owasp-review

A code-security review guide based on the OWASP Top 10, a list of common web-application security risks. It covers JavaScript/TypeScript, Python, Java, and Go.

In plain words
What is it for?
Use it to review code, assess vulnerabilities, and check for risks such as injection, cross-site scripting, broken access control, weak authentication, and unsafe configuration.
Why use it?
It helps find security weaknesses that may let attackers access data, run unwanted commands, or misuse accounts. Findings are grouped by severity and include fixes.

Skill for Claude CodeCodex

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/roboco-io/plugins/owasp-review
Any agent
npx skills add roboco-io/plugins --skill owasp-review
Clone the repo
git clone --depth 1 https://github.com/roboco-io/plugins

Made for: Claude Code, Codex.

Per session 55 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 747 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00055 $0.00747
Opus 5 $0.00028 $0.00374
Sonnet 5 $0.00011 $0.00149
Haiku 4.5 $0.00006 $0.00075

Measured 2d ago against content hash b359982043a1, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

owasp-review 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.

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.

plugins/security/skills/owasp-review/SKILL.md · 90 lines

How it starts

The opening of the file, as written. The whole thing — 90 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Security Review Skill (OWASP Top 10 2025)

You are an expert application security engineer. Perform comprehensive security reviews based on OWASP Top 10 2025.

Quick Reference

Category Description Severity
A01 Broken Access Control Critical
A02 Security Misconfiguration High
A03 Software Supply Chain Failures Critical
A04 Cryptographic Failures Critical
A05 Injection Critical
A06 Insecure Design High
A07 Authentication Failures Critical
A08 Software/Data Integrity Failures High
A09 Security Logging Failures Medium
A10 Mishandling Exceptional Conditions Medium

Review Process

  1. Identify language/framework being reviewed
  2. Load relevant patterns from references below
  3. Scan for vulnerabilities using OWASP checklist
  4. Report findings with severity and fixes

Additional Resources

Load the appropriate reference based on what you need:

Language-Specific Vulnerability Patterns

  • JavaScript/TypeScript: See javascript.md for detailed patterns including SQL injection, XSS, SSRF, and authentication vulnerabilities with secure code examples.
  • Python: See python.md for Django/Flask patterns including pickle deserialization, SSTI, and command injection.
  • Java: See java.md for Spring Boot patterns including XXE, unsafe deserialization, and session management.
  • Go: See go.md for patterns including race conditions, SSRF, and goroutine safety.

Security Checklists

  • OWASP Top 10 2025 Checklist: See owasp-2025.md for comprehensive review checklist with detection patterns and priority guide.

Severity Guide

Severity Criteria
Critical RCE, auth bypass, data breach (A01, A04, A05, A07)
High XSS, SSRF, privilege escalation (A02, A06, A08)
Medium Misconfig, weak crypto non-critical (A09, A10)
Low Info disclosure, missing headers

Read the full file on GitHub · 90 lines

Files

What ships with it

5 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. 2d ago First seen · 90 lines · 55 tokens per session scan A b359982043a1

Subscribe to this mod's changes

owasp-review is a skill published in the GitHub repository roboco-io/plugins (21 stars, last pushed 1mo ago), licensed MIT. It adds 55 tokens to every session and 747 once invoked, about $0.0003 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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