supply-chain-audit

supply-chain-audit is a skill for Claude Code, Codex from woohyun212/security-skill. It costs 37 tokens per session (4,708 once invoked), scanned B, original, MIT.

An audit of the software supply chain, meaning the dependencies, build process, source code, and distribution path behind an application. It scans components, checks SLSA practices, and creates a software bill of materials (SBOM), a list of included components.

In plain words
What is it for?
Use it before releases or acquisitions, after supply-chain incidents, when auditing third-party code, or when preparing CycloneDX/SPDX SBOMs and SLSA assessments.
Why use it?
It helps reveal vulnerable dependencies and weaknesses that could let attackers tamper with software before it reaches users.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it before releases or acquisitions, after supply-chain incidents, when auditing third-party code, or when preparing CycloneDX/SPDX SBOMs and SLSA assessments.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/woohyun212/security-skill/supply-chain-audit
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 woohyun212/security-skill --skill supply-chain-audit
Clone the repo
git clone --depth 1 https://github.com/woohyun212/security-skill

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-audit

README.md
[![agentmods](https://agentmods.dev/badge/skills/woohyun212/security-skill/supply-chain-audit/github.svg)](https://agentmods.dev/skills/woohyun212/security-skill/supply-chain-audit)
Your own site
<a href="https://agentmods.dev/skills/woohyun212/security-skill/supply-chain-audit"><img src="https://agentmods.dev/badge/skills/woohyun212/security-skill/supply-chain-audit/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 supply-chain-audit

Your own site · 80×15
<a href="https://agentmods.dev/skills/woohyun212/security-skill/supply-chain-audit"><img src="https://agentmods.dev/badge/skills/woohyun212/security-skill/supply-chain-audit.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 37 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 4,708 The whole file, excluding the scripts and references it only reads on demand.
Security scan B 2 findings. A grade says what 26 rules found in the file — not that it is safe.
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 $0.00037 $0.04708
Opus 5 $0.00018 $0.02354
Sonnet 5 $0.00007 $0.00942
Haiku 4.5 $0.00004 $0.00471

Measured 10d ago against content hash f3420d62f2ea, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade B, and why

supply-chain-audit 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 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.

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 -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.

curl -sSfL https://raw.githubusercontent.com/anchore/syft/main/install.sh | sh -s -- -b /usr/local/bin
supply-chain-audit/SKILL.md · 351 lines

How it starts

The opening of the file, as written. The whole thing — 351 lines — stays where its author put it; the contents beside it link to each section on GitHub.

What this skill does

Performs a comprehensive software supply chain security assessment: inventories all dependencies, runs SCA tooling across detected ecosystems, evaluates SLSA framework compliance (Levels 1–4), generates a CycloneDX/SPDX SBOM, and analyzes exposure across four attack vector categories (dependency, build pipeline, source code, distribution). Outputs a risk findings table, SLSA compliance matrix, and prioritized remediation roadmap.

When to use

  • When evaluating supply chain risk before a major release or acquisition
  • When responding to a supply chain incident (SolarWinds/XZ-style events)
  • When achieving SLSA Level 2+ compliance for a service
  • When preparing a software bill of materials for a customer or regulator
  • When auditing third-party code integrated into your codebase

Prerequisites

# Core SCA and SBOM tools
brew install trivy grype syft cosign gitleaks   # macOS
# Linux:
curl -sSfL https://raw.githubusercontent.com/anchore/syft/main/install.sh | sh -s -- -b /usr/local/bin
curl -sSfL https://raw.githubusercontent.com/anchore/grype/main/install.sh | sh -s -- -b /usr/local/bin

# Per-ecosystem tools (install what applies)
npm install -g snyk          # Node.js SCA + license check
pip install pip-audit        # Python SCA
go install golang.org/x/vuln/cmd/govulncheck@latest  # Go

# Secrets scanning
brew install trufflesecurity/trufflehog/trufflehog
  • SECSKILL_REPO_PATH: local repository root
  • SECSKILL_IMAGE_NAME (optional): container image name:tag to include in scan
  • SNYK_TOKEN (optional): enables Snyk authenticated scans

Inputs

Variable Required Description
SECSKILL_REPO_PATH Required Repository root path
SECSKILL_OUTPUT_DIR Optional Output directory (default: ./supply-chain-output)
SECSKILL_IMAGE_NAME Optional Container image to include in SBOM and vulnerability scan
SNYK_TOKEN Optional Snyk API token for authenticated SCA
SECSKILL_SBOM_FORMAT Optional cyclonedx or spdx (default: both)

Read the full file on GitHub · 351 lines

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. 10d ago First seen · 351 lines · 37 tokens per session scan B f3420d62f2ea

Subscribe to this mod's changes

supply-chain-audit is a skill published in the GitHub repository woohyun212/security-skill (21 stars, last pushed 4mo ago), licensed MIT. It adds 37 tokens to every session and 4,708 once invoked, about $0.0002 per session on Opus 5. 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 2026-08-30.

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