supplychain-overview

supplychain-overview is a skill for Claude Code from PurpleAILAB/Decepticon. It costs 33 tokens per session (569 once invoked), scanned A, original, Apache-2.0.

A guide to researching software supply-chain attacks, where attackers target dependencies, package registries, build systems, or software distribution. It groups techniques such as dependency confusion, package-name impersonation, and build-pipeline poisoning.

In plain words
What is it for?
Use it to route research toward the relevant supply-chain technique and identify exposed package names in lockfiles, repositories, build files, or public artifacts.
Why use it?
It helps organize investigations into ways untrusted code could enter a project through its dependencies or build process.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

Good fit Use it to route research toward the relevant supply-chain technique and identify exposed package names in lockfiles, repositories, build files, or public artifacts.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/purpleailab/decepticon/supplychain
About the project

Decepticon is an autonomous red-team agent that coordinates AI agents, security tools, sandboxes, and supporting services for authorized cybersecurity assessments. Security researchers and red teams can run it through its Docker stack, cloud service, command-line interface, or Python SDK, with the catalogue entries representing its available skills.

PurpleAILAB/Decepticon · 5,491 stars · on GitHub · decepticon.red

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 PurpleAILAB/Decepticon --skill supplychain
Clone the repo
git clone --depth 1 https://github.com/PurpleAILAB/Decepticon

Made for: Claude Code.

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 supplychain-overview

README.md
[![agentmods](https://agentmods.dev/badge/skills/purpleailab/decepticon/supplychain/github.svg)](https://agentmods.dev/skills/purpleailab/decepticon/supplychain)
Your own site
<a href="https://agentmods.dev/skills/purpleailab/decepticon/supplychain"><img src="https://agentmods.dev/badge/skills/purpleailab/decepticon/supplychain/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.

agentmods 80×15 button for supplychain-overview

Your own site · 80×15
<a href="https://agentmods.dev/skills/purpleailab/decepticon/supplychain"><img src="https://agentmods.dev/badge/skills/purpleailab/decepticon/supplychain.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 33 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 569 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
Origin original 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 $0.00033 $0.00569
Opus 5 $0.00016 $0.00284
Sonnet 5 $0.00007 $0.00114
Haiku 4.5 $0.00003 $0.00057

Measured 9d ago against content hash 31a2c5b359bc, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

supplychain-overview 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.

Origin

Copies of this mod

1 near-identical copy found in the catalogue:

packages/decepticon/decepticon/skills/standard/exploit/supplychain/SKILL.md · 41 lines

What it actually says

Supply-Chain Exploitation — Category Overview

This is a routing skill for supply-chain attack research. Sub-skills cover specific techniques against the dependency, build, and distribution layers.

Sub-Skills

Sub-Skill Covers When to Load
dep-confusion Public-registry impersonation of private package names, scoped-package abuse (@org/pkg), internal-name OSINT (lockfiles, GitHub Actions, Dockerfiles, error pages) Target uses private npm/PyPI/RubyGems/Cargo registries and you've discovered internal package names in public artifacts

Surface Discovery

# Lockfiles often expose private package names that aren't on public registry
grep -hE '"name":|"@.+/' package-lock.json yarn.lock pnpm-lock.yaml | sort -u
# pip
grep -E '^[a-z0-9_-]+' requirements.txt
# go.mod
grep '^\s*[a-z0-9./_-]\+\s' go.mod
# Maven
grep -A1 '<artifactId>' pom.xml | grep -v '^--$'

Decision Notes

  • Always confirm scope authorization in writing before publishing any package, even a benign one, to a public registry. Some bounty programs explicitly disallow public-registry submissions.
  • Use a beacon-only payload (DNS callback, HTTPS GET) for confirmation; never ship code that mutates the target environment without an explicit follow-up authorization.
  • Real damage from confusion attacks is usually post-install scripts (postinstall, setup.py install) — focus PoCs on benign callbacks, not RCE.
  • For build-pipeline poisoning (workflow injection, branch protection bypass) see /skills/standard/exploit/ad/SKILL.md (CI-as-AD-equivalent paths) and the broader threat-modeling under /skills/shared/opsec/SKILL.md.
Files

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.

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. 9d ago First seen · 41 lines · 33 tokens per session scan A 31a2c5b359bc

Subscribe to this mod's changes

supplychain-overview is a skill published in the GitHub repository PurpleAILAB/Decepticon (5,491 stars, last pushed 13d ago), licensed Apache-2.0. It adds 33 tokens to every session and 569 once invoked, about $0.0002 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.