supply-chain-attack

supply-chain-attack is a skill for Claude Code, Codex from wgpsec/AboutSecurity. It costs 62 tokens per session (1,863 once invoked), scanned C, original, no licence file.

A guide to assessing attacks against the software supply chain: the packages, private repositories, build servers, and CI/CD pipelines used to create and deliver software.

In plain words
What is it for?
Use it to examine npm, PyPI, and Maven dependencies, dependency confusion, typosquatting, malicious packages, and CI/CD or build-server compromise.
Why use it?
It helps find ways an attacker could introduce malicious code through dependencies, package names, repositories, or automated builds.

Skill for Claude CodeCodex

Which agent this was written for is unclear — body not stored (licence); the path alone says nothing.

Good fit Use it to examine npm, PyPI, and Maven dependencies, dependency confusion, typosquatting, malicious packages, and CI/CD or build-server compromise.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/wgpsec/aboutsecurity/supply-chain-attack
Install

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.

Any agent
npx skills add wgpsec/AboutSecurity --skill supply-chain-attack
Clone the repo
git clone --depth 1 https://github.com/wgpsec/AboutSecurity

Made for: Claude Code, Codex.

Wrote 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.

agentmods badge for supply-chain-attack

README.md
[![agentmods](https://agentmods.dev/badge/skills/wgpsec/aboutsecurity/supply-chain-attack.svg)](https://agentmods.dev/skills/wgpsec/aboutsecurity/supply-chain-attack)
Your own site
<a href="https://agentmods.dev/skills/wgpsec/aboutsecurity/supply-chain-attack"><img src="https://agentmods.dev/badge/skills/wgpsec/aboutsecurity/supply-chain-attack.svg" alt="Measured on agentmods" height="20"></a>
Per session 62 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,863 The whole file, excluding the scripts and references it only reads on demand.
Security scan C 2 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin unknown No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00062 $0.01863
Opus 5 $0.00031 $0.00932
Sonnet 5 $0.00012 $0.00373
Haiku 4.5 $0.00006 $0.00186

Measured 4d ago against content hash e7789b1f0cc9, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade C, and why

supply-chain-attack scanned grade C 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 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.

Reaches for credential fileshighPrivilege escalation

SSH keys, cloud credentials, git-credentials, .npmrc, /etc/shadow: reading these is how a config file becomes a credential leak.

- docker run -v /:/host alpine cat /host/etc/shadow

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

curl -s https://target.com | grep -oE "from ['\"]@[a-zA-Z0-9/-]+['\"]"
skills/exploit/advanced/supply-chain-attack/SKILL.md · 219 lines

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.

Read it on GitHub

Files

What ships with it

2 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.

Changes

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.

  1. 4d ago First seen · 219 lines · 62 tokens per session scan C e7789b1f0cc9

Subscribe to this mod's changes

supply-chain-attack is a skill published in the GitHub repository wgpsec/AboutSecurity (1,721 stars, last pushed 8d ago), with no licence file. It adds 62 tokens to every session and 1,863 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it C with 2 findings (reaches for credential files, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.

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