Borrowing it
Nothing to install: this file belongs to pyramidheadshark/claude-scaffold. 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/pyramidheadshark/claude-scaffold/main/.claude/skills/supply-chain-auditor/SKILL.mdgit clone --depth 1 https://github.com/pyramidheadshark/claude-scaffoldWrote 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/pyramidheadshark/claude-scaffold/supply-chain-auditor)<a href="https://agentmods.dev/skills/pyramidheadshark/claude-scaffold/supply-chain-auditor"><img src="https://agentmods.dev/badge/skills/pyramidheadshark/claude-scaffold/supply-chain-auditor/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/pyramidheadshark/claude-scaffold/supply-chain-auditor"><img src="https://agentmods.dev/badge/skills/pyramidheadshark/claude-scaffold/supply-chain-auditor.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 | $0.00000 | $0.00776 |
| Opus 5 | $0.00000 | $0.00388 |
| Sonnet 5 | $0.00000 | $0.00155 |
| Haiku 4.5 | $0.00000 | $0.00078 |
Grade B, and why
supply-chain-auditor scanned grade B with 2 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 11d 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.
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.
| `curl | bash` install pattern | Arbitrary code execution | Use package manager with integrity check | 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.
[ ] Does stdlib cover this? (json, csv, pathlib, urllib, dataclasses...) How it starts
The opening of the file, as written. The whole thing — 74 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Skill: Supply Chain Auditor
When to Load
Auto-load when: adding dependencies, reviewing packages, updating versions, or discussing requirements.txt, pyproject.toml, package.json. Triggers on dependency, install, package, CVE, audit, vulnerable (≥2 keywords).
Core Rules
Every new dependency addition must pass this checklist before merging:
- Pinned — exact version in production (
==1.2.3for pip,"1.2.3"for npm, not^or~). - Maintained — last commit within 12 months. Abandoned packages accumulate unpatched CVEs.
- Necessary — can this be replaced by stdlib or an already-present dependency?
- Vetted — check PyPI/npm advisory database for known CVEs.
Pre-Dependency Checklist
Before adding any new package:
[ ] Does stdlib cover this? (json, csv, pathlib, urllib, dataclasses...)
[ ] Is it already a transitive dependency we can promote?
[ ] Last release date < 12 months ago
[ ] Download count > 10k/month (ecosystem signal, not guarantee)
[ ] No open CVEs with CVSS >= 7.0 in last 2 years
[ ] Version pinned exactly in requirements.txt / pyproject.toml
[ ] Added to lockfile (uv.lock / package-lock.json / poetry.lock)
Anti-Patterns — Block on Detection
| Anti-Pattern | Risk | Required Action |
|---|---|---|
Unpinned version (>=, ^, ~, *) in prod |
Unexpected breaking update or CVE introduced silently | Pin exact version |
pip install latest / npm install pkg without version |
Non-reproducible builds | Specify version, commit lockfile |
| Package with no recent activity (> 2 years no commits) | Unpatched vulnerabilities accumulate | Find maintained alternative |
| Dependency with known CVE | Direct security risk | Upgrade to patched version or replace |
| Pulling in package only for one utility function | Bloat, supply chain surface | Inline the function (if < 20 lines) |
| `curl | bash` install pattern | Arbitrary code execution |
Audit Commands
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.
- 11d ago First seen · 74 lines · 0 tokens per session scan B debf54c5a677
supply-chain-auditor is a skill published in the GitHub repository pyramidheadshark/claude-scaffold (4 stars, last pushed 4mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 776 tokens. A static security scan graded it B with 2 findings (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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