Borrowing it
Nothing to install: this file belongs to TheDecipherist/claude-code-mastery-project-starter-kit. 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/TheDecipherist/claude-code-mastery-project-starter-kit/main/.claude/skills/dependency-vetting/SKILL.mdgit clone --depth 1 https://github.com/TheDecipherist/claude-code-mastery-project-starter-kitWrote 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/thedecipherist/claude-code-mastery-project-starter-kit/dependency-vetting)<a href="https://agentmods.dev/skills/thedecipherist/claude-code-mastery-project-starter-kit/dependency-vetting"><img src="https://agentmods.dev/badge/skills/thedecipherist/claude-code-mastery-project-starter-kit/dependency-vetting/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/thedecipherist/claude-code-mastery-project-starter-kit/dependency-vetting"><img src="https://agentmods.dev/badge/skills/thedecipherist/claude-code-mastery-project-starter-kit/dependency-vetting.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 | $0.00073 | $0.00857 |
| Opus 5 | $0.00036 | $0.00428 |
| Sonnet 5 | $0.00015 | $0.00171 |
| Haiku 4.5 | $0.00007 | $0.00086 |
Grade C, and why
dependency-vetting scanned grade C 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 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.
Downloads and executes remote codehighSupply chain
curl | sh runs whatever the server returns today, which is not necessarily what it returned when this was reviewed.
- **`curl | sh` and friends.** Any install step that pipes a remote script into a shell, or `npx`-runs a second package, or registers a persistent MCP server, is a red flag. The package should do what its README says and Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
- **`curl | sh` and friends.** Any install step that pipes a remote script into a shell, or `npx`-runs a second package, or registers a persistent MCP server, is a red flag. The package should do what its README says and Runs shell commandslowCapability
Expected in a hook, worth knowing in a rule or an instructions file.
- **What it actually does vs. claims.** Read the real entry points. Network calls, child_process, filesystem writes outside its own dir, env/credential reads, and telemetry that the README doesn't disclose are all findin How it starts
The opening of the file, as written. The whole thing — 47 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Vet a Dependency
npm audit catches known CVEs in packages you already trust. This is the other problem: deciding whether to trust a package in the first place. The goal is an evidence-backed verdict, not a vibe.
What to gather
Pull the facts before judging. Use npm view <pkg>, the npm and GitHub pages, and the published tarball.
- Downloads vs. stars vs. dependents. A package with thousands of weekly downloads, single-digit stars, and no dependents is a mismatch worth explaining. Real adoption shows up in all three. Check the download shape too: organic growth is a curve; isolated single-day spikes with dead baseline around them are manufactured.
- Install scripts. Read
package.jsonforpreinstall,install,postinstall. Anything that runs on install is the highest-risk surface, read exactly what it does. curl | shand friends. Any install step that pipes a remote script into a shell, ornpx-runs a second package, or registers a persistent MCP server, is a red flag. The package should do what its README says and nothing the README doesn't.- What it actually does vs. claims. Read the real entry points. Network calls, child_process, filesystem writes outside its own dir, env/credential reads, and telemetry that the README doesn't disclose are all findings.
- Obfuscation. Minified-only source with no readable repo,
eval, base64 blobs, or dynamicrequireof constructed strings. Legitimate packages ship readable code. - Maintainer and provenance. Account age, other packages, repo activity, whether the npm package's repo link actually matches a real, public repo. A brand-new author with one oddly-popular package warrants more scrutiny.
- Typosquatting. Is the name one character off a popular package? Is it impersonating a known scope?
- License sanity. Missing, contradictory, or relicensed-from-someone-else (a file marked MIT that's actually CC-BY upstream) is both a legal and a trust signal.
How to judge, and how to phrase it
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 · 47 lines · 73 tokens per session scan C ab4a48c5ec27
dependency-vetting is a skill published in the GitHub repository TheDecipherist/claude-code-mastery-project-starter-kit (338 stars, last pushed 2mo ago), licensed MIT. It adds 73 tokens to every session and 857 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it C with 3 findings (downloads and executes remote code, makes network calls, runs shell commands). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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