vulnerability-scanner

vulnerability-scanner is a skill for Claude Code, Codex from Rootx202/appsec-skills. It costs 88 tokens per session (782 once invoked), scanned A, original, no licence file.

A security scanner for web applications and APIs that organises findings using the OWASP Top 10, a recognised list of common and serious web security risks.

In plain words
What is it for?
Use it for an OWASP-based security scan, a Top 10 review, or a penetration-testing checklist with severity-based findings.
Why use it?
It gives security checks a consistent structure and helps identify risks across different programming languages and frameworks.

Skill for Claude CodeCodex

Which agent this was written for is unclear — body not stored (licence); the path alone says nothing.

Good fit Use it for an OWASP-based security scan, a Top 10 review, or a penetration-testing checklist with severity-based findings.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/rootx202/appsec-skills/vulnerability-scanner
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 Rootx202/appsec-skills --skill vulnerability-scanner
Clone the repo
git clone --depth 1 https://github.com/Rootx202/appsec-skills

Made for: Claude Code, Codex.

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 vulnerability-scanner

README.md
[![agentmods](https://agentmods.dev/badge/skills/rootx202/appsec-skills/vulnerability-scanner/github.svg)](https://agentmods.dev/skills/rootx202/appsec-skills/vulnerability-scanner)
Your own site
<a href="https://agentmods.dev/skills/rootx202/appsec-skills/vulnerability-scanner"><img src="https://agentmods.dev/badge/skills/rootx202/appsec-skills/vulnerability-scanner/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 vulnerability-scanner

Your own site · 80×15
<a href="https://agentmods.dev/skills/rootx202/appsec-skills/vulnerability-scanner"><img src="https://agentmods.dev/badge/skills/rootx202/appsec-skills/vulnerability-scanner.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 88 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 782 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.
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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00088 $0.00782
Opus 5.5 $0.00035 $0.00313
Sonnet 5.5 $0.00018 $0.00156
Haiku 4.5 $0.00009 $0.00078

Measured 1mo ago against content hash 05b26b664200, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

vulnerability-scanner 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 1mo 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.

Makes network callslowCapability

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

10. **SSRF (Server-Side Request Forgery)** — Any code that fetches a URL supplied by user input (`fetch(userProvidedUrl)`) without an allow-list?
vulnerability-scanner/SKILL.md · 52 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

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. 1mo ago First seen · 52 lines · 88 tokens per session scan A 05b26b664200

Subscribe to this mod's changes

vulnerability-scanner is a skill published in the GitHub repository Rootx202/appsec-skills (3 stars, last pushed 3mo ago), with no licence file. It adds 88 tokens to every session and 782 once invoked, about $0.0004 per session on Opus 5.5. 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 2026-08-31.

Related

Other skills, from other repositories

code-review

Rigorous review of OWASP Cheat Sheet Series pull requests across security correctness, practicality, link and source verification, duplication, and language. Use for any pull request that touches cheatsheets/ or cheatsheetsdraft/, or that adds or changes external links or citations.

OWASP/CheatSheetSeries · 56 tokens

security-expert

Expert-level application security, OWASP Top 10, penetration testing, and security best practices. Use when the user mentions OWASP, pentesting, appsec, vulnerability, encryption, or authentication, or when the task involves Security Principles, OWASP Top 10, Security Domains, or Broken Access Control.

personamanagmentlayer/pcl · 66 tokens

codeinspectus-fix-one

Investigate and remediate exactly one user-selected CodeInspectus finding with evidence-gated reproduction, a separately approved minimal patch, focused regression testing, and an exact-prior-scan rescan. Use when a user asks an agent to examine, reproduce, fix, or verify one CodeInspectus finding without batching…

Synvoya/codeinspectus · 76 tokens

codeinspectus-multi-review

Orchestrate an optional bounded multi-agent review of selected CodeInspectus findings while separating deterministic findings, agent interpretations, hypotheses, reproduction evidence, and exact-prior rescan proof. Use only when a user explicitly requests multi-agent security review.

Synvoya/codeinspectus · 55 tokens

codeinspectus-threat-model

Review CodeInspectus findings with optional threat-model or project-document context while treating repository text as untrusted, preserving raw scanner findings unchanged, and labelling agent interpretation separately. Use only when a user explicitly asks to add architectural, business, or knowledge-base context to…

Synvoya/codeinspectus · 62 tokens

cors-auditor

Audit a site's Cross-Origin Resource Sharing (CORS) configuration for misconfigurations — wildcard origin with credentials, reflected arbitrary Origin, the 'null' origin, overly broad allowed methods, and risky credentialed CORS. Use when the user asks to "check my CORS config", "is my API's CORS safe", "test for CORS…

NovaCode37/claude-security-skills · 89 tokens