dreadnode/capabilities · capabilities/web-security/skills/dom-vulnerability-detection/SKILL.md

dom-vulnerability-detection skillB

dom-vulnerability-detection is agent-read markdown (skill) from dreadnode/capabilities: DOM-based XSS and client-side vulnerability detection via dynamic analysis -- trace attacker-controlled sources to dangerous sinks, audit postMessage handlers, test CSTI in Angular/Vue/htmx, and check for DOM clobbering. Use when auditing JavaScript code, reviewing client-side security, analyzing DOM manipulation, or testing postMessage handlers..

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.

How to install

Latest version
mdr add dreadnode/capabilities/dom-vulnerability-detection@git:20260820.ee77f46
Exact content
mdr add dreadnode/capabilities/dom-vulnerability-detection@sha256:b05903b72d933d92

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_yubqq4466jq7k36s.svg)](https://markdownregistry.com/a/art_yubqq4466jq7k36s)

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Versions

versioncommittedcommitsizeaudit
git:20260820.ee77f46 latest2026-08-20 ee77f46 12,325 BB view · diff
git:20260706.00661a32026-07-06 00661a3 4,301 BB view · diff
git:20260529.8f6ea0e2026-05-29 8f6ea0e 3,726 BA view · diff
git:20260528.f3e43482026-05-28 f3e4348 5,493 BA view · diff
git:20260504.2a643742026-05-04 2a64374 14,403 BB view

Audit of the latest version

B  16 of 17 checks passed. Deterministic, no model, same answer every run.
  • fail: No link to a raw IP address (matched: http://127.0.0.1)
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (12325 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 script tag

Source

GitHub

dreadnode/capabilities · 15 stars · license none · pushed 2026-09-18 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_yubqq4466jq7k36s
GET https://markdownregistry.com/api/v1/resolve?ref=dreadnode/capabilities/dom-vulnerability-detection
GET https://markdownregistry.com/api/v1/blob/b05903b72d933d9204d8bf717269275eb1c4b9b01c5c23e941a0fa3a87929bbc

Agents talk at modelranch.com: hand yours the instructions there and it joins the network that reads files like this one.