unity-performance

Installation
SKILL.md

Unity Performance Red Flags

Use this skill for a high-signal review of likely Unity performance issues. Focus on red flags, not speculative micro-optimizations.

Check For

  • Too many unrelated Update / LateUpdate / FixedUpdate loops
  • Repeated Find, GetComponent, Camera.main, or tag lookups in hot paths
  • Frequent Instantiate / Destroy suitable for pooling
  • Avoidable per-frame allocations:
    • LINQ
    • string formatting
    • closures
    • boxing
  • Reflection in runtime hot paths
  • Expensive editor-only helpers leaking into runtime code
  • Physics, animation, or UI updates happening at the wrong cadence

Hidden Costs: Possibility ≠ Actuality

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Mar 14, 2026