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 skills add bobmatnyc/claude-mpm-skills --skill security-scanninggit clone --depth 1 https://github.com/bobmatnyc/claude-mpm-skillsWrote 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/bobmatnyc/claude-mpm-skills/security-scanning)<a href="https://agentmods.dev/skills/bobmatnyc/claude-mpm-skills/security-scanning"><img src="https://agentmods.dev/badge/skills/bobmatnyc/claude-mpm-skills/security-scanning/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/bobmatnyc/claude-mpm-skills/security-scanning"><img src="https://agentmods.dev/badge/skills/bobmatnyc/claude-mpm-skills/security-scanning.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 | $0.00021 | $0.00486 |
| Opus 5 | $0.00010 | $0.00243 |
| Sonnet 5 | $0.00004 | $0.00097 |
| Haiku 4.5 | $0.00002 | $0.00049 |
Grade A, and why
security-scanning 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.
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 Scanning
Quick Start
- Secrets: fail fast; rotate on exposure.
- Dependencies: gate critical/high; automate updates.
- SAST: start high-signal; ratchet over time.
- Open Source Safety: score components on three axes — license tier, severity-weighted CVEs, obsolescence.
- Exceptions: require reason, owner, and expiry.
Open Source Safety
Third-party component risk is more than "vulnerable: yes/no". Evaluate each component on three independent dimensions and gate on the worst:
- License risk: HIGH = strong copyleft / GPL/AGPL/LGPL (whole-app disclosure risk);
MEDIUM = weak copyleft / MPL, EPL (modification disclosure only); LOW = permissive /
MIT, Apache-2.0, BSD. Unknown/
NOASSERTION→ treat as HIGH until identified. - CVE weighting: weight by severity (critical ≫ high ≫ medium ≫ low) rather than raw counts; critical/high block, medium/low track with owner + expiry.
- Obsolescence: score the gap to latest version; majors-behind or unmaintained upstream is elevated risk.
See references/open-source-safety.md for the full framework, tier tables, the CVE
weighting model, obsolescence scoring, and the transitive-dependency trust model.
Load Next (References)
references/tooling-matrix.mdreferences/ci-workflows.mdreferences/triage-and-remediation.mdreferences/common-findings-and-fixes.mdreferences/supply-chain-and-sbom.mdreferences/open-source-safety.md
What ships with it
7 files 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.
- 9d ago First seen · 53 lines · 21 tokens per session scan A 3513d336692c
security-scanning is a skill published in the GitHub repository bobmatnyc/claude-mpm-skills (75 stars, last pushed 1mo ago), licensed MIT. It adds 21 tokens to every session and 486 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 2026-09-03.
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