What problem does it solve? Coordinating multiple concurrent milestones in a project becomes chaotic without a structured way to track which workstream is active, what phase each is in, and how much progress has been made. This Skill provides a single command surface to list, create, switch, monitor, complete, and resume parallel workstreams. ## Core Features & Use Cases - Workstream Lifecycle Management: Create, switch, complete, and resume named workstreams through the gsd-tools CLI. - Status & Progress Reporting: View per-workstream phase breakdowns and a cross-workstream progress summary in table format. - Use Case: You are running two milestones in parallel, such as a backend refactor and a frontend redesign. Use /gsd-workstreams create backend-refactor to set up an isolated workstream, /gsd-workstreams switch to move between them, and /gsd-workstreams progress to see overall status at a glance. ## Quick Start Ask the assistant to run /gsd-workstreams list to show all current workstreams with their status and progress.