unreal-project-preflight

Version: 1.0.1 Last Updated: 2026-09-08 Dependencies: Unreal Engine 5.8 (launcher install), Python 3.10+, curl on PATH, UE 5.8 native MCP on the project's configured port for --live Status: Production-ready (probed against two real 5.8 projects on 2026-09-08)

Why this skill exists

Every Unreal build session that went wrong in the same way: the plan was approved, the agent started creating things, and the first real step failed because a plugin was off (ImagePlate, ProceduralVegetationEditor, MovieRenderPipeline), a project setting was not on (Nanite Foliage for MegaPlants, SM6 for Nanite), or the fix needed an editor restart that then lost unsaved component edits. The unreal-* skills document APIs, not the switches those APIs sit behind.