urp-keyword-audit

name	urp-keyword-audit
description	Audit shader keywords and variant usage for the URP FX shader system. Use when reviewing shader_feature vs multi_compile choices, keyword consistency, stripping issues, or suspected variant explosion.

URP Keyword Audit

Focus on GitRepo/NB_FX.

Audit workflow:

1. Find all relevant keyword declarations in shaders and includes.
2. Find all runtime and editor-side code that reads, sets, or synchronizes those keywords.
3. Group keywords by purpose:
   • feature toggles
   • lighting or pass behavior
   • debug or editor-only state
4. Identify problems:
   • unnecessary multi_compile
   • duplicate or overlapping keywords
   • keywords enabled without matching property or UI state
   • stripping gaps
   • combinations that inflate variants without shipping value
5. Recommend the smallest safe correction.

When reporting, include:

• where the keyword is declared
• where it is controlled
• whether it should remain shader_feature or multi_compile
• possible compatibility or content-authoring risks if changed

Do not add new keywords unless there is a strong reason and the variant cost is justified.

Load additional context from:

• D:\UnityProject\NiuBiDev\.codex\rules.md
• D:\UnityProject\NiuBiDev\.codex\project.md