If you've ever felt like your AI coding assistant is just guessing what you want to build, it's time to flip the script. Code has been king for decades, with specifications often discarded once the "real work" began. But what if your specifications became executable?

Enter the ultimate developer combo: GitHub Spec Kit combined with Google Antigravity, the next-generation agentic development platform.

By using the lightweight Antigravity CLI to run autonomous coding agents right from your terminal, you can guide your Python applications through a highly structured 6-step Spec-Driven Development (SDD) process.

Here is how you can build a Python application from scratch using this powerful stack:

1️⃣ Constitution: Setting the Rules The setup: You use the /speckit.constitution command. What happens: You establish your Python project's core principles and development guidelines. Google Antigravity's agent reads this to ensure all future code follows your specific standards.