A code-security review guide for finding weaknesses across nine programming languages, covering more than 55 vulnerability types and drawing on historical WooYun vulnerability cases.

Use it for security audits, vulnerability scanning, penetration-test preparation, and security-focused code reviews.

It helps identify security problems during code review before testing or deployment, without relying only on general-purpose checks.

code-audit — Skill by CuriousLearnerDev

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.

agentmods

npx agentmods add skills/curiouslearnerdev/online_tools-ai/code-audit

Any agent

npx skills add CuriousLearnerDev/Online_Tools-AI --skill code-audit

Clone the repo

git clone --depth 1 https://github.com/CuriousLearnerDev/Online_Tools-AI

Made for: Claude Code, Codex.

Per session 193 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 3,345 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. Scan, not verified.

Origin unknown 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.

Model	Per session	Once invoked
Fable 5	$0.00193	$0.03345
Opus 5	$0.00097	$0.01673
Sonnet 5	$0.00039	$0.00669
Haiku 4.5	$0.00019	$0.00334

Measured 2d ago against content hash c4a58c18d793, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

code-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 2d ago.

The scan reads SKILL.md. This mod also ships 2 executable files (references/core/audit.sh, references/core/security_controls_engine.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.

storage/Skill/code-audit/SKILL.md · 365 lines

The source is not reproduced here

No licence file

Read it on GitHub

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.

2d ago First seen · 365 lines · 193 tokens per session scan A c4a58c18d793

Subscribe to this mod's changes

code-audit is a skill published in the GitHub repository CuriousLearnerDev/Online_Tools-AI (51 stars, last pushed 1mo ago), with no licence file. It adds 193 tokens to every session and 3,345 once invoked, about $0.0010 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 2026-08-30.

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