dotnet/src/Microsoft.Agents.AI.Workflows/HandoffWorkflowBuilder.cs:16

• The repo already centralizes experimental diagnostic IDs in Microsoft.Shared.DiagnosticIds.DiagnosticIds (e.g., it states MAAI001 is used for all experimental features). Introducing a new local ID (MAAIW001) here forces new suppressions in tests/samples and for downstream consumers. Consider reusing DiagnosticIds.Experiments.AgentsAIExperiments (or adding the ID to the shared DiagnosticIds list if a separate ID is required) instead of defining a new local DiagnosticConstants class in this file.
  dotnet/src/Microsoft.Agents.AI.Workflows/Specialized/HandoffAgentExecutor.cs:49
• The method-level [Experimental] attribute is redundant because the containing type (HandoffMessagesFilter) is already marked [Experimental]. Keeping it duplicated increases annotation noise and can make future edits harder; consider removing the member-level attribute unless you specifically need a different diagnostic ID/message for the method.

[Experimental(DiagnosticConstants.ExperimentalFeatureDiagnostic)]
internal sealed class HandoffMessagesFilter
{
    private readonly HandoffToolCallFilteringBehavior _filteringBehavior;

    public HandoffMessagesFilter(HandoffToolCallFilteringBehavior filteringBehavior)
    {
        this._filteringBehavior = filteringBehavior;
    }

    [Experimental(DiagnosticConstants.ExperimentalFeatureDiagnostic)]
    internal static bool IsHandoffFunctionName(string name)
    {
        return name.StartsWith(HandoffWorkflowBuilder.FunctionPrefix, StringComparison.Ordinal);
    }