diff --git a/artifacts/api-server/src/routes/executive-meetings.ts b/artifacts/api-server/src/routes/executive-meetings.ts
index 7b246d0d..4952eeca 100644
--- a/artifacts/api-server/src/routes/executive-meetings.ts
+++ b/artifacts/api-server/src/routes/executive-meetings.ts
@@ -228,66 +228,96 @@ const duplicateSchema = z.object({
   targetDate: dateSchema,
 });
 
-const isoDateOrDatetime = z.union([
-  z.string().regex(/^\d{4}-\d{2}-\d{2}$/),
-  z.string().datetime(),
-]);
-const trimmedString = (max: number) => z.string().trim().min(1).max(max);
+const dateOnly = z.string().regex(/^\d{4}-\d{2}-\d{2}$/);
+const timeHm = z.string().regex(/^\d{2}:\d{2}(:\d{2})?$/);
 
 const detailsByType = {
-  create: z.object({
-    titleAr: trimmedString(200).optional(),
-    titleEn: trimmedString(200).optional(),
-    meetingDate: isoDateOrDatetime.optional(),
-    notes: z.string().trim().max(2000).optional(),
-  }),
-  edit: z.object({
-    titleAr: z.string().trim().max(200).optional(),
-    titleEn: z.string().trim().max(200).optional(),
-    notes: z.string().trim().max(2000).optional(),
-  }),
-  delete: z.object({
-    reason: z.string().trim().max(2000).optional(),
-  }),
-  reschedule: z.object({
-    newDate: isoDateOrDatetime,
-    newTime: z.string().regex(/^\d{2}:\d{2}(:\d{2})?$/).optional(),
-    notes: z.string().trim().max(2000).optional(),
-  }),
-  add_attendee: z.object({
-    nameAr: trimmedString(200),
-    nameEn: z.string().trim().max(200).optional(),
-    role: z.string().trim().max(120).optional(),
-    notes: z.string().trim().max(2000).optional(),
-  }),
-  remove_attendee: z.object({
-    attendeeId: z.number().int().positive().optional(),
-    nameAr: z.string().trim().max(200).optional(),
-    notes: z.string().trim().max(2000).optional(),
-  }),
-  change_location: z.object({
-    location: trimmedString(200),
-    notes: z.string().trim().max(2000).optional(),
-  }),
-  cancel_meeting: z.object({
-    reason: z.string().trim().max(2000).optional(),
-  }),
-  note: z
+  create: z
     .object({
-      text: z.string().trim().max(2000).optional(),
-      note: z.string().trim().max(2000).optional(),
+      titleAr: z.string().trim().max(300).optional(),
+      titleEn: z.string().trim().max(300).optional(),
+      meetingDate: dateOnly.optional(),
+      startTime: timeHm.optional(),
+      endTime: timeHm.optional(),
+      location: z.string().trim().max(300).optional(),
+      notes: z.string().trim().max(5000).optional(),
+    })
+    .catchall(z.unknown()),
+  edit: z
+    .object({
+      titleAr: z.string().trim().max(300).optional(),
+      titleEn: z.string().trim().max(300).optional(),
+      notes: z.string().trim().max(5000).optional(),
+    })
+    .catchall(z.unknown()),
+  delete: z
+    .object({
+      reason: z.string().trim().max(5000).optional(),
+    })
+    .catchall(z.unknown()),
+  reschedule: z
+    .object({
+      meetingDate: dateOnly.optional(),
+      startTime: timeHm.optional(),
+      endTime: timeHm.optional(),
+      notes: z.string().trim().max(5000).optional(),
     })
     .catchall(z.unknown())
     .refine(
-      (v) => Boolean((v.text ?? v.note ?? "").trim()),
+      (v) => Boolean(v.meetingDate || v.startTime || v.endTime),
+      { message: "reschedule requires meetingDate, startTime, or endTime" },
+    ),
+  add_attendee: z
+    .object({
+      name: z.string().trim().min(1).max(200),
+      title: z.string().trim().max(200).optional(),
+      attendanceType: z.enum(ATTENDANCE_TYPES).optional(),
+      notes: z.string().trim().max(5000).optional(),
+    })
+    .catchall(z.unknown()),
+  remove_attendee: z
+    .object({
+      attendeeId: z.number().int().positive(),
+      notes: z.string().trim().max(5000).optional(),
+    })
+    .catchall(z.unknown()),
+  change_location: z
+    .object({
+      location: z.string().trim().max(300).optional(),
+      meetingUrl: z.string().trim().max(1000).optional(),
+      platform: z.enum(PLATFORMS).optional(),
+      notes: z.string().trim().max(5000).optional(),
+    })
+    .catchall(z.unknown())
+    .refine(
+      (v) => Boolean(v.location || v.meetingUrl || v.platform),
+      { message: "change_location requires location, meetingUrl, or platform" },
+    ),
+  cancel_meeting: z
+    .object({
+      reason: z.string().trim().max(5000).optional(),
+    })
+    .catchall(z.unknown()),
+  note: z
+    .object({
+      note: z.string().trim().max(5000).optional(),
+      text: z.string().trim().max(5000).optional(),
+    })
+    .catchall(z.unknown())
+    .refine(
+      (v) => Boolean((v.note ?? v.text ?? "").trim()),
       { message: "note text required" },
     ),
-  highlight: z.object({
-    notes: z.string().trim().max(2000).optional(),
-  }),
-  unhighlight: z.object({
-    notes: z.string().trim().max(2000).optional(),
-  }),
+  highlight: z
+    .object({
+      notes: z.string().trim().max(5000).optional(),
+    })
+    .catchall(z.unknown()),
+  unhighlight: z
+    .object({
+      notes: z.string().trim().max(5000).optional(),
+    })
+    .catchall(z.unknown()),
   other: z.object({}).catchall(z.unknown()),
 } as const;