I should add this is for Unity 6.6

Fixed with the following patch in AssetDependency attribute code:

Index: AssetDependencyAttribute.cs
===================================================================
--- AssetDependencyAttribute.cs (revision 18204)
+++ AssetDependencyAttribute.cs (working copy)
@@ -36,7 +36,7 @@
                 {
                     throw new InvalidOperationException
                     (
-                        $"[AssetDependency] '{callerFilePath}' - Auto mode can only be used for scripts located inside 'Assets/'. " +
+                        $"[AssetDependency] '{normalized}' - Auto mode can only be used for scripts located inside 'Assets/'. " +
                         "For Package assets, specify the full explicit path (e.g., [AssetDependency(\"Packages/...\")])."
                     );
                 }
@@ -43,7 +43,7 @@

                 string relativePath = normalized.Substring(assetsIdx);
                 string dirPath = System.IO.Path.GetDirectoryName(relativePath).Replace('\\', '/');
-                string className = System.IO.Path.GetFileNameWithoutExtension(callerFilePath);
+                string className = System.IO.Path.GetFileNameWithoutExtension(normalized);

                 if (className.EndsWith("Effect", StringComparison.OrdinalIgnoreCase))
                 {