Day 4 — Antigravity: CLI, SDK & Agents

Antigravity is not just an IDE. It's a platform with three surfaces: the IDE (Days 1-3), the CLI (a lightweight terminal agent), and the SDK (Python scripts for building custom agents). Today covers the CLI and SDK, plus the multi-agent orchestration features that make Antigravity more than the sum of its parts.

Lessons

1. Antigravity CLI — the terminal-first surface, how it differs from Gemini CLI, and the migration path
2. Parallel Agents — running multiple agents simultaneously, coordinating work, and the agent manager
3. Antigravity SDK — building custom agents with Python, the agent harness, and evaluation
4. Scheduled Messages & Automation — automating routine tasks with scheduled agent runs
5. Multi-Workspace Projects — operating across multiple workspaces from a single Project

Next: Day 5 — Skills, Extensions & Production