threat-modeler

threat-modeler is a skill for Claude Code from Agile-V/agile_v_skills. It costs 29 tokens per session (2,376 once invoked), scanned A, original, CC-BY-SA-4.0.

A security and privacy planning aid based on STRIDE, a method for categorising software threats, and privacy-impact assessment.

In plain words
What is it for?
Use it before writing system requirements to produce security and privacy requirements.
Why use it?
It helps identify security and privacy risks while requirements are still being defined, so they can shape the system before implementation.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the agile-v-skills plugin — 49 skills shipped together

Good fit Use it before writing system requirements to produce security and privacy requirements.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/agile-v/agile_v_skills/threat-modeler
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add Agile-V/agile_v_skills --skill threat-modeler
Clone the repo
git clone --depth 1 https://github.com/Agile-V/agile_v_skills

Made for: Claude Code.

Or install agile-v-skills, the plugin that ships this one along with the rest of its 49 skills.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for threat-modeler

README.md
[![agentmods](https://agentmods.dev/badge/skills/agile-v/agile_v_skills/threat-modeler/github.svg)](https://agentmods.dev/skills/agile-v/agile_v_skills/threat-modeler)
Your own site
<a href="https://agentmods.dev/skills/agile-v/agile_v_skills/threat-modeler"><img src="https://agentmods.dev/badge/skills/agile-v/agile_v_skills/threat-modeler/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for threat-modeler

Your own site · 80×15
<a href="https://agentmods.dev/skills/agile-v/agile_v_skills/threat-modeler"><img src="https://agentmods.dev/badge/skills/agile-v/agile_v_skills/threat-modeler.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 29 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,376 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin unknown No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00029 $0.02376
Opus 5 $0.00015 $0.01188
Sonnet 5 $0.00006 $0.00475
Haiku 4.5 $0.00003 $0.00238

Measured 12d ago against content hash ffa54bcd3126, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

threat-modeler scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 12d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

threat-modeler/SKILL.md · 158 lines

The source is not reproduced here

Licensed CC-BY-SA-4.0

The repository is licensed CC-BY-SA-4.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.

Read it on GitHub

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 12d ago First seen · 158 lines · 29 tokens per session scan A ffa54bcd3126

Subscribe to this mod's changes

threat-modeler is a skill published in the GitHub repository Agile-V/agile_v_skills (54 stars, last pushed 17d ago), licensed CC-BY-SA-4.0. It adds 29 tokens to every session and 2,376 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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