The Missing Manual for Coding Agents: Claude Code, Copilot, Codex, Cursor, Antigravity - Skills, MCP, Plugins, Subagents

AI Vibe Engineer

A comprehensive repository showcasing multiple AI-powered Kanban board implementations and learning projects built as part of the Complete AI Coder Course. This repository demonstrates how different AI coding assistants (Codex, Cursor, Cursor, and Antigravity) can be used to build the same project with varying approaches and results.

Project Overview

This repository contains 5 complementary projects:

1. Antigravity Kanban

A modern Kanban board implementation with advanced features.

• Tech Stack: Next.js, TypeScript, React
• Features:
  • Drag-and-drop card management
  • Renameable columns (To Do, In Progress, In Review, Done, Archived)
  • Add/delete/move cards between columns
  • Full test coverage with Vitest
  • E2E testing with Playwright
  • ESLint configuration for code quality

Quick Start:

cd antigravity_kanban/frontend
npm install
npm run dev

Visit: http://localhost:3000

Testing:

npm run lint
npm run test
npm run test:e2e

2. Codex Kanban

Kanban implementation built with OpenAI's Codex AI assistant.

• Tech Stack: Next.js, TypeScript, React
• AI Assistant: OpenAI Codex
• Highlights:
  • Community contributions and agent configurations
  • Comprehensive AGENTS.md for AI-assisted development
  • Production-ready implementation

Quick Start:

cd codex_kanban/frontend
npm install
npm run dev

Documentation:

• AGENTS.md - AI assistant configuration
• Community Contributions

3. Cursor Kanban

Full-featured Kanban board built with GitHub Copilot.

• Tech Stack: Next.js, React, Jest, Playwright
• AI Assistant: GitHub Copilot
• Features:
  • Complete implementation with all MVP features
  • Jest unit tests
  • Playwright E2E tests
  • Context management with React Context
  • Comprehensive documentation

Quick Start:

cd copilot_kanba