LGTM AI

Automate PR review application with Claude Code.

Browse GitHub PR review comments and apply code changes in real-time using Claude Code.

Getting Started

Prerequisites

• Node.js 20.19, 22.12, or 24.0+
• GitHub CLI (authenticated via gh auth login)
• Claude Code CLI (installed and configured)

Run

npx lgtmai

This automatically opens a browser and launches the UI.

Features

• PR Browsing — Browse and view PR lists and details from GitHub repositories
• Claude Code Execution — Run Claude Code with PR review context to automatically apply code changes
• Real-time Streaming — Stream Claude Code output in real-time via WebSocket
• Chat Session Persistence — Save and replay conversation history per PR
• PR Branch Checkout — Switch to a PR branch directly from the UI (with stash support)
• Multi-project Management — Register and manage multiple local git repositories

How to Use

1. Run npx lgtmai
2. Add a project (local git repository)
3. Select a PR to review from the PR list
4. Enter a prompt for Claude Code (review comments are automatically included as context)
5. Watch the execution results stream in real-time

Environment Variables

| Variable | Default | Description | |----------|---------|-------------| | DB_PATH | ~/.lgtmai/lgtmai.db | SQLite database file path | | PORT | 5051 | Backend server port |

Architecture

pnpm workspaces monorepo.

npx lgtmai (CLI)
├── backend/   Express API server (port 5051)
│              ├── GitHub CLI integration (gh api)
│              ├── Claude Code CLI integration (claude)
│              └── SQLite DB (Prisma + LibSQL)
└── frontend/  React 19 + Vite UI (port 5050)
               └── /api/* → proxied to backend

| Package | Role | |---------|------| | cli/ | Prerequisite validation, server launch, browser open | | backend/ | REST API + WebSocket server | | frontend/ | React UI |