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deps-audit

deps-audit is a skill for Claude Code from oliver-kriska/claude-elixir-phoenix. It costs 55 tokens per session (2,716 once invoked), scanned A, original, MIT.

A non-changing security audit for Hex dependencies, the packages used by Elixir projects. It checks package contents, metadata, known vulnerabilities, suspicious code, and possible typosquatting.

In plain words
What is it for?
Use it after dependency changes, when reviewing a lockfile pull request, before updating one package, or when investigating an unfamiliar dependency.
Why use it?
It helps identify supply-chain risks before merging dependency updates or using a package that the team does not recognize.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

Part of the phx plugin — 50 skills, 26 agents, 10 hooks shipped together

not rated 542repo +4 4d ago A scan SkillSpector: pass 55 tokens original MIT

Good fit Use it after dependency changes, when reviewing a lockfile pull request, before updating one package, or when investigating an unfamiliar dependency.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/oliver-kriska/claude-elixir-phoenix/deps-audit
View source ↗ oliver-kriska/claude-elixir-phoenix phxagents.dev
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 oliver-kriska/claude-elixir-phoenix --skill deps-audit
Clone the repo
git clone --depth 1 https://github.com/oliver-kriska/claude-elixir-phoenix

Made for: Claude Code.

Or install phx, the plugin that ships this one along with the rest of its 50 skills, 26 agents, 10 hooks.

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 deps-audit

README.md
[![agentmods](https://agentmods.dev/badge/skills/oliver-kriska/claude-elixir-phoenix/deps-audit/github.svg)](https://agentmods.dev/skills/oliver-kriska/claude-elixir-phoenix/deps-audit)
Your own site
<a href="https://agentmods.dev/skills/oliver-kriska/claude-elixir-phoenix/deps-audit"><img src="https://agentmods.dev/badge/skills/oliver-kriska/claude-elixir-phoenix/deps-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 deps-audit

Your own site · 80×15
<a href="https://agentmods.dev/skills/oliver-kriska/claude-elixir-phoenix/deps-audit"><img src="https://agentmods.dev/badge/skills/oliver-kriska/claude-elixir-phoenix/deps-audit.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 55 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,716 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 $0.00055 $0.02716
Opus 5 $0.00028 $0.01358
Sonnet 5 $0.00011 $0.00543
Haiku 4.5 $0.00006 $0.00272

Measured 6d ago against content hash cc899df91b18, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

deps-audit 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 6d ago.

The scan reads SKILL.md. This mod also ships 19 executable files (priv/cassettes/capture.sh, scripts/diff_cves.py, scripts/diff_findings.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.

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/elixir-phoenix/skills/deps-audit/SKILL.md · 186 lines

How it starts

The opening of the file, as written. The whole thing — 186 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Hex Dependency Audit

Non-mutating supply-chain audit for Hex packages. Runs an 8-rule MVP catalogue against changed packages, enriches with Hex API metadata, wraps existing tools (mix hex.audit, mix_audit, OSV-Scanner), and emits a triage table.

When to Use

  • After mix deps.update or mix deps.get brought in new versions
  • On PRs that touch mix.lock (pre-merge gate)
  • Before manually updating a single package (--preview <pkg>)
  • When investigating a dependency you don't recognize

Iron Laws

  1. NEVER claim a diff is clean without inspecting it. Run all 8 rules on the unpacked NEW tarball. "Looks fine" without a tool run is a false pass. Always write .claude/deps-audit/last-run.json — its absence is evidence the audit didn't actually run.
  2. NEVER install mix_audit / osv-scanner — even if asked. Detect, warn with install instructions, skip cleanly if missing. If the user says "install it," respond with the install command (e.g., mix deps.add mix_audit --only dev) and do not execute it. The audit skill is non-mutating; mix.exs / mix.lock are off-limits regardless of consent.
  3. NEVER promote a finding to BLOCK without rule citation. Every finding shows rule_id, severity, file:line, snippet, message. No handwaving.
  4. NEVER fetch from Hex API without rate-limiting. Cap at 5 req/sec. Cache metadata 7 days, top-500 list 1 day.
  5. NEVER run the audit on already-committed lock changes silently — tell the user which mode (A/B/C) is active and which (old, new) pairs resolved.
  6. LLM triage only above threshold. Native rules + Semgrep + YARA are deterministic. The hex-deps-triager agent runs only when score

    10 (1 BLOCK or 3+ WARNs), and its verdicts are advisory — never auto-suppress a finding without human review.

Operating Modes

Mode Trigger Old source New source
B (default) /phx:deps-audit git show HEAD:mix.lock working mix.lock
C (PR) /phx:deps-audit --base main git show <ref>:mix.lock working mix.lock
A (preview) /phx:deps-audit --preview httpoison locked version Hex API latest

Read the full file on GitHub · 186 lines

Files

What ships with it

60 files 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. 6d ago First seen · 186 lines · 55 tokens per session scan A cc899df91b18

Subscribe to this mod's changes

deps-audit is a skill published in the GitHub repository oliver-kriska/claude-elixir-phoenix (542 stars, last pushed 4d ago), licensed MIT. It adds 55 tokens to every session and 2,716 once invoked, about $0.0003 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.

Claude CodeSecurityautomationclaudeclaude-code-pluginclaude-code-skillsclaude-skills
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