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 JPeetz/agent-skills --skill supply-chain-security-scannergit clone --depth 1 https://github.com/JPeetz/agent-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/jpeetz/agent-skills/supply-chain-security-scanner)<a href="https://agentmods.dev/skills/jpeetz/agent-skills/supply-chain-security-scanner"><img src="https://agentmods.dev/badge/skills/jpeetz/agent-skills/supply-chain-security-scanner/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/jpeetz/agent-skills/supply-chain-security-scanner"><img src="https://agentmods.dev/badge/skills/jpeetz/agent-skills/supply-chain-security-scanner.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 | $0.00307 | $0.07742 |
| Opus 5 | $0.00153 | $0.03871 |
| Sonnet 5 | $0.00061 | $0.01548 |
| Haiku 4.5 | $0.00031 | $0.00774 |
Grade B, and why
supply-chain-security-scanner scanned grade B with 3 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 10d 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.
Sends data to an external URLlowData exfiltration
A POST to an outside endpoint may be telemetry or may be exfiltration; either way the mod talks to somewhere, and you should know where.
curl -s "https://api.osv.dev/v1/query" -d '{ Downgraded: this mod is about security review, or the phrase is quoted, so it is likely naming the pattern rather than instructing it.
Downloads and executes remote codemediumSupply chain
curl | sh runs whatever the server returns today, which is not necessarily what it returned when this was reviewed.
| `syft` | SBOM generation (SPDX, CycloneDX) | `brew install syft` / `curl -sSfL https://raw.githubusercontent.com/anchore/syft/main/install.sh \| sh -s -- -b /usr/local/bin` | Downgraded: this mod is about security review, or the phrase is quoted, so it is likely naming the pattern rather than instructing it.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
| `syft` | SBOM generation (SPDX, CycloneDX) | `brew install syft` / `curl -sSfL https://raw.githubusercontent.com/anchore/syft/main/install.sh \| sh -s -- -b /usr/local/bin` | The source is not reproduced here
No licence file
A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.
What ships with it
9 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.
- CHANGELOG.md 2.4 KB
- evals/evals.json 4.7 KB
- LICENSE 1.0 KB
- references/ecosystem-vuln-databases.md 11 KB
- references/owasp-ast10-summary.md 6.0 KB
- references/sbom-formats.md 6.5 KB
- scripts/generate-sbom.sh 14 KB runs code
- scripts/scan-dependencies.sh 22 KB runs code
- scripts/verify-provenance.sh 20 KB runs code
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.
- 10d ago First seen · 842 lines · 307 tokens per session scan B 037ff325d61c
supply-chain-security-scanner is a skill published in the GitHub repository JPeetz/agent-skills (7 stars, last pushed 3d ago), with no licence file. It adds 307 tokens to every session and 7,742 once invoked, about $0.0015 per session on Opus 5. A static security scan graded it B with 3 findings (sends data to an external url, downloads and executes remote code, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
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