ultrasafe-supply-chain-auditor

ultrasafe-supply-chain-auditor is a skill for Claude Code from SoliEstre/EstreGenesis. It costs 228 tokens per session (6,101 once invoked), scanned A, original, Apache-2.0.

A pre-release security review focused on software dependencies and the chain used to build and publish them. It checks risks such as vulnerable packages, fake package names, mismatched software bills of materials, and signing problems.

In plain words
What is it for?
Examining dependency files, tracing indirect packages, checking software bills of materials, and reviewing package or container publishing paths.
Why use it?
A project can be unsafe because of a package or publishing step even when its own code looks correct. This review helps find those risks before release.

Skill for Claude Code

Written for Claude Code: PreToolUse hook event.

Part of the ultrasafe plugin — 8 skills shipped together

Good fit Examining dependency files, tracing indirect packages, checking software bills of materials, and reviewing package or container publishing paths.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/soliestre/estregenesis/ultrasafe-supply-chain-auditor
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 SoliEstre/EstreGenesis --skill ultrasafe-supply-chain-auditor
Clone the repo
git clone --depth 1 https://github.com/SoliEstre/EstreGenesis

Made for: Claude Code.

Or install ultrasafe, the plugin that ships this one along with the rest of its 8 skills.

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 ultrasafe-supply-chain-auditor

README.md
[![agentmods](https://agentmods.dev/badge/skills/soliestre/estregenesis/ultrasafe-supply-chain-auditor/github.svg)](https://agentmods.dev/skills/soliestre/estregenesis/ultrasafe-supply-chain-auditor)
Your own site
<a href="https://agentmods.dev/skills/soliestre/estregenesis/ultrasafe-supply-chain-auditor"><img src="https://agentmods.dev/badge/skills/soliestre/estregenesis/ultrasafe-supply-chain-auditor/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 ultrasafe-supply-chain-auditor

Your own site · 80×15
<a href="https://agentmods.dev/skills/soliestre/estregenesis/ultrasafe-supply-chain-auditor"><img src="https://agentmods.dev/badge/skills/soliestre/estregenesis/ultrasafe-supply-chain-auditor.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 228 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 6,101 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 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 Excessive Agency · line 266
    Skill enables autonomous high-impact decisions without human-in-the-loop verification. Critical operations (destructive commands, financial transactions, data deletion) should require explicit user confirmation.
    Fix: Add human-in-the-loop confirmation for destructive, irreversible, or high-impact operations. Never auto-execute commands that modify files, send data, or alter system state.
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 $0.00228 $0.06101
Opus 5 $0.00114 $0.03050
Sonnet 5 $0.00046 $0.01220
Haiku 4.5 $0.00023 $0.00610

Measured 12d ago against content hash 7d364fe79c26, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

ultrasafe-supply-chain-auditor 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 12d 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.

plugins/ultrasafe/skills/ultrasafe-supply-chain-auditor/SKILL.md · 284 lines

How it starts

The opening of the file, as written. The whole thing — 284 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Supply Chain Auditor — Ultrasafe Attacker Skill

Role: Pre-release simulated penetration testing from the dependency vulnerability / SBOM mismatch / typosquatting / signing-chain perspective. Tone: dependency-graph-aware — every finding is anchored to a node in the dependency DAG, with the transitive path made explicit (root → … → vulnerable node) and the build/publish lane (npm, PyPI, crates.io, Go module proxy, container registry) named. Output: ULTRASAFE_FINDING A2A intents (Constellation §13.16, runtime wire = Ultrasafe.md §18.1) — advisory only in v0.2.x. Position: Agent 3 of the 8-agent Ultrasafe fan-out (Ultrasafe.md §15.3).

§1 When to invoke

Fire this skill in any of the following situations:

  1. Iteration axis-set includes usf-supply-chain — orchestrator (Ultrasafe.md §15, §9.9) dispatches this skill automatically as part of the parallel fan-out, regardless of tier. SCS 5-way coverage (build / maintainer / typo / transitive / reproducibility) is mandatory whenever this axis is active.
  2. Pre-release trigger touches a dependency manifest — the PreToolUse hook (hooks/ultrasafe-trigger.cjs, Ultrasafe.md §17.1) detects an imminent npm publish / pip upload / cargo publish / git push --tags and any of package.json / package-lock.json / pnpm-lock.yaml / pyproject.toml / poetry.lock / requirements*.txt / Cargo.toml / Cargo.lock / go.mod / go.sum / Gemfile.lock / composer.lock / Pipfile.lock / SBOM file (CycloneDX bom.json, SPDX *.spdx.json) has changed since the last clean iteration baseline.
  3. A new transitive dependency appears — diff between current commit and last_clean_baseline_sha introduces a new node in the resolved dependency DAG (Ultrasafe.md §6.5 — promotes Tier 1 patch to Tier 2).
  4. External SECURITY_DISCLOSURE_INTAKE references a CVE in a current dependency — Ultrasafe §18.4 inbound disclosure intent names a CVE / GHSA / OSV id that matches a PURL in the current SBOM.
  5. Signing-chain artifact added or rotated — cosign keyless certificate, Rekor entry, SLSA provenance attestation, or in-toto layout changes since the last iteration; re-verify the entire chain before allowing the new artifact to participate in clean-signal evaluation.

Read the full file on GitHub · 284 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 · 284 lines · 228 tokens per session scan A 7d364fe79c26

Subscribe to this mod's changes

ultrasafe-supply-chain-auditor is a skill published in the GitHub repository SoliEstre/EstreGenesis (8 stars, last pushed 6d ago), licensed Apache-2.0. It adds 228 tokens to every session and 6,101 once invoked, about $0.0011 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 2026-08-31.

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