Getting it into your agent
It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.
git clone --depth 1 https://github.com/tomzx/agentsnpx agentmods add skills/tomzx/agents/audit-securityWrote 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.
[](https://agentmods.dev/skills/tomzx/agents/audit-security)<a href="https://agentmods.dev/skills/tomzx/agents/audit-security"><img src="https://agentmods.dev/badge/skills/tomzx/agents/audit-security/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.
<a href="https://agentmods.dev/skills/tomzx/agents/audit-security"><img src="https://agentmods.dev/badge/skills/tomzx/agents/audit-security.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00035 | $0.02648 |
| Opus 5.5 | $0.00014 | $0.01059 |
| Sonnet 5.5 | $0.00007 | $0.00530 |
| Haiku 4.5 | $0.00003 | $0.00265 |
Grade A, and why
audit-security 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 22d 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.
Runs shell commandslowCapability
Expected in a hook, worth knowing in a rule or an instructions file.
rg -n "(os\.system|subprocess\.(call|run|Popen)|exec\(|eval\(|child_process)" \ How it starts
The opening of the file, as written. The whole thing — 259 lines — stays where its author put it; the contents beside it link to each section on GitHub.
TODAY=!date +%Y-%m-%d
Security Audit
Scans your own code for vulnerabilities — distinct from /audit-dependencies which covers external packages.
Covers hardcoded secrets, injection patterns, missing authentication and authorization checks, insecure defaults, and other OWASP-class issues.
Produces a prioritized remediation plan with severity ratings.
Prerequisites
- Working directory is the root of the repository
- Optional:
$1— path to limit the scan (defaults to.) - Language-specific tools (degrades to rg heuristics if unavailable):
- Any language:
semgrep(pip install semgreporbrew install semgrep) - Secrets:
trufflehog(pip install trufflehog) orgitleaks(brew install gitleaks) - Python:
bandit(uv tool install bandit) - JavaScript/TypeScript:
eslintwitheslint-plugin-security - Go:
gosec(go install github.com/securego/gosec/v2/cmd/gosec@latest)
- Any language:
Vulnerability Categories
| Category | Severity | Examples |
|---|---|---|
| Hardcoded secrets | 🔴 Critical | API keys, passwords, tokens in source |
| Injection | 🔴 Critical | SQL, command, LDAP, XPath injection |
| Insecure deserialization | 🔴 Critical | pickle.loads, eval, exec on user input |
| Broken authentication | 🔴 High | Missing auth checks, weak session handling |
| Sensitive data exposure | 🔴 High | PII/secrets logged, transmitted unencrypted |
| Insecure direct object reference | 🟡 High | Missing ownership checks on resource access |
| Security misconfiguration | 🟡 Medium | Debug mode on, permissive CORS, weak TLS |
| Missing authorization | 🟡 Medium | Authenticated but not authorized |
| Cryptography issues | 🟡 Medium | Weak algorithms (MD5, SHA1), hardcoded IVs |
| Dependency confusion | 🟢 Low | Internal package names resolvable publicly |
Steps
1. Detect Language and Available Tools
find ${1:-.} -type f | sed 's/.*\.//' | sort | uniq -c | sort -rn | head -10
command -v semgrep && semgrep --version
command -v bandit && bandit --version
command -v gosec && gosec --version
command -v gitleaks && gitleaks version
command -v trufflehog && trufflehog --version
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.
- 22d ago Changed · +8 lines c94a75e85dd8
- 23d ago Changed · +7 lines 98c884b9f370
- 2mo ago First seen · 244 lines · 35 tokens per session scan A 84b47b74139c
audit-security is a skill published in the GitHub repository tomzx/agents (13 stars, last pushed yesterday), licensed MIT. It adds 35 tokens to every session and 2,648 once invoked, about $0.0001 per session on Opus 5.5. A static security scan graded it A with 1 finding (runs shell commands). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
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