Enhance CalendarTool: include additional event details in output

- Request additional fields for events, including attendees and attachments
- Extract and display event end time, location, attendees, attachments, and description in the event listing
- Truncate long descriptions for better readability

nanobot/agent/tools/calendar.py

@@ -714,6 +714,8 @@ class CalendarTool(Tool):
                     maxResults=max_results,
                     singleEvents=True,
                     orderBy="startTime",
+                    # Request additional fields to get attendees and attachments
+                    fields="items(id,summary,start,end,description,location,attendees(email,responseStatus),attachments(fileUrl,title))",
                 )
                 .execute()
             )
@@ -727,10 +729,17 @@ class CalendarTool(Tool):
             event_ids = []
             for idx, event in enumerate(events, 1):
                 start = event["start"].get("dateTime", event["start"].get("date"))
+                end = event["end"].get("dateTime", event["end"].get("date"))
                 title = event.get("summary", "No title")
                 event_id = event.get("id", "")
                 event_ids.append(event_id)
                 
+                # Extract additional information
+                description = event.get("description", "")
+                location = event.get("location", "")
+                attendees = event.get("attendees", [])
+                attachments = event.get("attachments", [])
+                
                 # Add position indicator - "last" means the one with the latest time (usually the last in list)
                 position_note = ""
                 if idx == len(events):
@@ -739,7 +748,31 @@ class CalendarTool(Tool):
                     position_note = " (FIRST - earliest time)"
                 
                 # Format: include numbered list with position indicators
-                result.append(f"{idx}. {title} ({start}) [ID: {event_id}]{position_note}")
+                result.append(f"{idx}. {title} ({start} - {end}) [ID: {event_id}]{position_note}")
+                
+                # Add location if present
+                if location:
+                    result.append(f"   Location: {location}")
+                
+                # Add attendees if present
+                if attendees:
+                    attendee_emails = [att.get("email", "") for att in attendees if att.get("email")]
+                    if attendee_emails:
+                        result.append(f"   Attendees: {', '.join(attendee_emails)}")
+                
+                # Add attachments if present
+                if attachments:
+                    attachment_info = []
+                    for att in attachments:
+                        file_name = att.get("fileUrl", "").split("/")[-1] if att.get("fileUrl") else att.get("title", "Unknown file")
+                        attachment_info.append(file_name)
+                    if attachment_info:
+                        result.append(f"   Attachments: {', '.join(attachment_info)}")
+                
+                # Add description if present (truncate if too long)
+                if description:
+                    desc_preview = description[:100] + "..." if len(description) > 100 else description
+                    result.append(f"   Description: {desc_preview}")
 
             # Also include a summary line with all IDs for easy extraction
             result.append(f"\nEvent IDs: {', '.join(event_ids)}")