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web-security-auditor

web-security-auditor is a skill for Claude Code, Codex from 0x-Professor/Agent-Skills-Hub. It costs 30 tokens per session (583 once invoked), scanned A, original, Apache-2.0.

A web application security-auditing skill that combines code, dependency, runtime, secret, API, and browser-side checks. SAST checks source code, SCA checks third-party packages, and DAST tests a running application.

In plain words
What is it for?
Use it to scan a web application with tools such as Semgrep, npm audit, Bandit, OWASP ZAP, Gitleaks, and related checks.
Why use it?
It brings several security checks into one review and report, helping identify vulnerabilities, exposed secrets, unsafe settings, and outdated dependencies.

Skill for Claude CodeCodex

Written for Claude Code and Codex: allowed-tools in frontmatter, but also agents/openai.yaml present. Also seen: mentions Codex.

not rated 10repo 6mo ago A scan 30 tokens original Apache-2.0

Good fit Use it to scan a web application with tools such as Semgrep, npm audit, Bandit, OWASP ZAP, Gitleaks, and related checks.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/0x-professor/agent-skills-hub/web-security-auditor
View source ↗ 0x-Professor/Agent-Skills-Hub
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 0x-Professor/Agent-Skills-Hub --skill web-security-auditor
Clone the repo
git clone --depth 1 https://github.com/0x-Professor/Agent-Skills-Hub

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 web-security-auditor

README.md
[![agentmods](https://agentmods.dev/badge/skills/0x-professor/agent-skills-hub/web-security-auditor/github.svg)](https://agentmods.dev/skills/0x-professor/agent-skills-hub/web-security-auditor)
Your own site
<a href="https://agentmods.dev/skills/0x-professor/agent-skills-hub/web-security-auditor"><img src="https://agentmods.dev/badge/skills/0x-professor/agent-skills-hub/web-security-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.

agentmods 80×15 button for web-security-auditor

Your own site · 80×15
<a href="https://agentmods.dev/skills/0x-professor/agent-skills-hub/web-security-auditor"><img src="https://agentmods.dev/badge/skills/0x-professor/agent-skills-hub/web-security-auditor.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 30 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 583 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
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 $0.00030 $0.00583
Opus 5 $0.00015 $0.00292
Sonnet 5 $0.00006 $0.00117
Haiku 4.5 $0.00003 $0.00058

Measured 12d ago against content hash 004ea0208833, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

web-security-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 12d ago.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/security_auditor.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.

skills/web-security-auditor/SKILL.md · 85 lines

How it starts

The opening of the file, as written. The whole thing — 85 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Web Security Auditor

Objective

Perform a comprehensive web application security review aligned to OWASP Top 10 and practical production hardening controls.

Required Workflow

A. Static Analysis (SAST)

  • Run Semgrep for injection, secrets, crypto misuse, and prototype pollution.
  • Run ESLint security plugins (eslint-plugin-security, eslint-plugin-no-unsanitized).
  • Run Bandit for Python codebases.

B. Dependency Scanning (SCA)

  • Run npm audit, pip-audit, or cargo audit by stack.
  • Include Aikido Security or Snyk where available.
  • Include Vulert for no-install open-source dependency checks.

C. Dynamic Analysis (DAST)

  • Run OWASP ZAP automation/headless scans.
  • Optionally run StackHawk.
  • Optionally run Nuclei templates for quick vulnerability sweeps.

D. Secret Detection

  • Run Gitleaks across repository and history.
  • Run TruffleHog scan.

E. Frontend Security Checks

  • Verify CSP (no unsafe inline/eval in production policy).
  • Verify clickjacking protection (X-Frame-Options or frame-ancestors).
  • Verify HSTS.
  • Verify X-Content-Type-Options: nosniff.
  • Verify no sensitive data in localStorage and no exposed production source maps.
  • Check for XSS hazards (dangerouslySetInnerHTML, innerHTML, eval).

F. Backend Security Checks

  • Verify parameterized DB access / ORM usage.
  • Verify strong JWT secret management and token expiry.
  • Verify rate limiting on auth/sensitive routes.
  • Verify strict CORS origins.
  • Verify input validation on all endpoints.
  • Verify secure password hashing (bcrypt/argon2).
  • Check IDOR controls on user-owned resources.

G. API Security

  • Include Akto or Escape.tech checks for business-logic and GraphQL/REST API risks.

Output

  • security-report.json with findings grouped by Critical, High, Medium, Low

Execution

python skills/web-security-auditor/scripts/security_auditor.py --input <workspace> --output <out.json> --format json

References

  • references/tools.md

Read the full file on GitHub · 85 lines

Files

What ships with it

3 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. 12d ago First seen · 85 lines · 30 tokens per session scan A 004ea0208833

Subscribe to this mod's changes

web-security-auditor is a skill published in the GitHub repository 0x-Professor/Agent-Skills-Hub (10 stars, last pushed 6mo ago), licensed Apache-2.0. It adds 30 tokens to every session and 583 once invoked, about $0.0002 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 2026-08-31.

Securityagentic-aiagentskillsclaude-skillscodex-skillsopenclaw-skills
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