Unity Cleaner Skills

Safety: All delete operations default to dryRun=true. Set dryRun=false to actually delete.

Skills Overview

Skill	Description
cleaner_find_unused_assets	Find assets not referenced by others
cleaner_find_duplicates	Find duplicate files by content hash
cleaner_find_missing_references	Find missing scripts/asset references
cleaner_delete_assets	Delete assets (with dryRun protection)
cleaner_get_asset_usage	Find what references a specific asset

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Skills

cleaner_find_unused_assets

Find potentially unused assets of a specific type.

Parameter	Type	Required	Default	Description
assetType	string	No	"Material"	Asset type filter
searchPath	string	No	"Assets"	Search path
limit	int	No	100	Max results

Returns: {success, assetType, potentiallyUnusedCount, assets: [{path, name, type, sizeBytes}]}

# Find unused materials
result = call_skill("cleaner_find_unused_assets", assetType="Material")

# Find unused textures in a specific folder
result = call_skill("cleaner_find_unused_assets", 
    assetType="Texture2D", searchPath="Assets/Textures")

cleaner_find_duplicates

Find duplicate files by MD5 hash.

Parameter	Type	Required	Default	Description
assetType	string	No	"Texture2D"	Asset type
searchPath	string	No	"Assets"	Search path
limit	int	No	50	Max groups

Returns: {success, duplicateGroupCount, totalWastedBytes, totalWastedMB, groups: [{count, sizeBytes, wastedBytes, files}]}

# Find duplicate textures
result = call_skill("cleaner_find_duplicates", assetType="Texture2D")
print(f"Wasted space: {result['totalWastedMB']:.2f} MB")

cleaner_find_missing_references

Find components with missing scripts or null references.

Parameter	Type	Required	Default	Description
includeInactive	bool	No	true	Include inactive objects

Returns: {success, issueCount, missingScripts, missingReferences, issues: [{type, gameObject, path, ...}]}

# Scan for all missing references
result = call_skill("cleaner_find_missing_references")
print(f"Missing scripts: {result['missingScripts']}")
print(f"Missing references: {result['missingReferences']}")

cleaner_delete_assets

Delete specified assets with two-step confirmation.

⚠️ Safety First: Deletion requires TWO calls - first preview, then confirm.

Step 1 - Preview (no confirmToken):

Parameter	Type	Required	Description
paths	string[]	Yes	Asset paths to delete

Returns: {action: "preview", confirmToken, assetsToDelete, message}

Step 2 - Confirm (with confirmToken):

Parameter	Type	Required	Description
confirmToken	string	Yes	Token from preview step

Returns: {action: "deleted", deletedCount, results}

# Step 1: Preview what will be deleted
preview = call_skill("cleaner_delete_assets", 
    paths=["Assets/Unused/mat1.mat", "Assets/Unused/mat2.mat"])
print(preview['message'])  # Shows: "⚠️ PREVIEW ONLY - 2 assets will be deleted..."
print(preview['assetsToDelete'])  # Full list with sizes

# Step 2: Confirm deletion using token (expires in 5 minutes)
if input("Proceed? (y/n): ") == 'y':
    result = call_skill("cleaner_delete_assets", 
        confirmToken=preview['confirmToken'])
    print(result['message'])  # "Successfully deleted 2 assets"

cleaner_get_asset_usage

Find what objects reference a specific asset.

Parameter	Type	Required	Description
assetPath	string	Yes	Asset path
limit	int	No	Max results (default 50)

Returns: {success, asset, usedByCount, usedBy: [{path, name, type}]}

# Check what uses a texture
result = call_skill("cleaner_get_asset_usage", 
    assetPath="Assets/Textures/player.png")

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Example Workflow: Clean Project

import unity_skills

# 1. Find all missing references and fix them
missing = unity_skills.call_skill("cleaner_find_missing_references")
for issue in missing['issues']:
    if issue['type'] == 'MissingScript':
        print(f"⚠️ Missing script on: {issue['path']}")

# 2. Find duplicate textures
dupes = unity_skills.call_skill("cleaner_find_duplicates", assetType="Texture2D")
if dupes['totalWastedMB'] > 10:
    print(f"🗑️ {dupes['totalWastedMB']:.1f} MB wasted on duplicates")

# 3. Find unused materials
unused = unity_skills.call_skill("cleaner_find_unused_assets", assetType="Material")
print(f"📦 {unused['potentiallyUnusedCount']} potentially unused materials")

# 4. Preview cleanup
paths_to_delete = [a['path'] for a in unused['assets'][:5]]
preview = unity_skills.call_skill("cleaner_delete_assets", 
    paths=paths_to_delete, dryRun=True)
print(f"Would free: {preview['totalMB']:.2f} MB")