Add attendee transformation workflows

MeetingAssistant.Tests/MeetingSummaryToolTests.cs

@@ -293,6 +293,44 @@ public sealed class MeetingSummaryToolTests
         Assert.Contains("transcript: \"[[../Transcripts/transcript|Transcript]]\"", meetingNote);
     }
 
+    [Fact]
+    public async Task ToolsTransformAddedAttendeeBeforeWritingMeetingNote()
+    {
+        var root = Path.Combine(Path.GetTempPath(), "meeting-assistant-tests", Guid.NewGuid().ToString("N"));
+        var artifacts = new MeetingSessionArtifacts(
+            MeetingNotePath: Path.Combine(root, "Meetings", "Notes", "meeting.md"),
+            TranscriptPath: Path.Combine(root, "Meetings", "Transcripts", "transcript.md"),
+            AssistantContextPath: Path.Combine(root, "Meetings", "Assistant Context", "context.md"),
+            SummaryPath: Path.Combine(root, "Meetings", "Summaries", "summary.md"));
+        Directory.CreateDirectory(Path.GetDirectoryName(artifacts.MeetingNotePath)!);
+        await File.WriteAllTextAsync(
+            artifacts.MeetingNotePath,
+            """
+            ---
+            title: Meeting
+            attendees: []
+            projects: []
+            transcript: "[[../Transcripts/transcript|Transcript]]"
+            assistant_context: "[[../Assistant Context/context|Assistant Context]]"
+            summary: "[[../Summaries/summary|Summary]]"
+            ---
+
+            User note line.
+            """);
+        var workflowEngine = new TransformingAttendeeWorkflowEngine("Ada Lovelace (Contoso)", "Ada Lovelace");
+        var tools = new MeetingSummaryTools(
+            artifacts,
+            new MeetingAssistantOptions(),
+            meetingWorkflowEngine: workflowEngine);
+
+        Assert.Equal("Added attendee Ada Lovelace.", await tools.AddAttendee("Ada Lovelace (Contoso)"));
+
+        var meetingNote = await File.ReadAllTextAsync(artifacts.MeetingNotePath);
+        Assert.Contains("- Ada Lovelace", meetingNote);
+        Assert.DoesNotContain("Ada Lovelace (Contoso)", meetingNote);
+        Assert.Equal(["Ada Lovelace (Contoso)"], workflowEngine.AttendeeRequests);
+    }
+
     [Fact]
     public async Task ToolsOverrideSpeakerInTranscriptAndRecordOverride()
     {
@@ -799,4 +837,5 @@ public sealed class MeetingSummaryToolTests
         Assert.False(tools.SummaryWasWritten);
         Assert.False(File.Exists(artifacts.SummaryPath));
     }
+
 }