Claude Pentest Skills

VerifiedCaution

Structured web application penetration testing with OWASP methodology, curated payload references, 6-gate validation, and professional report generation.

Sby Skills Guide Bot
SecurityIntermediate
7/27/2026
Claude Code
#penetration-testing#owasp-wstg#vulnerability-validation#security-reporting#web-security

Recommended for

Automated summary

This skill structures authorized web application penetration testing around the OWASP WSTG methodology, with payload references, a 6-gate validation process, and professional report generation.

Strengths

  • Explicit engagement workflow exposed as commands (/scope, /recon, /hunt, /validate, /report) that forces scope definition before any testing
  • Six-gate validation (reproducible PoC, HTTP evidence, demonstrated impact, in-scope, real vulnerability, client-reproducible) that filters out false positives
  • Built-in traceability through an append-only payload-log.md, a WSTG coverage tracker, and a /status engagement dashboard
  • Separate Recon, Hunter and Validator personas with complementary mindsets, including a deliberately skeptical validator

Limitations

  • Tightly coupled to Claude Code and its slash commands, so it is not directly portable to other agents
  • Delivers methodology and payload references, but no exploitation automation or bundled scanner
  • Output quality depends entirely on how accurately scope is declared and how disciplined the user is about logging payloads
When to use it

Use it for an authorized web pentest where you want a repeatable methodology, an audit trail of payloads, and a structured client report.

When not to use it

Avoid it without explicit written authorization, or for untargeted mass scanning and reconnaissance against third-party domains.

Security analysis

Caution
Quality score82/100

This is a legitimate, well-guarded penetration-testing methodology rather than anything malicious: it mandates an authorization/scope step, forbids out-of-scope and third-party targets, and requires confirmation before destructive actions. However, it is inherently a powerful offensive toolkit — it drives SQLMap/Commix and agent-authored scripts through bash, proxies traffic via Burp MCP, and generates live attack payloads — so listing it warrants a caution rating and user awareness that the guardrails are instruction-only, not technical.

Findings
  • •Dual-use offensive-security skill: instructs the agent to send attack traffic (SQLi, XSS, SSRF, prompt injection, request smuggling, deserialization) against live web targets
  • •Directs execution of powerful external tools via bash (SQLMap, Commix) and custom Python/Bash scripts generated and run at agent discretion
  • •Integrates Burp Suite through MCP for proxied traffic interception and analysis
  • •Writes and maintains engagement state files (payload-log.md, findings.md, scope.md) in the working directory; the payload log is described as an append-only attack history
  • •Safety depends on the agent honoring the /scope gate and 'never test out-of-scope' rules — there is no technical enforcement, so a misused or misconfigured run could hit unintended targets
  • •No obfuscation, no credential/token exfiltration, no curl|sh piping, and it explicitly forbids sending payloads to third-party services (Auth0, AWS, etc.) and requires confirmation before destructive payloads
How this analysis is made

Examples

Start an authorized engagement
/scope https://staging.example-client.com — I have written authorization from the client, the window is today 09:00–17:00 UTC, and out-of-scope is everything under /admin and any third-party auth provider.
Hunt a specific vulnerability class
/hunt idor on the order history and invoice endpoints discovered during recon, and log every payload attempt before analyzing responses.
Validate and report
/validate the findings from this engagement, drop anything that fails the 6 gates, then /report --full to produce the markdown and PDF deliverables.

name: claude-pentest-skills description: Structured web application penetration testing with OWASP methodology, curated payload references, 6-gate validation, and professional report generation

Claude Pentest Skills

Structured methodology, curated payload references, and strict validation processes for authorized web application penetration testing.

When to use

Use this skill when performing authorized web application penetration testing. It provides:

  • A structured engagement workflow: scope definition, reconnaissance, vulnerability hunting, finding validation, and report generation
  • OWASP Web Security Testing Guide (WSTG) methodology with coverage tracking
  • 18 vulnerability class references with PayloadAllTheThings links
  • A 6-gate validation process that eliminates false positives
  • Professional pentest report generation (markdown + PDF)

Only use against systems you own or have explicit written authorization to test.

Instructions

Standard Workflow

/scope <target>     → Define authorization (REQUIRED first step)
/recon <target>     → Map attack surface (endpoints, tech stack, inputs)
/hunt <vuln-class>  → Test for a specific vulnerability class
/validate           → Run 6-gate quality check on findings
/report --full      → Generate professional pentest report
/status             → View engagement progress dashboard

Safety Rules (Non-Negotiable)

  1. Never test without running /scope first
  2. Never send requests to out-of-scope domains or paths
  3. Always log every payload attempt before analyzing the response
  4. Stop and ask the user if uncertain whether an action is in scope
  5. Warn and get confirmation before testing destructive payloads (DELETE, data modification)
  6. Never send attack payloads to third-party services (Auth0, AWS, etc.) — only test the client's own infrastructure

Hunt Targets

Valid arguments for /hunt:

| Group | Includes | |-------|----------| | injection | SQLi, NoSQLi, CMDi, SSTI, XXE | | auth-access | IDOR, JWT, OAuth, privilege escalation | | server-side | SSRF, path traversal, file upload, deserialization, request smuggling | | client-side | XSS, CSRF, open redirect | | session | Session fixation, token weakness, cookie security | | business-logic | Race conditions, workflow bypass, logic flaws | | config | Security headers, CORS, TLS, info disclosure | | ai-llm | Prompt injection, LLM tool abuse, system prompt leakage |

Specific sub-classes also work: /hunt sqli, /hunt xss, /hunt ssrf, /hunt idor, /hunt prompt-injection, etc.

Agent Personas

Three specialized personas are activated by commands:

  • Recon Agent (/recon) — Systematic mapper. Passive-first, methodical, records everything.
  • Hunter Agent (/hunt) — Creative attacker. Tries bypass techniques, iterates on partial success, logs every payload.
  • Validator Agent (/validate) — Skeptical critic. Assumes false positive until proven otherwise. Runs the 6-gate quality check.

When no command is active, behave as a general security consultant.

6-Gate Validation

Every finding must pass all 6 gates to be included in reports:

  1. Reproducible PoC — Complete HTTP request that triggers the vulnerability
  2. HTTP Evidence — Both request AND response captured
  3. Impact Verified — Concrete and demonstrated, not theoretical
  4. In-Scope — Endpoint is within authorized scope
  5. Real Vulnerability — Not informational or best-practice observation
  6. Client Reproducible — A third party can follow the documented steps

Engagement State

All engagement data is stored in engagements/<target>/:

  • scope.md — Authorization and scope boundaries
  • findings.md — Finding table with detailed evidence
  • payload-log.md — Append-only payload testing history
  • coverage.md — OWASP WSTG test coverage tracker
  • tech-stack.md — Discovered technologies
  • notes.md — Observations and hypotheses

Tool Integration

  • Burp Suite — Available via MCP for proxy and traffic analysis (see mcp/burp-suite/setup.md)
  • SQLMap — Use via bash only after manual detection confirms SQL injection
  • Commix — Use via bash only after manual detection confirms command injection
  • Custom scripts — Generate and execute Python/Bash scripts for race conditions, token analysis, and custom payload delivery

File Loading

When a slash command is invoked, load files in this order:

  1. commands/<command>.md — Command orchestration
  2. agents/<agent>.md — Agent persona (if command activates one)
  3. skills/<skill>.md — Methodology
  4. payloads/<payload>.md — Payload reference (if hunting)
  5. engagements/<target>/<state-files> — Current engagement state

Load on demand, not all at startup.

From the file to a first result

The download contains exactly the content displayed on this page. This copy may differ from the latest version in the source repository.

View the source and supporting files

This download contains SKILL.md only. Any scripts, references, templates and dependencies are not included. Get the required files from the source, preserving their directory structure, before continuing.

1. Download the file

Download SKILL.md

From the root of a test project, save the file as .skill-downloads/claude-pentest-skills-ms2s7c7j/SKILL.md, or use the command below. This folder is for inspecting the skill before installation.

Command for macOS/Linux or WSL: requires a POSIX shell and curl. On Windows without WSL, use the download button and create the folder manually.

mkdir -p '.skill-downloads/claude-pentest-skills-ms2s7c7j' && curl --fail --show-error --location 'https://skills-guides.com/api/skills/claude-pentest-skills-ms2s7c7j/download' --output '.skill-downloads/claude-pentest-skills-ms2s7c7j/SKILL.md.part' && mv '.skill-downloads/claude-pentest-skills-ms2s7c7j/SKILL.md.part' '.skill-downloads/claude-pentest-skills-ms2s7c7j/SKILL.md'

2. Check prerequisites

Read SKILL.md before using it. If it references scripts or external services, inspect them and prepare the required access in your test environment.

No recognized prerequisites section in this file. This does not mean it is self-contained: libraries, tools and access requirements may be mentioned elsewhere in the content or source repository.

The platforms on this page are catalog indications. The paths below follow tool documentation; they do not prove this skill has been run in those tools. No minimum tool version is confirmed for this listing.

3. Load the skill

After inspection, copy the complete folder into your project using one of the commands below, then open a new tool session. The command stops if a folder with the same name already exists: compare the files before replacing it.

Claude Code
test -f '.skill-downloads/claude-pentest-skills-ms2s7c7j/SKILL.md' && test -s '.skill-downloads/claude-pentest-skills-ms2s7c7j/SKILL.md' && mkdir -p '.claude/skills' && test ! -e '.claude/skills/claude-pentest-skills' && cp -R '.skill-downloads/claude-pentest-skills-ms2s7c7j' '.claude/skills/claude-pentest-skills'

OpenSkills

OpenSkills must already be installed. The local install/read procedure is checked with OpenSkills 1.5.0, which requires Node.js ≥ 20.6.0. Catalog slugs are not resolved automatically.

Official OpenSkills installation
openskills install './.skill-downloads/claude-pentest-skills-ms2s7c7j'

openskills read 'claude-pentest-skills-ms2s7c7j'

Reading should display the installed file content and its base directory. It does not run the skill or install its dependencies.

For an agent that reads AGENTS.md, then sync the index. This command changes AGENTS.md: review the diff before using it.

openskills sync

Manual method or another tool: attach SKILL.md to a conversation, or open it in an agent that can read files. Include any required supporting resources. No universal folder is recognized by every tool.

4. Try a first task

Use a short, synthetic input: an API endpoint, a small document or an interface brief. In a new conversation, attach the file or give the agent its path, then adapt this request:

Read .skill-downloads/claude-pentest-skills-ms2s7c7j/SKILL.md and apply its instructions to this example: [describe a test input]. Identify any missing files, dependencies or access. Produce the result requested by the skill without inventing data or running unreviewed scripts.

Expected result: output matching the skill instructions, or a precise list of missing prerequisites. A read confirmation alone does not validate a first use. If an external resource is unavailable, that path remains untested.

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