Aseprite MCP Tools

Instructions

Implementation Reference

• aseprite_mcp/tools/palette.py:136-156 (handler)

  The handler function 'apply_preset_palette' which validates the preset name and calls 'create_palette' to update the Aseprite file.

  async def apply_preset_palette(
      filename: str,
      preset: str
  ) -> str:
      """Apply a predefined palette to an Aseprite file.
  
      Args:
          filename: Name of the Aseprite file to modify
          preset: Preset palette name. Options: gameboy, gameboy-pocket, nes, pico-8, cga, monochrome, sepia
      """
      try:
          preset_lower = preset.lower()
          if preset_lower not in PRESET_PALETTES:
              available = ", ".join(sorted(PRESET_PALETTES.keys()))
              raise ValidationError("preset", preset, f"Unknown preset. Available: {available}")
          
          colors = PRESET_PALETTES[preset_lower]
          return await create_palette(filename, colors, palette_name=preset)
          
      except Exception as e:
          return f"Failed to apply preset palette: {e}"