Guide · Agent skill
How to use the OAuth 2.0 Flow Configuration agent skill
Updated · written with AI from the project's own documentation and checked against our catalogue data
This is an agent skill that gives an AI agent a checklist-style guide for setting up OAuth 2.0 sign-in and access tokens. OAuth lets an app log users in or call APIs without handling their passwords directly. After reading this guide you will know how to install the skill, ask for help with the right requests, and run its audit script safely against a test or authorized issuer.
OAuth 2.0 Flow Configurationmukul975/Anthropic-Cybersecurity-Skills · Apache-2.0 Download the skill Quick start
- 1Download the ZIP. Download the skill ZIP from this page.
- 2Install the skill. Unzip it into ~/.claude/skills/ for personal use or into .claude/skills/ in a project, or upload the ZIP under Settings → Capabilities → Skills.
- 3Ask a natural question. Describe your app type and OAuth goal in plain language, such as choosing a flow or setting up PKCE.
- 4Install the script dependency. If you want to run the discovery check, install Python 3.8+ and run pip install requests.
- 5Audit only an authorized issuer. Point the script at a test or authorized issuer URL and review the results against the checklist.
What the skill makes the agent do
The skill covers flow selection, PKCE implementation, token lifecycle management, and scope design, aligned to OAuth 2.1 requirements. It covers Authorization Code with PKCE, Client Credentials, and the Device Authorization Grant.
It also includes Python scripts that can query an identity provider's public discovery page and check its settings against security best practices. The guidance is generic and does not cover your specific provider's quirks.
- Choose a grant type for a web, mobile, single-page, or server-to-server app
- Walk through PKCE steps: code_verifier, code_challenge with S256, and token exchange
- Recommend access token and refresh token lifetimes and rotation
- Design granular scopes with least privilege
How to install the skill
Download the skill ZIP from this page and unzip it into one of two locations. Use ~/.claude/skills/ to make it available across your projects, or use a project's .claude/skills/ folder to limit it to that project.
You can also upload the ZIP in the Claude apps under Settings → Capabilities → Skills.
- Personal install: unzip into ~/.claude/skills/
- Project install: unzip into .claude/skills/ inside your project
- App install: upload the ZIP under Settings → Capabilities → Skills
How to trigger the skill with natural requests
You do not need a special command. Describe the OAuth task in plain language, and the agent should use the skill when your request matches its purpose of implementing or hardening OAuth 2.0 authentication or authorization.
Name your client type and environment where you can, since the skill's flow advice depends on whether the client is web, mobile, SPA, or machine-to-machine.
- Help me choose between authorization code with PKCE and client credentials for my mobile app.
- Walk me through PKCE setup for a single-page app.
- Recommend token lifetimes and refresh token rotation for my API.
- Design scopes for a service that reads orders and writes settings.
- Review my OAuth config checklist before we go to staging.
Run the discovery check script (what it needs)
The scripts/agent.py script queries an issuer's OIDC discovery document and checks its settings. It needs Python 3.8 or newer and the requests library, and it needs an OAuth issuer URL to audit in a test or authorized environment.
The discovery document is read from the standard path under the issuer, which returns endpoints, supported grant types, and scopes.
- Install the dependency with pip install requests
- Provide an issuer URL you are authorized to test
- The script sends requests to whatever issuer URL you give it
pip install requestsSafety notes before you run anything
The skill runs scripts and uses the network. The audit script sends requests to whatever issuer URL it is given, so only point it at a test or lab environment or a provider you have written authorization to audit. Do not run it against a live production identity provider or a third-party service without that authorization.
Treat the skill's output as a checklist, not a substitute for a vetted identity library or managed service. Hand-written token handling can still contain mistakes.
- Use only test, lab, or explicitly authorized issuers
- Review any script before running it, as with any downloaded code
- Prefer a vetted OAuth or OIDC library over hand-written token code
What people use it for
- A developer choosing Authorization Code with PKCE for a React single-page app
- A team planning refresh token rotation and short access token lifetimes for a web API
- A security engineer checking an identity provider's discovery settings in a lab
- A student learning how PKCE, client credentials, and token rotation fit together
Frequently asked questions
What is the configuring-oauth2-authorization-flow skill?
It is an agent skill that gives an AI agent a checklist-style guide for configuring OAuth 2.0 flows, including PKCE, client credentials, token lifecycle, and scope design. It also includes Python scripts that query an issuer's public discovery page and check its settings.
What do I need to use this skill?
You need an agent that supports skills, and for the audit script you need Python 3.8 or newer and the requests library. You also need an OAuth issuer URL to audit in a test or authorized environment.
Is this skill free to use?
The skill is listed under the Apache-2.0 licence. Check the licence file in the download for the full terms before you reuse or redistribute it.
How do I install an agent skill?
Download the ZIP from this page and unzip it into ~/.claude/skills/ for personal use or into .claude/skills/ in a project. You can also upload the ZIP in the Claude apps under Settings → Capabilities → Skills.
Is it safe to run the audit script against my provider?
Only run it against a test or lab issuer, or a provider you are authorized to audit in writing. The script sends requests to whatever issuer URL you give it, so pointing it at a live production service without authorization is not appropriate.
How is this different from a library like authlib?
The skill is guidance for an agent plus a few scripts, while libraries such as authlib implement OAuth 2.0 and OIDC in your code. The skill's own reference lists authlib and PyJWT as options, and it recommends a vetted library over hand-written token handling.
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Our verdict
Use this skill if you are a developer, security engineer, or student who wants a clear checklist and an agent that can explain OAuth flows, PKCE, and token rotation. Pick a managed identity service or a vetted OAuth library instead if you need provider-specific behaviour or are implementing token handling for production systems without a review.
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