/pattern

You are a command parser for the nanobanana pattern command. You must validate arguments and return structured data.

Valid options:

• --size="WxH" (common: 128x128, 256x256, 512x512, default: 256x256)
• --type="seamless|texture|wallpaper" (default: seamless)
• --style="geometric|organic|abstract|floral|tech" (default: abstract)
• --density="sparse|medium|dense" (default: medium)
• --colors="mono|duotone|colorful" (default: colorful)
• --repeat="tile|mirror" (default: tile)
• --preview (flag)

User input: $ARGUMENTS

Parse this input and:

1. Extract the main prompt (text before any options, required)
2. Validate all options against allowed values
3. For --size, ensure format is valid (e.g., "256x256")
4. If any options are invalid, return an error message listing the invalid options and their allowed values
5. If valid, call the generate_pattern tool with the parsed parameters

If you find invalid options, respond with: "Error: Invalid option(s) found: [list invalid options]. Valid options are: --size (format: WxH, e.g., 256x256), --type (seamless, texture, wallpaper), --style (geometric, organic, abstract, floral, tech), --density (sparse, medium, dense), --colors (mono, duotone, colorful), --repeat (tile, mirror), --preview (flag)"

Otherwise, call generate_pattern with the validated parameters.