security-review

security-review is a skill for Claude Code from johnqtcg/awesome-skills. It costs 164 tokens per session (5,960 once invoked), scanned A, original, MIT.

A code-security review guide that checks code changes, pull requests, or services for risks an attacker could exploit.

In plain words
What is it for?
Use it to review authentication, user input, secrets, APIs, data handling, concurrency, containers, third-party software, and dependencies. It supports reviews of Node.js and TypeScript, Java and Spring, and Python web applications.
Why use it?
It helps find serious security problems before code is merged or deployed, while filtering out issues that are not practically exploitable.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

Good fit Use it to review authentication, user input, secrets, APIs, data handling, concurrency, containers, third-party software, and dependencies. It supports reviews of Node.js and TypeScript, Java and Spring, and Python web applications.

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

Made for: Claude Code.

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 security-review

README.md
[![agentmods](https://agentmods.dev/badge/skills/johnqtcg/awesome-skills/security-review/github.svg)](https://agentmods.dev/skills/johnqtcg/awesome-skills/security-review)
Your own site
<a href="https://agentmods.dev/skills/johnqtcg/awesome-skills/security-review"><img src="https://agentmods.dev/badge/skills/johnqtcg/awesome-skills/security-review/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 security-review

Your own site · 80×15
<a href="https://agentmods.dev/skills/johnqtcg/awesome-skills/security-review"><img src="https://agentmods.dev/badge/skills/johnqtcg/awesome-skills/security-review.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 164 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 5,960 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 1 finding, 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 Excessive Agency · line 271
    Skill enables autonomous high-impact decisions without human-in-the-loop verification. Critical operations (destructive commands, financial transactions, data deletion) should require explicit user confirmation.
    Fix: Add human-in-the-loop confirmation for destructive, irreversible, or high-impact operations. Never auto-execute commands that modify files, send data, or alter system state.
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 $0.00164 $0.05960
Opus 5 $0.00082 $0.02980
Sonnet 5 $0.00033 $0.01192
Haiku 4.5 $0.00016 $0.00596

Measured today against content hash bc428aa06ada, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

security-review 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 today.

The scan reads SKILL.md. This mod also ships 8 executable files (scripts/eval_live.sh, scripts/report_validator.py, scripts/run_regression.sh, …), 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

allowed-tools: Read, Grep, Glob, Bash(git diff*), Bash(go vet*), Bash(go build*), Bash(go test -race*), Bash(gosec*), Bash(govulncheck*), Bash(semgrep*), Bash(npm audit*), Bash(curl*), Bash(mvn dependency:tree*), Bash(mv
skills/security-review/SKILL.md · 447 lines

How it starts

The opening of the file, as written. The whole thing — 447 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Security Review

Find exploitable risks early, provide concrete fixes, and keep recommendations practical for engineering delivery.

Quick Reference

If you need to… Go to
Choose review depth (Lite / Standard / Deep) §Review Depth Selection
Run a fast scan (skip Gate B/C/E) Lite depth → Load references/scenario-checklists.md only
Run a full review with all gates (Go) Standard/Deep → Load references/go-secure-coding.md + references/scenario-checklists.md
Review Node.js / TypeScript code Load references/lang-nodejs.md + references/scenario-checklists.md
Review Java / Spring code Load references/lang-java.md + references/scenario-checklists.md
Review Python / FastAPI / Django code Load references/lang-python.md + references/scenario-checklists.md
Calibrate severity (P0–P3) or confidence Load references/severity-calibration.md
Suppress a false positive correctly §False-Positive Suppression Rules
Send any request / run a scanner against a live target §Active Verification Authorization Gate (default deny)

Review Principles

  • Prioritize exploitable risk over style issues.
  • Ground every claim in code/config/runtime evidence.
  • Distinguish confirmed vulnerabilities from hypotheses.
  • Provide reproducible proof for high-risk findings.
  • Map findings to standards for auditability.
  • If evidence is missing, state Not found in repo.
  • Fail closed: if a mandatory gate cannot be executed, state it explicitly and do not claim full coverage.
  • Authorization before action: static review always; touching a running system only under §Active Verification Authorization Gate. Default deny.
  • Execution integrity: never present a command you did not run as if you had. Label unexecuted reproducers explicitly.

Evidence Confidence (Mandatory)

Each finding must include one confidence label:

  • confirmed: vulnerable path proven by code and/or reproducible execution.
  • likely: strong evidence with one missing runtime assumption.
  • suspected: weak evidence requiring additional data.

Read the full file on GitHub · 447 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. today Changed · +36 lines bc428aa06ada
  2. 11d ago First seen · 411 lines · 164 tokens per session scan A ff636eb7630b

Subscribe to this mod's changes

security-review is a skill published in the GitHub repository johnqtcg/awesome-skills (30 stars, last pushed today), licensed MIT. It adds 164 tokens to every session and 5,960 once invoked, about $0.0008 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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