What problem does it solve? Game tiles often reveal visible seams, repeating motifs, and mismatched edges when tiled in-engine, breaking visual immersion. This Skill provides prompting and verification guidance for producing tile assets that repeat invisibly. ## Core Features & Use Cases - Seamless Single Tiles: Prompts for uniform stochastic textures and mandates a PIL-based 2x2 repeat composite check to catch seams, repeating motifs, and tone gradients. - Transition Tilesets: Guides creation of 3x3 grass-to-dirt style transition sets painted as one continuous image with correct per-cell directionality. - Rotation Economy: Reduces tile count by producing rotation-safe center, edge, and corner tiles plus center-fill variations when lighting is neutral. - Use Case: When asked to generate a terrain tileset for a top-down RPG, apply these rules to deliver a center fill, one straight edge, one outer corner, and fill variations that tile without visible grid lines. ## Quick Start Generate a seamless grass texture and a 3x3 grass-to-dirt transition tileset for my top-down game, verifying the tiles repeat cleanly.