What problem does it solve? In a Specification-Driven Development workflow, multiple artifacts (PRDs, architecture docs, UX specs, change proposals) are produced by different skills, and teams lose track of what exists, when it changed, and what stage each change is in. This Skill maintains a single YAML tracker file as the source of truth for all SDD artifact status and history. ## Core Features & Use Cases - Tracker Initialization: Creates sdd-tracker.yml from a template with project name and creation dates when the file is missing. - Shared Artifact Tracking: Updates created/lastUpdate timestamps and changelog entries for shared artifacts like PRD, architecture, and UX documents. - Change Lifecycle Management: Records change entries and transitions their status through ready-for-dev, in-progress, done, verified, and archived states. - Use Case: When sdd-implement finishes all tasks for a change, this Skill automatically updates the change status to done, stamps lastUpdate, and appends an "Implementation complete" changelog note. ## Quick Start This internal skill is invoked automatically by other SDD workflow skills such as sdd-prd, sdd-propose, and sdd-implement whenever they produce or modify an SDD artifact.
