What problem does it solve? Writing a game design document (GDD) for a single system in isolation often leads to contradictions with other systems, missing sections, and lost progress when sessions are interrupted. This Skill structures the entire authoring process so each system GDD is consistent, complete, and incrementally saved. ## Core Features & Use Cases - Context-Aware Authoring: Reads the game concept, systems index, and dependency GDDs before asking any questions, so design decisions respect existing constraints. - Section-by-Section Workflow: Walks through eight required GDD sections (Overview, Player Fantasy, Detailed Design, Formulas, Edge Cases, Dependencies, Tuning Knobs, Acceptance Criteria) with a question-options-decision-draft-approval cycle for each. - Incremental File Writes with Recovery: Writes each approved section to design/gdd/[system-name].md immediately and tracks progress in session state, so interrupted sessions resume exactly where they stopped. - Use Case: After mapping your game's systems with an index, run this Skill to design the combat system — it reads related GDDs, proposes formula approaches, flags cross-system conflicts, and produces a complete reviewed GDD. ## Quick Start Ask the AI to design a game system GDD by providing the system name, for example: design the combat-system GDD.
