sbom-supply-chain

sbom-supply-chain is a skill for Claude Code, Codex from BagelHole/DevOps-Security-Agent-Skills. It costs 44 tokens per session (3,209 once invoked), scanned C, original, MIT.

A guide to producing a software bill of materials, or SBOM, which lists the components inside an application or container, along with proof of where artifacts came from.

In plain words
What is it for?
Use it to generate CycloneDX or SPDX SBOMs, match them against vulnerabilities, and sign or verify artifacts and provenance in CI/CD.
Why use it?
It helps teams understand their dependencies, check release integrity, and provide evidence for security reviews and compliance.

Skill for Claude CodeCodex

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

Good fit Use it to generate CycloneDX or SPDX SBOMs, match them against vulnerabilities, and sign or verify artifacts and provenance in CI/CD.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/bagelhole/devops-security-agent-skills/sbom-supply-chain
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 BagelHole/DevOps-Security-Agent-Skills --skill sbom-supply-chain
Clone the repo
git clone --depth 1 https://github.com/BagelHole/DevOps-Security-Agent-Skills

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 sbom-supply-chain

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

Your own site · 80×15
<a href="https://agentmods.dev/skills/bagelhole/devops-security-agent-skills/sbom-supply-chain"><img src="https://agentmods.dev/badge/skills/bagelhole/devops-security-agent-skills/sbom-supply-chain.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 44 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,209 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 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 $0.00044 $0.03209
Opus 5 $0.00022 $0.01605
Sonnet 5 $0.00009 $0.00642
Haiku 4.5 $0.00004 $0.00321

Measured 9d ago against content hash 66b2296e8645, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade C, and why

sbom-supply-chain 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 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 -sSfL https://raw.githubusercontent.com/anchore/syft/main/install.sh | sh -s -- -b /usr/local/bin

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
security/scanning/sbom-supply-chain/SKILL.md · 408 lines

How it starts

The opening of the file, as written. The whole thing — 408 lines — stays where its author put it; the contents beside it link to each section on GitHub.

SBOM & Supply Chain Security

Improve release trust with reproducible metadata and verification gates.

When to Use This Skill

Use this skill when:

  • Producing SBOMs for container images or application builds
  • Verifying dependencies before deploy
  • Enforcing signed artifact and provenance policies
  • Preparing for SOC2, ISO 27001, or customer security reviews
  • Implementing SLSA framework requirements
  • Responding to supply chain vulnerabilities (e.g., Log4Shell-style events)

Prerequisites

  • syft installed for SBOM generation
  • cdxgen installed for CycloneDX SBOM generation
  • grype for vulnerability matching against SBOMs
  • cosign v2+ for signing and attestation
  • Container registry with OCI artifact support
  • CI/CD pipeline with OIDC identity for keyless signing

SBOM Formats

CycloneDX vs SPDX Comparison

comparison:
  cyclonedx:
    standard: "OWASP CycloneDX"
    focus: "Application security, vulnerability tracking"
    formats: ["JSON", "XML", "Protocol Buffers"]
    strengths:
      - Vulnerability references (VEX support)
      - Service and API dependency tracking
      - Hardware BOM support
    best_for: "Security-focused SBOM, vulnerability management"

  spdx:
    standard: "Linux Foundation SPDX (ISO/IEC 5962:2021)"
    focus: "License compliance, legal review"
    formats: ["JSON", "RDF/XML", "Tag-Value", "YAML"]
    strengths:
      - ISO standard
      - License expression language
      - Relationship modeling
    best_for: "License compliance, regulatory requirements"

Syft SBOM Generation

# Generate SBOM for a container image (CycloneDX JSON)
syft ghcr.io/acme/api:v1.2.3 -o cyclonedx-json > sbom-cyclonedx.json

# Generate SBOM in SPDX format
syft ghcr.io/acme/api:v1.2.3 -o spdx-json > sbom-spdx.json

# Generate SBOM from a local directory (source code)
syft dir:. -o cyclonedx-json > sbom-source.json

# Generate SBOM from a Dockerfile/built image
syft docker:my-local-image:latest -o cyclonedx-json > sbom-local.json

# Generate SBOM for a specific package ecosystem
syft dir:. --catalogers python -o cyclonedx-json > sbom-python.json

# Include file hashes for deeper analysis
syft ghcr.io/acme/api:v1.2.3 -o cyclonedx-json --file-metadata > sbom-with-hashes.json

# Multiple output formats simultaneously
syft ghcr.io/acme/api:v1.2.3 \
  -o cyclonedx-json=sbom-cdx.json \
  -o spdx-json=sbom-spdx.json \
  -o table=sbom-summary.txt

Read the full file on GitHub · 408 lines

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 · 408 lines · 44 tokens per session scan C 66b2296e8645

Subscribe to this mod's changes

sbom-supply-chain is a skill published in the GitHub repository BagelHole/DevOps-Security-Agent-Skills (1,084 stars, last pushed 3mo ago), licensed MIT. It adds 44 tokens to every session and 3,209 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it C 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 2026-09-03.

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