audit-security

audit-security is a skill for Claude Code from subinium/vibesubin. It costs 78 tokens per session (6,158 once invoked), scanned B, original, MIT.

A focused security review for common application risks, including leaked secrets, injection flaws, unsafe file access, and insecure web settings.

In plain words
What is it for?
Use it before releasing or open-sourcing a project, after a major refactor, or when checking for exposed credentials, unsafe input handling, cross-site scripting, path traversal, and related problems.
Why use it?
It filters and classifies findings instead of overwhelming you with a long list of scanner warnings, helping you focus on issues that may be actionable.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter. Also seen: positional $N argument.

Part of the vibesubin plugin — 12 skills, 1 hook shipped together

Good fit Use it before releasing or open-sourcing a project, after a major refactor, or when checking for exposed credentials, unsafe input handling, cross-site scripting, path traversal, and related problems.

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

Made for: Claude Code.

Or install vibesubin, the plugin that ships this one along with the rest of its 12 skills, 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 audit-security

README.md
[![agentmods](https://agentmods.dev/badge/skills/subinium/vibesubin/audit-security.svg)](https://agentmods.dev/skills/subinium/vibesubin/audit-security)
Your own site
<a href="https://agentmods.dev/skills/subinium/vibesubin/audit-security"><img src="https://agentmods.dev/badge/skills/subinium/vibesubin/audit-security.svg" alt="Measured on agentmods" height="20"></a>
Per session 78 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 6,158 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 $0.00078 $0.06158
Opus 5 $0.00039 $0.03079
Sonnet 5 $0.00016 $0.01232
Haiku 4.5 $0.00008 $0.00616

Measured 8d ago against content hash 215d4a889a07, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade B, and why

audit-security 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 8d 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.

Reaches for credential filesmediumPrivilege escalation

SSH keys, cloud credentials, git-credentials, .npmrc, /etc/shadow: reading these is how a config file becomes a credential leak.

- SSH keys: revoke the compromised public key from `~/.ssh/authorized_keys` on every server, generate a new keypair

Downgraded: this mod is about security review, or the phrase is quoted, so it is likely naming the pattern rather than instructing it.

Runs shell commandslowCapability

Expected in a hook, worth knowing in a rule or an instructions file.

- `subprocess.run(..., shell=True)`
plugins/vibesubin/skills/audit-security/SKILL.md · 404 lines

How it starts

The opening of the file, as written. The whole thing — 404 lines — stays where its author put it; the contents beside it link to each section on GitHub.

audit-security

A security audit that the operator will actually read.

Enterprise scanners emit hundreds of warnings. Non-developers silence them within a week and then a real vulnerability slips through because nobody's reading anymore. The opposite strategy works better: a short, hand-curated list of patterns that are almost always actionable, each one triaged individually. Every hit gets classified. Every classification has a reason.

The rule

Never report more than ~20 findings. If the automated sweep returns 100 hits, triage them into categories and report the categories, not the raw list. The operator's attention is the scarcest resource and the wrong optimization is "comprehensive."

When to trigger

Any of:

  • "is this safe"
  • "security check" / "security audit"
  • "are there any vulnerabilities"
  • "any secrets leaked"
  • "is my .env exposed"
  • "OWASP"
  • before a public release or open-sourcing
  • after a major refactor (run together with refactor-verify)
  • when the operator mentions a data breach, incident, or scare

If the operator asks for something outside this skill's scope (compliance audits, penetration testing, crypto review), say so plainly and suggest a specialist tool.

Upfront constraint lock-in

Before running, establish three things with the operator. Do not start the sweep until these are clear:

  1. Scope — the whole repo, one directory, one file, or one PR diff?
  2. Severity threshold — report everything found, or only HIGH/CRITICAL?
  3. Runtime context — is this code behind an authenticated endpoint, public, internal tool, or CLI? The same pattern is a different severity depending on context.

If the operator doesn't know the answers, pick the most conservative defaults: whole repo, report all, assume public-facing. Tell them that's what you picked.

State assumptions — before acting

Before starting the procedure, write an explicit Assumptions block. Don't pick silently between interpretations; surface the choice. If any assumption is wrong or ambiguous, pause and ask — do not proceed on a guess.

Read the full file on GitHub · 404 lines

Files

What ships with it

2 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. 8d ago First seen · 404 lines · 78 tokens per session scan B 215d4a889a07

Subscribe to this mod's changes

audit-security is a skill published in the GitHub repository subinium/vibesubin (50 stars, last pushed 4mo ago), licensed MIT. It adds 78 tokens to every session and 6,158 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it B with 2 findings (reaches for credential files, runs shell commands). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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