cicd-supply-chain

cicd-supply-chain is a skill for Claude Code from hypnguyen1209/offensive-claude. It costs 56 tokens per session (2,494 once invoked), scanned A, original, MIT.

A guide for auditing or testing CI/CD pipelines and software supply chains, the systems that build, test, and distribute software. It covers GitHub Actions, GitLab CI, Jenkins, dependencies, runners, credentials, and build provenance.

In plain words
What is it for?
Reviewing workflow injection, pull-request and cache risks, dependency confusion, mutable action tags, runner abuse, secret exposure, cloud-role trust, and SLSA provenance controls.
Why use it?
It helps identify ways untrusted code, altered dependencies, compromised build actions, or unsafe trust settings could affect a software build.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the offensive-claude plugin — 30 skills, 18 commands, 8 agents, 1 hook shipped together

Good fit Reviewing workflow injection, pull-request and cache risks, dependency confusion, mutable action tags, runner abuse, secret exposure, cloud-role trust, and SLSA provenance controls.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/hypnguyen1209/offensive-claude/cicd-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 hypnguyen1209/offensive-claude --skill cicd-supply-chain
Clone the repo
git clone --depth 1 https://github.com/hypnguyen1209/offensive-claude

Made for: Claude Code.

Or install offensive-claude, the plugin that ships this one along with the rest of its 30 skills, 18 commands, 8 agents, 1 hook.

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 cicd-supply-chain

README.md
[![agentmods](https://agentmods.dev/badge/skills/hypnguyen1209/offensive-claude/cicd-supply-chain/github.svg)](https://agentmods.dev/skills/hypnguyen1209/offensive-claude/cicd-supply-chain)
Your own site
<a href="https://agentmods.dev/skills/hypnguyen1209/offensive-claude/cicd-supply-chain"><img src="https://agentmods.dev/badge/skills/hypnguyen1209/offensive-claude/cicd-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 cicd-supply-chain

Your own site · 80×15
<a href="https://agentmods.dev/skills/hypnguyen1209/offensive-claude/cicd-supply-chain"><img src="https://agentmods.dev/badge/skills/hypnguyen1209/offensive-claude/cicd-supply-chain.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 56 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,494 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 1 finding, up to medium

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • medium Tool Misuse · line 100
    Tool defaults are unsafe or overly permissive (e.g. disabled TLS verification, no authentication, world-writable permissions). Unsafe defaults widen the attack surface.
    Fix: Override unsafe defaults with secure settings (verify=True, auth required, restrictive permissions). Review and harden all tool configurations.
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 $0.00056 $0.02494
Opus 5 $0.00028 $0.01247
Sonnet 5 $0.00011 $0.00499
Haiku 4.5 $0.00006 $0.00249

Measured 12d ago against content hash 0b371f773891, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

cicd-supply-chain scanned grade A with 1 finding 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 12d ago.

The scan reads SKILL.md. This mod also ships 6 executable files (scripts/dependency_confusion.py, scripts/malicious_action_scanner.py, scripts/oidc_trust_auditor.py, …), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

Makes network callslowCapability

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

| Dependency confusion | Install-time outbound from build host; package version anomaly (very high ver) | EDR proc-tree `npm/pip` -> `curl/node -e`; registry telemetry | Higher public version wins resolver; noisy if scop
skills/cicd-supply-chain/SKILL.md · 117 lines

How it starts

The opening of the file, as written. The whole thing — 117 lines — stays where its author put it; the contents beside it link to each section on GitHub.

CI/CD Pipeline Poisoning & Supply-Chain Attacks

When to Activate

  • Auditing or attacking GitHub Actions / GitLab CI / Jenkins pipelines for code execution
  • Hunting pull_request_target / workflow_run "pwn requests" and Poisoned Pipeline Execution (PPE)
  • Assessing compromised third-party Actions, mutable version tags, and Actions cache poisoning
  • Dependency confusion, typo/slopsquatting, and malicious package/install-hook payloads
  • Self-hosted / non-ephemeral runner abuse and runner backdoors
  • CI secret exfiltration and OIDC cloud-role (AWS/GCP/Azure) trust-policy abuse
  • Validating SLSA build provenance and signing gates (defense / blue-team validation)

Technique Map

Technique ATT&CK CWE Reference Script
Pwn request (pull_request_target checkout of fork head) T1195.001 CWE-269 references/pipeline-poisoning.md scripts/workflow_auditor.py
Script injection (${{ github.event.* }} into run:) T1059 CWE-94 references/pipeline-poisoning.md scripts/workflow_auditor.py
Direct / Indirect PPE (workflow or build-file modification) T1195.001 CWE-913 references/pipeline-poisoning.md scripts/workflow_auditor.py
GitLab .gitlab-ci.yml poisoning / pipeline-as-user (CVE-2024-6678) T1648 CWE-863 references/pipeline-poisoning.md scripts/workflow_auditor.py
Compromised Action via mutable tag (CVE-2025-30066 tj-actions) T1195.001 CWE-494 references/action-dependency-compromise.md scripts/malicious_action_scanner.py
Transitive Action compromise (CVE-2025-30154 reviewdog) T1195.001 CWE-1357 references/action-dependency-compromise.md scripts/malicious_action_scanner.py
Actions cache poisoning (cross-workflow escalation) T1525 CWE-349 references/action-dependency-compromise.md scripts/malicious_action_scanner.py
Dependency confusion (internal name on public registry) T1195.002 CWE-427 references/package-registry-attacks.md scripts/dependency_confusion.py
Typo / slopsquatting + malicious install hook T1195.002 CWE-829 references/package-registry-attacks.md scripts/dependency_confusion.py
Self-replicating registry worm (Shai-Hulud npm) T1195.002 CWE-829 references/package-registry-attacks.md scripts/malicious_action_scanner.py
Self-hosted / non-ephemeral runner abuse & backdoor T1199 CWE-668 references/runner-attacks.md scripts/runner_recon.sh
Jenkins Script Console RCE (/script, CVE-2024-23897) T1648 CWE-306 references/runner-attacks.md scripts/runner_recon.sh
CI secret exfiltration (toJSON(secrets), GhostAction) T1552.004 CWE-522 references/secrets-oidc-abuse.md scripts/oidc_trust_auditor.py
OIDC trust-policy abuse (missing/* sub, wrong org wildcard) T1078.004 CWE-1390 references/secrets-oidc-abuse.md scripts/oidc_trust_auditor.py
Build provenance / signing gate validation (defense) T1195 CWE-347 references/build-integrity-defense.md scripts/provenance_verify.sh

Read the full file on GitHub · 117 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. 12d ago First seen · 117 lines · 56 tokens per session scan A 0b371f773891

Subscribe to this mod's changes

cicd-supply-chain is a skill published in the GitHub repository hypnguyen1209/offensive-claude (357 stars, last pushed 25d ago), licensed MIT. It adds 56 tokens to every session and 2,494 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 1 finding (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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