The assistant plugin is broken again in the latest Unity alpha (6.6.0a7)
Please have someone check alpha releases before releasing an ai assistant update, as most of these errors will stay there either way.
Current error:
Library\PackageCache\com.unity.ai.assistant@d9bb465c57d1\Editor\Assistant\CodeAnalyze\DynamicAssemblyBuilder.cs(191,20): error UAC0020: System.Reflection.Assembly.Load(byte[]) loads assembly into non-Unity AssemblyLoadContext and is not supported. Use Unity API instead.