Antigravity 2.0 Adds a /plan Mode for Agent Planning

Melvin Vivas · X video post · 2026-09-27 · Open on X

Topics: AI Dev Tools & Productivity, AI Agents, Tool Use & MCP · Level: beginner

Summary

Antigravity 2.0 now has a dedicated planning mode, like the one in the Antigravity CLI. When you type /plan, the agent researches the task and drafts an implementation plan, and asks for your approval before writing any code. The creator says plan mode is valuable but optional.

Key points

• Type /plan in Antigravity 2.0 to switch into planning mode.
• In this mode the agent steps back, thinks through the task and does extensive research before acting.
• It then produces an implementation plan for you to review and asks for your approval.
• The same feature already exists in the Antigravity CLI.
• Plan mode is optional, so you can skip it if you don't like it.

Resources mentioned

• Antigravity 2.0 · tool · antigravity.google · free
  Google's agentic coding environment, which now includes a dedicated planning mode.
• Antigravity CLI · tool · github.com · free
  Google's command-line coding agent that replaces Gemini CLI for individual users.
  Also in: Google Retires Gemini CLI, Launches Antigravity CLI (Melvin Vivas on X · notes), Gemini CLI sunset for individual tiers: migrate to Antigravity CLI (Melvin Vivas on X · notes)

Try this

• Try /plan in Antigravity on a non-trivial task and review the plan before approving it.