unity-asset

> Before calling any skill in this module: if you are about to call a skill with parameters guessed from its name or description, STOP — read this file (or fetch its schema via GET /skills/recommend?includeSchema=true) first. If you already have the parameter definitions from recommend/schema, you may proceed straight to dryRun.

Triggers

• Organizing project assets
• Importing or relocating files
• Querying asset metadata
• Scripting AssetDatabase operations
• 整理工程资源、导入或移动文件、查询资源元数据、脚本化 AssetDatabase 操作

Unity Asset Skills

> BATCH-FIRST: Use *_batch skills when operating on 2+ assets.

Operating Mode

• Approval：本模块 Mixed —— asset_find / asset_get_info / asset_get_labels 标 SkillMode.SemiAuto，可直接执行；写类 skill (asset_move / asset_move_batch / asset_duplicate / asset_create_folder / asset_create_folder_batch / asset_refresh / asset_reimport* / asset_set_labels) 走默认 SkillMode.FullAuto，需 grant。
• Auto / Bypass：FullAuto 直接执行。
• 含 NeverInSemi 高危 skill：asset_import / asset_import_batch (标 RiskLevel = "high" —— 写入项目)；asset_delete / asset_delete_batch (Operation.Delete)。这些在 Approval/Auto 下返 MODE_FORBIDDEN，仅 Bypass 或 Allowlist 命中可调。

DO NOT (common hallucinations):

• asset_create does not exist → use asset_create_folder (folders), material_create (materials), script_create (scripts)
• asset_rename does not exist → use asset_move with new path
• asset_search does not exist → use asset_find with searchFilter syntax (e.g. t:Texture2D player)
• asset_copy does not exist → use asset_duplicate

Routing:

• For texture/model/audio import settings → use importer module (SkillMode.FullAuto)
• For material creation → use material module (SkillMode.FullAuto)
• For script creation → use script module

Skills Overview

| Single Object | Batch Version | Use Batch When |

|---------------|---------------|----------------|

| asset_import | asset_import_batch | Importing 2+ files |

| asset_delete | asset_delete_batch | Deleting 2+ assets |

| asset_move | asset_move_batch | Moving 2+ assets |

| asset_create_folder | asset_create_folder_batch | Creating 2+ folders |

No batch needed:

• asset_duplicate - Duplicate single asset
• asset_find - Search assets (returns list)
• asset_refresh - Refresh AssetDatabase
• asset_get_info - Get asset information
• asset_reimport - Force reimport asset
• asset_reimport_batch - Reimport multiple assets

---

Skills

asset_import

Import an external file into the project.

| Parameter | Type | Required | Description |

|-----------|------|----------|-------------|

| sourcePath | string | Yes | External file path |

| destinationPath | string | Yes | Project destination |

asset_import_batch

Import multiple external files.

| Parameter | Type | Required | Default | Description |

|-----------|------|----------|---------|-------------|

| items | json string | Yes | - | JSON array of per-item objects (see example below) |

items currently expects a JSON string, not a native array.

Returns: {success, totalItems, successCount, failCount, results: [{success, sourcePath, destinationPath}]}

import json

unity_skills.call_skill("asset_import_batch", items=json.dumps([
    {"sourcePath": "C:/Downloads/tex1.png", "destinationPath": "Assets/Textures/tex1.png"},
    {"sourcePath": "C:/Downloads/tex2.png", "destinationPath": "Assets/Textures/tex2.png"}
]))

asset_delete

Delete an asset from the project.

| Parameter | Type | Required | Description |

|-----------|------|----------|-------------|

| assetPath | string | Yes | Asset path to delete |

asset_delete_batch

Delete multiple assets.

| Parameter | Type | Required | Default | Description |

|-----------|------|----------|---------|-------------|

| items | json string | Yes | - | JSON array of per-item objects (see example below) |

items currently expects a JSON string, not a native array.

Returns: {success, totalItems, successCount, failCount, results: [{success, path}]}

import json

unity_skills.call_skill("asset_delete_batch", items=json.dumps([
    {"path": "Assets/Textures/old1.png"},
    {"path": "Assets/Textures/old2.png"}
]))

asset_move

Move or rename an asset.

| Parameter | Type | Required | Description |

|-----------|------|----------|-------------|

| sourcePath | string | Yes | Current asset path |

| destinationPath | string | Yes | New path/name |

asset_move_batch

Move multiple assets.

| Parameter | Type | Required | Default | Description |

|-----------|------|----------|---------|-------------|

| items | json string | Yes | - | JSON array of per-item objects (see example below) |

items currently expects a JSON string, not a native array.

Returns: {success, totalItems, successCount, failCount, results: [{success, sourcePath, destinationPath}]}

import json

unity_skills.call_skill("asset_move_batch", items=json.dumps([
    {"sourcePath": "Assets/Old/mat1.mat", "destinationPath": "Assets/New/mat1.mat"},
    {"sourcePath": "Assets/Old/mat2.mat", "destinationPath": "Assets/New/mat2.mat"}
]))

asset_duplicate

Duplicate an asset.

| Parameter | Type | Required | Description |

|-----------|------|----------|-------------|

| assetPath | string | Yes | Asset to duplicate |

asset_find

Find assets by search filter.

| Parameter | Type | Required | Default | Description |

|-----------|------|----------|---------|-------------|

| searchFilter | string | Yes | - | Search query |

| limit | int | No | 50 | Max results to return |

Search Filter Syntax:

| Filter | Example | Description |

|--------|---------|-------------|

| t:Type | t:Texture2D | By type |

| l:Label | l:Architecture | By label |

| name | player | By name |

| Combined | t:Material player | Multiple filters |

Returns: {count, totalFound, assets: [{path, name, type}]}

asset_create_folder

Create a folder in the project.

| Parameter | Type | Required | Description |

|-----------|------|----------|-------------|

| folderPath | string | Yes | Full folder path |

asset_create_folder_batch

Create multiple folders.

| Parameter | Type | Required | Default | Description |

|-----------|------|----------|---------|-------------|

| items | json string | Yes | - | JSON array of per-item objects (see example below) |

items currently expects a JSON string, not a native array. The parent folder of each entry must already exist, so order nested folders outermost-first within one call.

Returns: {success, totalItems, successCount, failCount, results: [{target, success, path, guid}]}

import json

unity_skills.call_skill("asset_create_folder_batch", items=json.dumps([
    {"folderPath": "Assets/Art"},
    {"folderPath": "Assets/Art/Textures"}
]))

asset_refresh

Refresh the AssetDatabase after external changes.

No parameters.

asset_get_info

Get information about an asset.

| Parameter | Type | Required | Description |

|-----------|------|----------|-------------|

| assetPath | string | Yes | Asset path |

asset_reimport

Force reimport of an asset.

| Parameter | Type | Required | Description |

|-----------|------|----------|-------------|

| assetPath | string | Yes | Asset path to reimport |

asset_reimport_batch

Reimport multiple assets matching a pattern.

| Parameter | Type | Required | Description |

|-----------|------|----------|-------------|

| searchFilter | string | No | AssetDatabase search filter (default *) |

| folder | string | No | Folder root to search (default Assets) |

| limit | int | No | Max assets to reimport (default 100) |

asset_set_labels

Set labels on an asset (overwrites existing labels).

| Parameter | Type | Required | Description |

|-----------|------|----------|-------------|

| assetPath | string | Yes | Asset path |

| labels | string | Yes | Comma-separated labels (e.g. "ui,icon,hud"). Empty entries are dropped |

Returns: {success, assetPath, labels: [...]}

asset_get_labels

Get the labels currently attached to an asset.

| Parameter | Type | Required | Description |

|-----------|------|----------|-------------|

| assetPath | string | Yes | Asset path |

Returns: {success, assetPath, labels: [...]}

---

Minimal Example

import unity_skills

# GOOD: 1 API call instead of 4
unity_skills.call_skill("asset_move_batch", items=[
    {"sourcePath": "Assets/tex1.png", "destinationPath": "Assets/Textures/tex1.png"},
    {"sourcePath": "Assets/tex2.png", "destinationPath": "Assets/Textures/tex2.png"},
    {"sourcePath": "Assets/tex3.png", "destinationPath": "Assets/Textures/tex3.png"},
    {"sourcePath": "Assets/tex4.png", "destinationPath": "Assets/Textures/tex4.png"}
])

Best Practices

1. Organize assets in logical folders
2. Use consistent naming conventions
3. Refresh after external file changes
4. Use search filters for efficiency
5. Backup before bulk delete operations

---

Exact Signatures

Exact names, parameters, defaults, and returns are defined by GET /skills/schema or unity_skills.get_skill_schema(), not by this file.

Common Errors

Full transport-level codes (COMPILING/RATE_LIMIT etc.) → ../../references/protocol-error-codes.md

| Error | Trigger | Fix |

|---|---|---|

| TARGET_NOT_FOUND | The source file, asset path, or target asset could not be found. | Verify the path with asset_find / asset_get_info, ensure the file exists, and retry with the exact project-relative path. |

| MISSING_PARAM | A required path parameter is empty or not provided (caught by path validation). | Provide the required assetPath, sourcePath, destinationPath, or folderPath. |

| SEMANTIC_INVALID | The path is invalid (e.g., contains .., does not start with Assets//Packages/, or the folder already exists). | Use a normalized project-relative path under Assets/ or Packages/; choose a different folder name if it already exists. |

| SKILL_ERROR | A low-level AssetDatabase or filesystem operation failed, such as Failed to delete asset, AssetDatabase.MoveAsset returned an error, or folder creation failed. | Resolve the issue described in the message (e.g., close locked files, fix parent path) and retry. |