What
A new planning mode that delegates plan creation to a remote session for more thorough, multi-step planning before implementation begins.
Details
- When triggered, Claude enters "ultraplan" mode and generates a comprehensive plan via a dedicated remote session
- The completed plan is written to the plan file and presented to the user for approval
- Users then review the ultraplan and Claude responds with a summary before proceeding
- Gated as a
prePlanModeoption alongside the existing plan mode
Evidence
Ultraplan orchestration (search for "ultraplan", "Ultraplanning…", "Ultraplan complete")
Strings lifted out of the shipped bundle, so the claim above can be checked against them.