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.
npx agentmods add skills/stefanthecode/dotnet-ai-toolkit/dependency-vuln-scannernpx skills add StefanTheCode/dotnet-ai-toolkit --skill dependency-vuln-scannergit clone --depth 1 https://github.com/StefanTheCode/dotnet-ai-toolkitWrote 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.
[](https://agentmods.dev/skills/stefanthecode/dotnet-ai-toolkit/dependency-vuln-scanner)<a href="https://agentmods.dev/skills/stefanthecode/dotnet-ai-toolkit/dependency-vuln-scanner"><img src="https://agentmods.dev/badge/skills/stefanthecode/dotnet-ai-toolkit/dependency-vuln-scanner.svg" alt="Measured on agentmods" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5 | $0.00099 | $0.00603 |
| Opus 5 | $0.00049 | $0.00302 |
| Sonnet 5 | $0.00020 | $0.00121 |
| Haiku 4.5 | $0.00010 | $0.00060 |
Grade A, and why
dependency-vuln-scanner 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 4d 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.
How it starts
The opening of the file, as written. The whole thing — 41 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Dependency Vulnerability Scanner
Check NuGet dependencies (direct and transitive) for known CVEs, deprecation, and staleness, then recommend the safest upgrade path.
Input — point it at your project
Works on a target: a project/solution or GitHub URL. Run the built-in scanners:
dotnet restore <target>
dotnet list <target> package --vulnerable --include-transitive
dotnet list <target> package --deprecated
dotnet list <target> package --outdated
If you can't restore (offline), inspect versions in .csproj/packages.lock.json and flag known-risky ranges, marking results "verify".
What it reports
- 🔴 Known vulnerabilities — package, installed version, severity, advisory, and the fixed version to move to. Transitive ones include the path that pulls them in.
- 🟠 Deprecated packages — with the recommended replacement.
- 🟡 Significantly outdated — major versions behind (security fixes you're missing even without a listed CVE).
- Transitive pulls — a safe direct package dragging in a vulnerable transitive one → pin or update the parent, or add a direct reference to force the fixed version.
Upgrade guidance
- Prefer the minimal version bump that clears the advisory (lower regression risk).
- For transitive vulns, update the parent if it ships a fixed transitive; otherwise add a direct
PackageReferenceto the patched version. - Use
packages.lock.jsonfor reproducible, auditable restores. - Note breaking-change risk for major bumps and suggest testing.
Principles
- Transitive dependencies are your attack surface too — scan
--include-transitive. - Patch the advisory with the smallest safe bump; don't blindly jump majors.
- Make it repeatable — wire
dotnet list package --vulnerableinto CI so new CVEs surface automatically.
How to use it & best prompts
"Scan my project for vulnerable packages", "any CVEs in my dependencies", "what NuGet packages should I update for security", "this transitive package is flagged — how do I fix it". Pairs with nuget-dependency-analyzer and the aspnetcore-security-auditor agent.
What ships with it
1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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.
- 4d ago First seen · 41 lines · 99 tokens per session scan A 300dcd3107df
dependency-vuln-scanner is a skill published in the GitHub repository StefanTheCode/dotnet-ai-toolkit (19 stars, last pushed 25d ago), licensed MIT. It adds 99 tokens to every session and 603 once invoked, about $0.0005 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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