Still-image generation guide for SpriteCook. Use with spritecook-workflow-essentials when generating pixel art or detailed/HD assets, choosing models, and keeping style consistency with reference assets.
Use this skill for still-image generation. Pair it with spritecook-workflow-essentials for credits, manifests, safe downloads, and shared defaults.
Requires: SpriteCook MCP server connected to your editor. Set up with npx spritecook-mcp setup or see spritecook.ai.
generate_game_artGenerate game art assets from a text prompt. Supports both pixel art and detailed/HD styles. Waits up to 90s for the result and returns download URLs.
| Parameter | Type | Default | Description |
|---|---|---|---|
prompt | string (required) | - | What to generate. Be specific about subject, pose, and view angle |
width | int | 64 | Width in pixels (16-512) |
height | int | 64 | Height in pixels (16-512) |
variations | int | 1 | Number of variations (1-4) |
pixel | bool | true | True for pixel art, false for detailed/HD art |
bg_mode | string | "transparent" | "transparent", "white", or "include" |
theme | string | null | Art theme context, e.g. "dark fantasy medieval" |
style | string | null | Style direction, e.g. "16-bit SNES style" |
aspect_ratio | string | "1:1" | "1:1", "16:9", or "9:16" |
smart_crop | bool | true | Auto-crop to content bounds |
smart_crop_mode | string | "tightest" | Use "tightest" by default. Use "power_of_2" only when explicitly requested |
model | string | null | "gemini-2.5-flash-image" (cheapest), "gemini-3.1-flash-image-preview" (recommended default), or "gemini-3-pro-image-preview" (most expensive) |
mode | string | "assets" | "assets", "texture", or "ui" |
resolution | string | "1K" | "1K", "2K", or "4K" |
colors | string[] | null | Hex color palette, max 8 |
reference_asset_id | string | null | Asset ID from a previous generation to use as style reference |
edit_asset_id | string | null | Asset ID to edit/modify with the new prompt |
reference_asset_id and edit_asset_id are mutually exclusive. The referenced asset must belong to your account.
reference_asset_id for style consistency across a set.edit_asset_id only when modifying an existing SpriteCook asset.smart_crop_mode="tightest" unless the user explicitly asks for "power_of_2".Pixel art (pixel: true, default):
Detailed/HD art (pixel: false):
Choose based on the game's art direction. When the user does not specify, default to pixel art.