I Tried OpenAI's New Codex Agent. Here are my First Impressions (It's Really Good)

OpenAI just dropped Codex, a beautiful new GUI for their AI coding agent, and after a day of testing, I'm genuinely impressed. Let me show you why this might change how developers work with AI. In this video, I take you on a complete tour of OpenAI's new Codex application for macOS. We explore the stunning interface, the impressive multi-threaded workflow, automations, skills, and MCP server integrations. Then I put it to the test by building a complete Java 25 vending machine CLI application from scratch, including adding JSpecify for null safety. Key Takeaways • Codex's thread-based workfl…