oauth-implementation SKILL.md skillA
oauth-implementation from mindrally/skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add mindrally/skills/oauth-implementation@git:20261008.7682ca7Pins git:20261008.7682ca7 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- mindrally/skills
- Path
oauth-implementation/SKILL.md- Versions recorded
- 2
- Latest version
- git:20261008.7682ca7, committed Oct 8, 2026
- First version recorded
- Jan 23, 2026
- Size
- 10,003 bytes
- Repository stars
- 301
- License
- Apache-2.0
Guidelines for implementing OAuth 2.0 and OAuth 2.1 authentication flows with security best practices and PKCE.
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
# OAuth Implementation
You are an expert in OAuth 2.0 and OAuth 2.1 implementation. Follow these guidelines when implementing OAuth authentication flows.
## Core Principles
- Always use OAuth 2.1 patterns (PKCE required, no implicit flow)
- Use HTTPS for all OAuth communications
- Implement proper state management for CSRF protection
- Follow the principle of least privilege for scopes
- Validate all tokens server-side
## OAuth 2.1 Key Requirements
OAuth 2.1 consolidates best practices and deprecates insecure patterns:
- PKCE is required for ALL clients using authorization code flow
- Implicit grant is removed
- Resource Owner Password Credentials grant is removed
- Redirect URIs must use exact string matching
- Refresh tokens must be sender-constrained or use rotation
## Authorization Code Flow with PKCE
### Step 1: Generate PKCE Parameters
```javascript
// Generate cryptographically secure code verifier
function generateCodeVerifier() {
const array = new Uint8Array(32);
crypto.getRandomValues(array);
return base64URLEncode(array);
}
// Create code challenge from verifier
async function generateCodeChallenge(verifier) {
const encoder = new TextEncoder();
…Read the whole file at its exact version.
How to install
mdr add mindrally/skills/oauth-implementation@sha256:589043a74c4ac2a0The line at the top of this page pins the label git:20261008.7682ca7, 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_zbp5cf2u34upirot)
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Versions
The registry has recorded 2 versions of this file, between Jan 23, 2026 and Oct 8, 2026, about one every 258 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261008.7682ca7 latest | 2026-10-08 | 7682ca7 | 10,003 B | A | view · diff |
| git:20260123.47f47c1 | 2026-01-23 | 47f47c1 | 9,923 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (10003 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
mindrally/skills · 301 stars · license Apache-2.0 · pushed 2026-10-08 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_zbp5cf2u34upirot GET https://markdownregistry.com/api/v1/resolve?ref=mindrally/skills/oauth-implementation GET https://markdownregistry.com/api/v1/blob/589043a74c4ac2a074e264832b9905677d33b2bfc2deda4b70fb6d75e57f83f4
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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