PR & SonarQube Review Agent

A GitHub Copilot Chat participant extension that reviews only your uncommitted changes. It provides AI-powered PR review, live SonarQube issue filtering, and JUnit 5 test generation — all scoped to the code you actually changed.

Features

Type @pr-review in GitHub Copilot Chat to use any of these commands:

Command	Description
`/pr-review`	AI-powered code review of uncommitted changes — naming, logic, impact, security, performance, architecture — with APPROVE / REQUEST CHANGES / NEEDS DISCUSSION verdict
`/sonar-check`	Fetches issues from your live SonarQube server, filtered to only the lines you changed — includes quality gate status and project metrics
`/test`	Generates or updates JUnit 5 test cases for changed methods with Copilot-style Accept / Reject UI in the editor

How It Works

Git Diff Detection — Automatically detects uncommitted changes via git diff HEAD
Scoped Analysis — Only reviews files and lines you actually modified
LLM-Powered — Uses GitHub Copilot's language models (GPT-4o, Claude 3.5 Sonnet) for review and test generation

`/pr-review` — AI Code Review

Reviews naming conventions, logic correctness, security, performance, and architecture
Provides a clear verdict: ✅ APPROVE, ⚠️ REQUEST CHANGES, or 💬 NEEDS DISCUSSION
Analyzes impact on existing functionality

`/sonar-check` — Live SonarQube Integration

Connects to your SonarQube server (including self-signed certs)
Fetches only OPEN/CONFIRMED/REOPENED issues
Filters issues to changed lines only — no noise from untouched code
Shows quality gate status and project metrics (bugs, vulnerabilities, code smells, coverage, duplication)
Supports Basic auth with Bearer token fallback (SonarQube 10+)

`/test` — Test Generation

Generates JUnit 5 tests for changed methods using Mockito
For existing test files: merges new test methods without removing existing ones
For new files: creates complete test classes with proper annotations
Uses Copilot-style Accept / Reject UI — review proposed changes before applying
Supports @WebMvcTest for controllers, @ExtendWith(MockitoExtension.class) for services, @DataJpaTest for repositories

Setup

Requirements

VS Code 1.93+
GitHub Copilot Chat extension
A Git repository with uncommitted changes

SonarQube (optional, for `/sonar-check`)

Set your server URL: Settings → PR Review → SonarQube Server URL
Set your project key: Settings → PR Review → SonarQube Project Key
Run command PR Review: Set SonarQube Token to store your auth token securely
Run command PR Review: Test SonarQube Connection to verify

VS Code Commands

Command	Description
`PR Review: Set SonarQube Token`	Store/update/remove your SonarQube authentication token
`PR Review: Test SonarQube Connection`	Verify server reachability, authentication, and project access

Installation

Clone or download this extension
Run npm install and npm run compile
Press F5 to launch the Extension Development Host
Open a project with uncommitted changes and type @pr-review in Copilot Chat

To package as a .vsix:

npm install -g @vscode/vsce
vsce package

PR & SonarQube Review

Mugesh