Unity Script Validator

Validates Unity C# scripts against best practices and performance patterns specific to Unity game development.

What This Skill Checks

• Field declarations: [SerializeField] private instead of public fields
• Component caching: GetComponent in Awake/Start, not Update (~100x faster)
• String operations: StringBuilder for frequent concatenation
• GameObject.Find: Cache references, avoid in Update (O(n) operation)
• Code organization: #region directives, consistent ordering
• XML documentation: <summary> tags on public methods
• Update vs FixedUpdate: Appropriate usage for physics/non-physics
• Coroutines: Prefer for intermittent tasks over Update

Provides: Issues found, specific fixes, performance impact estimates, refactored code examples.

Compatibility

Applies to Unity 2019.4 LTS and later (including Unity 6).

See [patterns.md](patterns.md) and [examples.md](examples.md) for detailed optimization techniques.

When to Use vs Other Components

Use this Skill when: Quick validation of existing Unity scripts for best practices and common issues

Use @unity-scripter agent when: Writing new code or implementing Unity features from scratch

Use @unity-refactor agent when: Improving code quality, applying design patterns, or modernizing legacy code

Use @unity-performance agent when: Deep performance profiling, memory optimization, or platform-specific tuning

Use /unity:new-script command when: Creating new scripts from production-ready templates

Related Skills

• unity-scene-optimizer: For scene-level performance analysis
• unity-template-generator: For generating validated script templates