Anthropic has removed the Ultraplan research preview. Research previews are experimental and may change or be removed based on feedback. The removal covers:
- The
/ultraplancommand - The
ultraplankeyword trigger - The No, refine with Ultraplan on Claude Code on the web option in the plan approval dialog
For planning workflows, use:
- Plan mode: in your local session, have Claude research your codebase and present a plan for your approval before it makes any changes
- Claude Code on the web: run Claude Code sessions in the cloud and review changes in your browser