Borrowing it
Nothing to install: this file belongs to drujensen/aiagent. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/drujensen/aiagent/main/.claude/skills/security-scan/SKILL.mdgit clone --depth 1 https://github.com/drujensen/aiagentWrote 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/drujensen/aiagent/security-scan)<a href="https://agentmods.dev/skills/drujensen/aiagent/security-scan"><img src="https://agentmods.dev/badge/skills/drujensen/aiagent/security-scan/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.
<a href="https://agentmods.dev/skills/drujensen/aiagent/security-scan"><img src="https://agentmods.dev/badge/skills/drujensen/aiagent/security-scan.svg" alt="Reviewed on agentmods" width="80" 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 5.1 | $0.00046 | $0.00349 |
| Opus 5.5 | $0.00018 | $0.00140 |
| Sonnet 5.5 | $0.00009 | $0.00070 |
| Haiku 4.5 | $0.00005 | $0.00035 |
Grade A, and why
security-scan 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.
What it actually says
Security Scan
Security scan for:
Instructions
Use the Agent tool with subagent_type: "security" to perform a one-shot security scan.
Pass it:
- The files or directory to scan, or a description of the feature to review
- Any specific concerns to focus on
The security agent will:
- Run automated grep-based scans:
- API key/secret patterns in code
- Command injection risks (exec.Command usage)
- Path traversal risks (file operations)
- MongoDB filter injection patterns
- Sensitive data in log statements
- Review each flagged location in context
- Propose specific remediations for any issues found
Output
The security agent produces:
- Automated scan results (what each grep found)
- Analysis of each finding (real vulnerability vs. false positive)
- Specific remediation for each real issue
- Summary: critical / warning / clean
Important
- This is a one-shot scan with no review loop — use
/security-reviewfor the full cycle - Critical findings (injection vulnerabilities, key leakage) should be fixed before merging
- The scan covers the aiagent threat model: BashTool injection, FileReadTool/FileWriteTool traversal, API key logging, MongoDB NoSQL injection, WebSocket validation
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 · 43 lines · 46 tokens per session scan A 1503c53c6252
security-scan is a skill published in the GitHub repository drujensen/aiagent (5 stars, last pushed 2mo ago), licensed MIT. It adds 46 tokens to every session and 349 once invoked, about $0.0002 per session on Opus 5.5. 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 2026-10-03.
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