importer_skill

Overview

This skill provides programmatic control over Unity asset import settings for Textures, Audio, and Models. It supports single-asset operations and batch variants for applying the same configuration to multiple assets in one call. Use it to enforce consistent import policies, reduce repetitive work, and optimize runtime memory and performance.

How this skill works

The skill inspects and updates importer properties by asset path (e.g., Assets/Textures/icon.png). For textures it handles type, size, filtering, compression, mipmaps, sRGB, readability, wrap mode, and sprite pixels-per-unit. For audio it adjusts load type, compression format, mono conversion, background loading, and quality. For models it sets scale, mesh compression, read/write, UV generation, blend shapes, camera/light import, and animation options. Batch variants accept an items array to change 2+ assets with one call.

When to use it

• When standardizing import settings across a project
• When converting many UI images to Sprite type
• When optimizing audio assets for streaming or low-latency SFX
• When preparing models for runtime (scale, compression, animation settings)
• When you need to disable expensive read/write flags programmatically

Best practices

• Prefer batch APIs whenever configuring two or more assets to reduce calls and speed up processing
• For UI textures use Sprite type, disable mipmaps, and set readable=false unless GetPixel is required
• Use Streaming for long BGM and DecompressOnLoad for short SFX; Vorbis at 0.5–0.7 balances size and quality
• Apply Point filtering for pixel art and Bilinear/Trilinear for smooth textures
• For static models enable generateSecondaryUV for lightmapping and disable camera/light import for props

Example use cases

• Convert an entire UI folder to sprites with a single batch call and disable mipmaps
• Set all SFX to DecompressOnLoad and force mono where appropriate for low latency
• Batch-optimize environmental props: high mesh compression, no animations, generate lightmap UVs
• Configure character FBX to Humanoid with medium mesh compression and import blend shapes
• Query current import settings for an asset before modifying them to avoid regressions