---

name: unity-validation description: Validate project and scene health plus cleanup

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

• Checking broken or missing references
• Validating scene/project integrity
• Cleaning up before a build
• 检查断裂或丢失引用、校验场景/项目完整性、构建前清理

Unity Validation Skills

Maintain project health - find problems, clean up, and validate your Unity project.

Operating Mode

• Approval: 只读分析 skill（validate_scene / validate_find_missing_scripts / validate_find_unused_assets / validate_texture_sizes / validate_project_structure / validate_missing_references / validate_mesh_collider_convex / validate_shader_errors，标 SkillMode.SemiAuto）直接执行；含 Delete 的 skill（validate_cleanup_empty_folders 标 Analyze | Delete、validate_fix_missing_scripts 标 Execute | Delete，默认 SkillMode.FullAuto）需用户 grant。
• Auto / Bypass: 直接执行。
• 本模块含 Delete 类高危 skill：validate_cleanup_empty_folders / validate_fix_missing_scripts 一旦 dryRun=false 即真删；它们在 Approval / Auto 下被 IsForbiddenInSemi 自动拦截，仅 Bypass 或 Allowlist 命中可执行。强烈建议先用 dryRun=true 预览。

DO NOT (common hallucinations):

• Validation skill routes use the validate_* prefix, not validation_*
• validation_run / validation_check do not exist → use specific skills such as validate_scene, validate_project_structure, validate_missing_references
• validation_fix does not exist → validation skills report issues; use other modules to fix them
• validation_clean does not exist → use cleaner module for cleanup operations

Routing:

• For unused/duplicate asset cleanup → use cleaner module
• For missing script fix → cleaner_fix_missing_scripts (cleaner module)
• For compile errors → debug_check_compilation (debug module)

Skills Overview

Skill	Description
validate_scene	Comprehensive scene validation
validate_find_missing_scripts	Find objects with missing scripts
validate_fix_missing_scripts	Remove missing script components
validate_cleanup_empty_folders	Remove empty folders
validate_find_unused_assets	Find potentially unused assets
validate_texture_sizes	Check texture sizes
validate_project_structure	Get project overview
validate_missing_references	Find null/missing object references on components
validate_mesh_collider_convex	Find non-convex MeshColliders
validate_shader_errors	Find shaders with compilation errors

Six more skills carry SkillCategory.Validation but are implemented and documented in the batch module, so GET /skills/recommend?category=validation returns them alongside the ten above. Their parameters live in ../batch/SKILL.md; each is a preview that you commit with batch_execute(confirmToken), except batch_validate_scene_objects, which is a plain read-only report.

Skill	Description
batch_validate_scene_objects	Analyze scene objects for missing scripts, missing references, duplicate names, and empty objects
batch_fix_missing_scripts	Preview batch removal of missing scripts
batch_cleanup_temp_objects	Preview deleting temporary helper objects by common temp-name patterns
batch_standardize_naming	Preview standardizing names by trimming whitespace and normalizing separators
batch_set_render_layer	Preview setting GameObject layers in batch
batch_replace_material	Preview replacing materials in batch

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Skills

validate_scene

Comprehensive scene validation.

Parameter	Type	Required	Default	Description
checkMissingScripts	bool	No	true	Check for missing scripts
checkMissingPrefabs	bool	No	true	Check for missing prefabs
checkDuplicateNames	bool	No	true	Check duplicate names
checkEmptyGameObjects	bool	No	false	Check empty GameObjects (no components)

Returns: {scene, totalIssues, summary: {errors, warnings, info}, issues: [{type, severity, gameObject, path, message, count}]}

validate_find_missing_scripts

Find objects with missing script references.

Parameter	Type	Required	Default	Description
searchInPrefabs	bool	No	true	Also check prefab assets

Returns: {totalFound, objects: [{source, gameObject, path, missingCount, prefabPath?}]} (prefabPath only present when source="Prefab")

validate_fix_missing_scripts

Remove missing script components.

Parameter	Type	Required	Default	Description
dryRun	bool	No	true	Preview only, don't remove

Returns: {success, dryRun, fixedCount, message, objects: [{gameObject, path, missingCount}]}

validate_cleanup_empty_folders

Remove empty folders from project.

Parameter	Type	Required	Default	Description
rootPath	string	No	"Assets"	Starting folder
dryRun	bool	No	true	Preview only, don't delete

Returns: { success, dryRun, emptyFolderCount, folders, message }

validate_find_unused_assets

Find potentially unused assets.

Parameter	Type	Required	Default	Description
assetType	string	No	"Material"	Filter: Texture/Material/Prefab/etc
limit	int	No	100	Max results

Returns: { success, assetType, potentiallyUnusedCount, assets }

validate_texture_sizes

Check for oversized textures.

Parameter	Type	Required	Default	Description
maxRecommendedSize	int	No	2048	Warn if larger
limit	int	No	50	Max results

Returns: {maxRecommendedSize, largeTextureCount, textures: [{path, name, width, height, maxTextureSize, format, recommendation}]}

validate_project_structure

Get project folder structure overview.

Parameter	Type	Required	Default	Description
rootPath	string	No	"Assets"	Starting folder
maxDepth	int	No	2	Max folder depth

Returns: { success, rootPath, assetCounts, structure }

validate_missing_references

Find null/missing object references on components in the scene.

Parameter	Type	Required	Default	Description
limit	int	No	50	Max results

Returns: { success, count, issues: [{ gameObject, path, component, property }] }

validate_mesh_collider_convex

Find non-convex MeshColliders (potential performance issue).

Parameter	Type	Required	Default	Description
limit	int	No	50	Max results

Returns: { success, count, nonConvexColliders: [{ gameObject, path, vertexCount }] }

validate_shader_errors

Find shaders with compilation errors.

Parameter	Type	Required	Default	Description
limit	int	No	50	Max results

Returns: { success, count, shaders: [{ name, path, errorCount }] }

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Common Workflows

Pre-Build Check

import unity_skills

# Validate scene
scene_result = unity_skills.call_skill("validate_scene")
if scene_result['totalIssues'] > 0:
    print(f"Warning: {scene_result['totalIssues']} issues found")

# Check texture sizes
texture_result = unity_skills.call_skill("validate_texture_sizes", maxRecommendedSize=2048)
if texture_result['largeTextureCount'] > 0:
    print(f"Warning: {texture_result['largeTextureCount']} oversized textures")

Project Cleanup

import unity_skills

# 1. Preview missing scripts fix
preview = unity_skills.call_skill("validate_fix_missing_scripts", dryRun=True)
print(f"Would fix {preview['fixedCount']} objects")

# 2. Actually fix (if preview looks good)
unity_skills.call_skill("validate_fix_missing_scripts", dryRun=False)

# 3. Preview empty folder cleanup
preview = unity_skills.call_skill("validate_cleanup_empty_folders", dryRun=True)
print(f"Would delete {len(preview['folders'])} folders")

# 4. Actually cleanup
unity_skills.call_skill("validate_cleanup_empty_folders", dryRun=False)

# 5. Review unused assets (manual review recommended)
unused = unity_skills.call_skill("validate_find_unused_assets")
for asset in unused['assets']:
    print(f"Potentially unused: {asset}")

Best Practices

1. Always use dryRun=True first to preview changes
2. Run validation before major builds
3. Review unused assets manually before deletion
4. Keep texture sizes appropriate for target platform
5. Fix missing scripts before they cause runtime errors
6. Regular cleanup prevents project bloat

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Exact Signatures

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