Starting an Implementation Plan

Overview

Orchestrate the transition from design document to executable implementation through planning and execution handoff.

Core principle: Branch -> Plan -> Execute. Isolate work, create detailed tasks, hand off to execution.

Announce at start: "I'm using the starting-an-implementation-plan skill to create the implementation plan from your design."

REQUIRED: Design Plan Path

DO NOT GUESS. If the user has not provided a path to a design plan, you MUST ask for it.