Home / usestrix / strix · skills/web-app-penetration-testing/SKILL.md · GitHub

web-app-penetration-testing skillA

web-app-penetration-testing is agent-read markdown (skill) from usestrix/strix: Pentest a web app or website end to end — black-box testing of a live URL, staging environment, or local dev server that finds and exploits real vulnerabilities (auth bypass, broken access control, IDOR, injection, XSS, SSRF, business logic) and proves each one with a working proof-of-concept instead of a signature match. Runs with Strix, either the self-hosted open-source CLI or the managed app.strix.ai cloud. Use when the user asks to pentest, hack, security-test, or audit their web app, websi.

Indexed from public GitHub and served as immutable, content-addressed versions. Install it pinned to an exact SHA-256 with the mdr CLI, and every file is verified against the hash recorded here before it reaches your agent. The deterministic audit below grades the latest version, and the same file always earns the same grade.

What the file says

# Pentest a web application

Black-box (and optionally source-assisted) penetration testing of a running web app with Strix's autonomous agents. Every reported finding is validated with a working exploit, so there are no signature-based false positives to triage.

Install, LLM setup, all CLI flags, and the managed-cloud alternative are covered in the **penetration-testing-with-strix** skill — read it if the target is not a running web app, or if `strix --version` fails. For a run with no Docker and no LLM key, the same binary drives the managed platform: `strix cloud login`, then `strix cloud scans start ...` (details in **managed-pentesting-with-strix**). This skill is the web-app-specific workflow.

## 1. Confirm authorization and scope

Before running anything, establish:

- **The target is the user's** (or they are explicitly authorized to test it). Never pentest a third-party site on a hunch.
- **Which environment.** Prefer staging over production; agents send real exploit payloads and will create/modify data.
- **Out-of-scope paths** — payment flows, mass-email endpoints, admin destructive actions, third-party SSO providers.
…

Read the whole file at its exact version.

How to install

Latest version
mdr add usestrix/strix/web-app-penetration-testing@git:20260901.42baa7c
Exact content
mdr add usestrix/strix/web-app-penetration-testing@sha256:2e8df0b9233971c4

Pin to a label to follow the author's releases, or to a sha256 to freeze the exact bytes forever. Either way the resolved hash is written to mdr.lock, and mdr install reproduces it on any machine.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_s66c4dhaakfiaxac.svg)](https://markdownregistry.com/a/art_s66c4dhaakfiaxac)

1 badge views in 30 days

Versions

versioncommittedcommitsizeaudit
git:20260901.42baa7c latest2026-09-01 42baa7c 4,320 BA view · diff
git:20260820.90997102026-08-20 9099710 4,130 BA view · diff
git:20260820.b5ef93e2026-08-20 b5ef93e 4,128 BA view

Audit of the latest version

A  17 of 17 checks passed. Deterministic, no model, same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (4320 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
  • pass: No script tag

Source

GitHub

usestrix/strix · 64,366 stars · license Apache-2.0 · pushed 2026-09-23 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_s66c4dhaakfiaxac
GET https://markdownregistry.com/api/v1/resolve?ref=usestrix/strix/web-app-penetration-testing
GET https://markdownregistry.com/api/v1/blob/2e8df0b9233971c496d0c0c7660808fc717c08d4165455a0423229045389608a

Your agent 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.

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