Antigravity has two conversation modes that affect how the agent approaches work. SuperAntigravity is built around these modes: certain skills and workflows are optimized for one mode or the other, and the agent will prompt you if your current mode doesn’t match the work phase.Documentation Index
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- Planning Mode
- Fast Mode
Planning Mode is for deep thinking, design, and complex problem-solving. Use it when you need the agent to reason carefully before acting.When to use it:
- Running
/brainstormto design a feature before writing code - Running
/planto produce a bite-sized implementation plan - Running
/researchor/troubleshootfor investigation - Any task involving architecture decisions, trade-off analysis, or requirements discovery
| Skill | Why Planning Mode |
|---|---|
brainstorming | Collaborative design before any code |
writing-plans | Structured plan creation |
systematic-debugging | Methodical investigation and isolation |
deep-research | Multi-source information gathering |
architecture-design | Option evaluation and trade-off analysis |
security-review | Careful review of auth and sensitive paths |
How the agent handles a mode mismatch
SuperAntigravity tracks which mode is appropriate for each phase of work. If you start a planning-phase skill while in Fast Mode — or an execution-phase skill while in Planning Mode — the agent will pause and prompt you:*“I am starting a [Planning/Execution] phase. Please switch to [Planning/Fast] mode in the conversation settings for optimal performance.”This is intentional. The prompt is not a suggestion — switching modes ensures the agent uses the right reasoning depth for the task.
How to switch modes
Mode is controlled in Antigravity’s conversation settings. Look for the mode toggle in the conversation header or settings panel and switch between Planning and Fast before starting a new phase of work.Quick reference
| Phase | Command | Mode |
|---|---|---|
| Requirements discovery | /brainstorm | Planning Mode |
| Write implementation plan | /plan | Planning Mode |
| Deep investigation | /research | Planning Mode |
| Architecture design | /design | Planning Mode |
| Systematic debugging | /troubleshoot | Planning Mode |
| Feature implementation | /implement | Fast Mode |
| Run tests | /test | Fast Mode |
| Build and package | /build | Fast Mode |
| Git operations | /git | Fast Mode |