Claude Code Ultraplan: Cloud-Based AI Planning in 2026 — A Hands-On Tutorial TL;DR Summary Ultraplan offloads Claude Code's planning phase to a cloud session , keeping your terminal free while a structured plan is drafted remotely You review plans in your browser with inline comments, emoji reactions, and section-level navigation — a richer surface than terminal text Three ways to launch: the /ultraplan command, the ultraplan keyword in any prompt, or from a local plan's approval dialog You choose where to execute: in the cloud (with PR creation) or teleport back to your terminal (with full local environment access) Requires Claude Code v2.1.91+, a GitHub repo, and a Claude.ai account. Not available on Bedrock, Vertex, or Foundry Direct Answer Block Ultraplan is Anthropic's research preview feature that separates AI planning from execution by drafting structured plans in a cloud-based Claude Code session.…