Documentation

Concept and current scope

extend is a modular pull request reviewer concept. The base reviewer is designed to be strengthened with specialist extensions, such as Rails expertise, security review, testing strategy, or a team's internal review standards.

Extension model

The intended product model is a base GitHub App plus optional paid extensions. A repository could attach a Rails expert for Active Record and migration review, then add a security reviewer for authentication and permission-sensitive changes.

Recommended prototype usage

1. Install the app only in a test repository.
2. Confirm that the GitHub App installation flow completes.
3. Confirm that the Marketplace plan is visible on the listing.
4. Do not rely on the app for review output in its current version.

Current behavior

• The webhook endpoint can accept GitHub events and return a successful response.
• GitHub App credentials and repository permissions are required before PR diffs can be fetched.
• Review posting remains disabled unless explicitly enabled in environment configuration.
• No customer repository data is stored by the prototype.
• No external AI provider receives repository data.

Prepared reviewer flow

The backend is prepared for a future pull request flow: receive a pull request event, authenticate as a GitHub App installation, fetch the PR diff, run enabled extensions, and generate a review body. Review posting remains disabled until app permissions and disclosures are updated.

GitHub App

Current prototype app page: https://github.com/apps/empty-review-bot-20260602114229