Published skills
gat-milestone
Break the project into milestones and create production/milestone.md plus milestone directories.
game-architect
READ this skill when designing or planning any game system architecture — including combat, skills, AI, UI, multiplayer, narrative, or scene systems. Contains paradigm selection guides (DDD / Data-Driven / Prototype), system-specific design references, and mixing strategies. Works as a domain knowledge plugin alongside workflow skills (OpenSpec, SpecKit) or plan mode of an agent.
animation-shader
READ this skill when implementing or configuring animation-style shaders (Toon/Cel Shaders) — including outlines, rim lighting, toon shading, MatCap, emission, dissolve, hatching, or any stylized rendering effect. Contains preset styles and feature-to-reference mappings for lilToon, Poiyomi, UTS2, RToon, SToon, and ToonShadingCollection. Works as a domain knowledge plugin alongside workflow skills
gat-design
Run the full design pipeline with brainstorm wizard, or add one missing system.
gat-workflow-start
Inspect the repo state and recommend the next step in the simplified workflow.
gat-implement
Implement one ready task from a milestone tasks.md.
gat-plan
Create tasks.md, tech.md, and art-prompts.md for one milestone.
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