Align managed raster RenderGraph authoring with URP

engine/include/XCEngine/Rendering/AGENTS.md

@@ -129,6 +129,14 @@ Guardrails:
 
 ## Past Execution
 
+- Removed fullscreen-kernel-specific authoring from the public managed
+  RenderGraph / URP pass surface. Public C# pass authors now use
+  `AddRasterPass(...)`, resource declarations, and `SetRenderFunc(...)`;
+  `ColorScaleFullscreen`, `ShaderVectorFullscreen`, and `FinalColorFullscreen`
+  execution setters are internal implementation hooks for URP's built-in
+  passes. Native now records generic managed raster passes as declared callback
+  graph work in any stage, while true deferred managed command-buffer execution
+  remains the next capability gap.
 - Made the public managed
   `ScriptableRenderPass.RecordRenderGraph(RenderGraph, ContextContainer)` path
   receive real URP frame data. `RenderingData`, `CameraData`, `LightingData`,