skillscan-gov

skillscan-gov is a skill for Claude Code, Codex from YouYou-lj/GovSafeAgent. It costs 35 tokens per session (241 once invoked), scanned A, original, Apache-2.0.

A security scanner for agent skills that examines packages without importing or running their code.

In plain words
What is it for?
Use it to inspect a skill folder or ZIP file, review its code structure and dependencies, and run its security tests.
Why use it?
It helps find unsafe behavior, risky dependencies, excessive permissions, and other security concerns before a skill is used.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Needs its repository: it runs a file that does not travel with it, so clone the repository first. The line is python research_technology/benchmarks/runners/eval_paper_fullstack.py.

Good fit Use it to inspect a skill folder or ZIP file, review its code structure and dependencies, and run its security tests.

Compare 6 skills from other repositories ↓
Install

Getting it into your agent

It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.

Clone the repo
git clone --depth 1 https://github.com/YouYou-lj/GovSafeAgent
agentmods
npx agentmods add skills/youyou-lj/govsafeagent/skillscan-gov

Made for: Claude Code, Codex.

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 skillscan-gov

README.md
[![agentmods](https://agentmods.dev/badge/skills/youyou-lj/govsafeagent/skillscan-gov/github.svg)](https://agentmods.dev/skills/youyou-lj/govsafeagent/skillscan-gov)
Your own site
<a href="https://agentmods.dev/skills/youyou-lj/govsafeagent/skillscan-gov"><img src="https://agentmods.dev/badge/skills/youyou-lj/govsafeagent/skillscan-gov/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 skillscan-gov

Your own site · 80×15
<a href="https://agentmods.dev/skills/youyou-lj/govsafeagent/skillscan-gov"><img src="https://agentmods.dev/badge/skills/youyou-lj/govsafeagent/skillscan-gov.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 35 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 241 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 original 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 $0.00035 $0.00241
Opus 5 $0.00017 $0.00120
Sonnet 5 $0.00007 $0.00048
Haiku 4.5 $0.00003 $0.00024

Measured 9d ago against content hash 12597b6d384a, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

skillscan-gov 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 9d ago.

The scan reads SKILL.md. This mod also ships 10 executable files (src/__init__.py, src/advanced_scanner.py, src/analysis.py, …), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

research_technology/skills/skillscan-gov/SKILL.md · 27 lines

What it actually says

SkillScan-Gov

公开入口

src/scanner.py:scan_skill_package

安全边界

  • 禁止导入或执行待扫描代码。
  • ZIP/目录输入限制路径、符号链接、压缩比、加密成员、嵌套压缩、文件数、单文件和总大小。
  • 网络访问和 Shell 执行默认关闭。

当前主路径使用 Python AST 与 JavaScript/TypeScript 结构化语法树,联合跨文件调用/数据流、manifest 权限、SBOM 和固定依赖风险快照。原 token 扫描保留为 B1 消融,不参与 B3 主裁决。

验证

python -m pytest research_technology/skills/skillscan-gov/tests -q
python research_technology/benchmarks/runners/eval_paper_fullstack.py
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. 9d ago First seen · 27 lines · 35 tokens per session scan A 12597b6d384a

Subscribe to this mod's changes

skillscan-gov is a skill published in the GitHub repository YouYou-lj/GovSafeAgent (2 stars, last pushed 14d ago), licensed Apache-2.0. It adds 35 tokens to every session and 241 once invoked, about $0.0002 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 2026-08-31.

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