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.
npx skills add BenAHammond/code-auditor-mcp --skill code-auditorgit clone --depth 1 https://github.com/BenAHammond/code-auditor-mcpWrote 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/benahammond/code-auditor-mcp/code-auditor)<a href="https://agentmods.dev/skills/benahammond/code-auditor-mcp/code-auditor"><img src="https://agentmods.dev/badge/skills/benahammond/code-auditor-mcp/code-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.
<a href="https://agentmods.dev/skills/benahammond/code-auditor-mcp/code-auditor"><img src="https://agentmods.dev/badge/skills/benahammond/code-auditor-mcp/code-auditor.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector warn
SkillSpector: 2 findings, 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 MCP Rug Pull · line 185 npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.Fix: Pin the version: npx @scope/[email protected]
- medium MCP Rug Pull · line 185 npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.Fix: Pin the version: npx @scope/[email protected]
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 | $0.00025 | $0.04464 |
| Opus 5.5 | $0.00010 | $0.01786 |
| Sonnet 5.5 | $0.00005 | $0.00893 |
| Haiku 4.5 | $0.00003 | $0.00446 |
Grade A, and why
code-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 4d 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.
How it starts
The opening of the file, as written. The whole thing — 269 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Code Auditor Skill
Version 5.4.1 • Run
code-audit --versionto check your installed version. If versions differ, the CLI is authoritative — usecode-audit <command> --helpto see what your install actually supports.
You have the code-audit CLI available. It indexes every function, component, and struct in the codebase for semantic search and invariant enforcement. Use these commands instead of raw grep/find whenever possible.
The diagnostic frame
code-audit is a diagnostic instrument, not a judge. Three terms carry that:
- Reading — the human-facing name for one rule observation. The machine contract calls the same thing a violation (a "finding" in the JSON). The audit takes readings; it does not issue verdicts.
- Coverage panel — the report leads with what was measured (which rules fired, which were clean, which were not applicable), so a zero-reading run is not mistaken for a clean tree.
- Triage — severity is urgency, not permission. Three levels, and the axis is how fast a reading bites you: critical (already wrong in production, or will fail when this code runs), severe (a real defect that has not bitten yet), high (correct, but it does not match a convention).
criticalandsevereare defects;highis a convention reading. Every reading blocks the edit gate by default. Queue order (critical→severe→high) is the order to act, not a license to skip.
When to use which command
code-audit search — find code by meaning, not just text
Use code-audit search <query> with its operator syntax instead of grep or rg. The full operator reference is in SKILL-SEARCH.md.
Key operators:
calls:<fn>— every caller of a function (uses the call graph, not regex)dep:<module>— everything importing a modulelang:<lang> complexity:>N— complex functions in a specific languageexported:— public API surfacefile:<glob>— scope to matching file pathsunused-imports— dead imports to clean up
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.
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.
- 4d ago Changed 1569d1d38abc
- 6d ago Changed 9f3755d454f1
- 11d ago Changed 6bc5fc6c1a31
- 14d ago Changed aea6a40aeb5b
- 17d ago Changed 08c655564056
- 18d ago Changed · +23 lines b3175d52c3f2
- 20d ago Changed a66b4849ffa9
- 25d ago Changed d8ab97c1784f
- 1mo ago Changed e836c55efbf8
- 1mo ago First seen · 246 lines · 25 tokens per session scan A 8fd1a4404c92
code-auditor is a skill published in the GitHub repository BenAHammond/code-auditor-mcp (8 stars, last pushed 5d ago), licensed MIT. It adds 25 tokens to every session and 4,464 once invoked, about $0.0001 per session on Opus 5.5. 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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