads about 2.6k tokens when it runs, and up to ~6.3k if it reads all its reference files. Until then it costs about 130 tokens; SKILL.md has 903 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check passed
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
SKILL.md
Without a licence we can't republish the file, so here is its outline and opening line. It has 903 words (~2,576 tokens).
“Adversarial design-time analysis: enumerate threats against a system and specify mitigations. This skill routes to methodology files, workflow runbooks, example libraries, and control-catalog references. Extended adversarial reasoning is the core value — spend thinking budget on threat enumeration.”
- name
- threat-modeling
Files
SKILL.md and 22 other files (references) in skills/threat-modeling of hardw00t/ai-security-arsenal.
- SKILL.md
- examples/attack_tree_banking.md
- examples/bounty_patterns_2024_2026.md
- examples/mermaid_dfd_templates.md
- examples/stride_threat_library.md
- methodology/attack_trees.md
- methodology/dread.md
- methodology/linddun.md
- methodology/octave.md
- methodology/pasta.md
- methodology/stride.md
- references/control_catalogs.md
- references/framework_comparison.md
- references/trust_boundary_patterns.md
- schemas/finding.json
- templates/stride_table.md
- … and 7 more
Open the folder on GitHubat commit a1a68f7
Compare with similar skills
Threat Modeling next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Threat Modeling this skillhardw00t/ai-security-arsenal | 105 | — | ~2.6k | Automated safety check: Pass | None | |
| Forensifyalexgreensh/repo-forensics | 190 | — | ~2.5k | Automated safety check: Notes | Custom licence | |
| Create Rulecartography-cncf/cartography | 4.1k | — | ~3k | Automated safety check: Pass | Apache-2.0 | |
| Commit Security Scancodexstar69/bug-hunter | 520 | — | ~629 | Automated safety check: Pass | MIT | |
| Auditing Code For Vulnerabilitiestrilwu/secskills | 157 | — | ~3.2k | Automated safety check: Pass | MIT | |
| Threat Mitigation Mappingwshobson/agents | 40k | 8 repos | ~742 | Automated safety check: Pass | MIT |
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Works with
Categories
Questions about Threat Modeling
What does Threat Modeling do?
Systematic threat modeling skill for applications, APIs, and systems using STRIDE, PASTA, Attack Trees, DREAD, LINDDUN, and OCTAVE. Threat Modeling is an agent skill from hardw00t/ai-security-arsenal. Systematic threat modeling skill for applications, APIs, and systems using STRIDE, PASTA, Attack Trees, DREAD, LINDDUN, and OCTAVE.
When should I use Threat Modeling?
Threat Modeling fits situations like: assessing security architecture; creating data flow diagrams (Mermaid); enumerating threats from OpenAPI specs; architecture docs.
How do I install Threat Modeling in Claude Code?
Run `npx skills add hardw00t/ai-security-arsenal --skill threat-modeling -a claude-code`. Or copy the skill folder (skills/threat-modeling in hardw00t/ai-security-arsenal) into .claude/skills/threat-modeling in your project. Claude Code loads it when a task matches its description.
How do I install Threat Modeling in Codex?
Run `npx skills add hardw00t/ai-security-arsenal --skill threat-modeling -a codex`. Or copy the skill folder (skills/threat-modeling in hardw00t/ai-security-arsenal) into .agents/skills/threat-modeling in your project. Codex loads it when a task matches its description.
Can I use Threat Modeling in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add hardw00t/ai-security-arsenal --skill threat-modeling -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/threat-modeling, .gemini/skills/threat-modeling, .github/skills/threat-modeling and .opencode/skills/threat-modeling in your project.
What does Threat Modeling need to run?
Going by SKILL.md and its folder, Threat Modeling needs the command-line tools its instructions call (npm, apt and brew). Our summary lists: Node.js; Docker.
Does Threat Modeling access the network?
SKILL.md contains no URLs. Its commands use npm, which can reach the network depending on how they are called. This is read from the text; nothing was executed.
Is Threat Modeling safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.
What licence does Threat Modeling use?
No licence was found for Threat Modeling or its repository. Without one, default copyright applies: ask the author before reusing or redistributing it.
How many tokens does Threat Modeling use?
About 2.6k tokens (SKILL.md is roughly 10k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 3.7k tokens, read only when the agent opens those files.
What are the alternatives to Threat Modeling?
Skills that share tags, products or a category with Threat Modeling: Forensify (alexgreensh/repo-forensics, 190 stars), Create Rule (cartography-cncf/cartography, 4.1k stars), Commit Security Scan (codexstar69/bug-hunter, 520 stars) and Auditing Code For Vulnerabilities (trilwu/secskills, 157 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Threat Modeling?
hardw00t (a GitHub user) maintains it in hardw00t/ai-security-arsenal, which has 105 GitHub stars. The repository holds 7 skills in this directory. The repository was last updated on April 19, 2026.
Source: hardw00t/ai-security-arsenal on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.