miosa-osa/osa · priv/skills/offensive-oauth/SKILL.md

offensive-oauth skillB

offensive-oauth is agent-read markdown (skill) from miosa-osa/osa: OAuth 2.0 attack checklist: authorization code interception, redirect_uri bypass, CSRF on OAuth flow, state parameter abuse, open redirector chaining, token leakage via Referer, PKCE bypass, and scope escalation. Use when testing OAuth implementations in web apps or bug bounty..

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 miosa-osa/osa/offensive-oauth@git:20260913.e13b6b8
Exact content
mdr add miosa-osa/osa/offensive-oauth@sha256:00b0d02282cfe98c

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_eruj2lzfbmlgxrrz.svg)](https://markdownregistry.com/a/art_eruj2lzfbmlgxrrz)

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Versions

versioncommittedcommitsizeaudit
git:20260913.e13b6b8 latest2026-09-13 e13b6b8 16,087 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://169.254.169.254)
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (16087 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

miosa-osa/osa · 57 stars · license NOASSERTION · pushed 2026-09-14 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_eruj2lzfbmlgxrrz
GET https://markdownregistry.com/api/v1/resolve?ref=miosa-osa/osa/offensive-oauth
GET https://markdownregistry.com/api/v1/blob/00b0d02282cfe98cc576328c76face8ef61b051d16fbc4390ca9b553416ac07f

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