pi-stef

Use when a plan folder created by sf-pair-plan must be executed milestone-by-milestone in a worktree, with a per-milestone TDD→review→commit→tracker loop, then finalized so the branch is preserved for a PR.

Use when a user asks to create a structured implementation plan with milestones, stories, and reviewer approval using pi-subagents.

Execute a single task end-to-end with plan review, implementation review, verification, and one persistent task-plan artifact.