web-pentest SKILL.md skillB
web-pentest from hypnguyen1209/offensive-claude is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add hypnguyen1209/offensive-claude/web-pentest@git:20261022.5fbfc7fPins git:20261022.5fbfc7f in mdr.lock. Pin the fingerprint instead.
- Audit grade
- B, 16 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- hypnguyen1209/offensive-claude
- Path
skills/web-pentest/SKILL.md- Versions recorded
- 7
- Latest version
- git:20261022.5fbfc7f, committed Oct 22, 2026
- First version recorded
- Jun 28, 2026
- Size
- 12,250 bytes
- Repository stars
- 414
- License
- MIT
Use when pentesting a web application or API — injection, XSS/CSP, SSRF/cloud-metadata, HTTP desync & cache poisoning, SSTI/prototype-pollution/deserialization, JWT/OAuth/GraphQL/IDOR, business logic & single-packet race.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Web Application Penetration Testing ## When to Activate - Web application security assessment (black/grey/white box) - API security testing (REST, GraphQL, WebSocket) - Authentication & session management testing (JWT, OAuth/OIDC, SAML) - Business-logic and race-condition hunting - WAF/CSP bypass, filter evasion, and CDN-layer attacks (desync, cache) - Validating modern 2024-2026 vectors: HTTP/1.1 desync (0.CL/TE.0), SSRF->cloud metadata, prototype-pollution->RCE, SSTI sandbox escapes ## Input-Signal Routing (what to test when you see X) Fast test selection — map an observed parameter/behavior to the right deep-dive: | Input signal you observe | Test for | Go to | |--------------------------|----------|-------| | `id`, `uid`, `order_id`, `account`, GUID/sequential ref | IDOR/BOLA, access control | references/auth-api-access-control.md | | `url`, `next`, `callback`, `dest`, `webhook`, `image_url` | SSRF + cloud metadata, open redirect, OAuth chain | references/ssrf-cloud-metadata.md | | `price`, `qty`, `coupon`, `balance`, `status`, state change | business logic + single-packet race | references/http-desync-cache.md (race) | …
Read the whole file at its exact version.
How to install
mdr add hypnguyen1209/offensive-claude/web-pentest@sha256:d8bd93f03ba34899The line at the top of this page pins the label git:20261022.5fbfc7f, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_ztjzaeckyp73bygi)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 7 versions of this file, between Jun 28, 2026 and Oct 22, 2026, about one every 19 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261022.5fbfc7f latest | 2026-10-22 | 5fbfc7f | 12,250 B | B | view · diff |
| git:20260928.88dbac7 | 2026-09-28 | 88dbac7 | 11,116 B | B | view · diff |
| git:20260916.d4cb295 | 2026-09-16 | d4cb295 | 10,402 B | B | view · diff |
| git:20260629.9f4a1a5 | 2026-06-29 | 9f4a1a5 | 9,728 B | B | view · diff |
| git:20260629.82b101d | 2026-06-29 | 82b101d | 9,742 B | B | view · diff |
| git:20260629.5dc0f8d | 2026-06-29 | 5dc0f8d | 9,499 B | B | view · diff |
| git:20260628.075dde7 | 2026-06-28 | 075dde7 | 8,218 B | B | view |
Audit of the latest version
- fail: No script tag (matched: <script)
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (12250 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
Starting a new one? Use a template for SKILL.md on mdpantry, which passes every one of these checks and says what to change in it.
Source
hypnguyen1209/offensive-claude · 414 stars · license MIT · pushed 2026-10-22 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_ztjzaeckyp73bygi GET https://markdownregistry.com/api/v1/resolve?ref=hypnguyen1209/offensive-claude/web-pentest GET https://markdownregistry.com/api/v1/blob/d8bd93f03ba348995ec2ef2d940ba620d80c67db985957542687cf6253199e38
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.
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