auth-matrix-testing SKILL.md skillA

auth-matrix-testing from dreadnode/capabilities is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add dreadnode/capabilities/auth-matrix-testing@git:20260504.2a64374

Pins git:20260504.2a64374 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
dreadnode/capabilities
Path
capabilities/web-security/skills/auth-matrix-testing/SKILL.md
Versions recorded
1
Latest version
git:20260504.2a64374, committed May 4, 2026
Size
10,679 bytes
Repository stars
22
License
MIT

Systematic authentication, authorization, privilege escalation, and IDOR testing methodology. Enforces multi-attempt escalation with bypass techniques at every access control boundary. Use when testing auth/authz, role matrices, IDOR, horizontal/vertical privilege escalation, or business logic access controls.

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

# Auth Matrix Testing

Systematic methodology for testing every access control boundary. Two phases: accuracy-first ledger building, then escalation with advanced bypasses.

## Usage

```
/auth-matrix-testing <target>
```

## Phase 1: Map and Test (Accuracy)

### 1.1 Build the endpoint inventory

Scour all available sources to build a complete endpoint map:

- Proxy history and sitemap (filter by domain, status codes, content types)
- JavaScript source (route definitions, API client configs, permission checks)
- Static analysis matches (API routes, fetch calls, GraphQL operations)
- OpenAPI/Swagger specs if available
- robots.txt, sitemap.xml
- HTML source for hidden forms, AJAX endpoints, admin links

For each endpoint, document:

```
METHOD /path — description — auth required? — roles allowed — params — notes
```

### 1.2 Map the permission matrix

Identify all roles/permission levels available. For each endpoint test with:

| Context | What to send |
|---------|-------------|
| **Unauthenticated** | No session/token |
| **Low-privilege user** | Account A session |
| **Same-privilege peer** | Account B session (horizontal) |
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add dreadnode/capabilities/auth-matrix-testing@sha256:82e54f40de52470a

The line at the top of this page pins the label git:20260504.2a64374, 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.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_7ff7oju2dj3iet4k.svg)](https://markdownregistry.com/a/art_7ff7oju2dj3iet4k)

3 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 1 version of this file, committed on May 4, 2026.

versioncommittedcommitsizeaudit
git:20260504.2a64374 latest2026-05-04 2a64374 10,679 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the 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 (10679 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

dreadnode/capabilities · 22 stars · license MIT · pushed 2026-11-02 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_7ff7oju2dj3iet4k
GET https://markdownregistry.com/api/v1/resolve?ref=dreadnode/capabilities/auth-matrix-testing
GET https://markdownregistry.com/api/v1/blob/82e54f40de52470af36bb979f6562abae32abb61ff78fe9bb9ae2d9e001b851c

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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