diff --git a/workspace-server/src/index.ts b/workspace-server/src/index.ts
index 674d678..6f4ca38 100644
--- a/workspace-server/src/index.ts
+++ b/workspace-server/src/index.ts
@@ -800,12 +800,119 @@ async function main() {
             'The ID of the calendar to delete the event from. Defaults to the primary calendar.',
           ),
       },
-    },
-    calendarService.deleteEvent,
-  );
-
-  server.registerTool(
-    'chat.listSpaces',
+     },
+     calendarService.deleteEvent,
+   );
+
+   server.registerTool(
+     'calendar.createCalendar',
+     {
+       description: 'Creates a new calendar.',
+       inputSchema: {
+         summary: z.string().describe('Calendar name/title.'),
+         description: z
+           .string()
+           .optional()
+           .describe('Optional calendar description.'),
+         timeZone: z
+           .string()
+           .optional()
+           .describe('Optional IANA timezone (e.g., America/New_York).'),
+       },
+     },
+     calendarService.createCalendar,
+   );
+
+   server.registerTool(
+     'calendar.createRecurringEvent',
+     {
+       description: 'Creates a recurring event in a calendar.',
+       inputSchema: {
+         calendarId: z
+           .string()
+           .optional()
+           .describe(
+             'The ID of the calendar to create the recurring event in. Defaults to primary.',
+           ),
+         summary: z.string().describe('The summary or title of the event.'),
+         description: z
+           .string()
+           .optional()
+           .describe('The description of the event.'),
+         start: z.object({
+           dateTime: z
+             .string()
+             .describe(
+               'The start time in strict ISO 8601 format with seconds and timezone.',
+             ),
+         }),
+         end: z.object({
+           dateTime: z
+             .string()
+             .describe(
+               'The end time in strict ISO 8601 format with seconds and timezone.',
+             ),
+         }),
+         attendees: z
+           .array(z.string())
+           .optional()
+           .describe('The email addresses of the attendees.'),
+         recurrence: z
+           .array(z.string())
+           .min(1)
+           .describe(
+             'Recurrence rules (e.g., ["RRULE:FREQ=WEEKLY;BYDAY=MO;COUNT=10"]).',
+           ),
+         reminders: z
+           .object({
+             useDefault: z.boolean().optional(),
+             overrides: z
+               .array(
+                 z.object({
+                   method: z.enum(['email', 'popup']),
+                   minutes: z.number().min(0),
+                 }),
+               )
+               .optional(),
+           })
+           .optional()
+           .describe('Optional reminder configuration for the recurring event.'),
+       },
+     },
+     calendarService.createRecurringEvent,
+   );
+
+   server.registerTool(
+     'calendar.setEventReminders',
+     {
+       description:
+         'Sets custom reminders for an existing calendar event (or resets to default reminders).',
+       inputSchema: {
+         eventId: z.string().describe('The ID of the event to update reminders for.'),
+         calendarId: z
+           .string()
+           .optional()
+           .describe('The ID of the calendar containing the event.'),
+         useDefault: z
+           .boolean()
+           .optional()
+           .describe('Whether to use default calendar reminders (default: true).'),
+         overrides: z
+           .array(
+             z.object({
+               method: z.enum(['email', 'popup']),
+               minutes: z.number().min(0),
+             }),
+           )
+           .optional()
+           .describe('Custom reminder overrides.'),
+       },
+     },
+     calendarService.setEventReminders,
+   );
+
+   server.registerTool(
+     'chat.listSpaces',
     {
       description: 'Lists the spaces the user is a member of.',
       inputSchema: {},
diff --git a/workspace-server/src/services/CalendarService.ts b/workspace-server/src/services/CalendarService.ts
index 980c725..b2062b9 100644
--- a/workspace-server/src/services/CalendarService.ts
+++ b/workspace-server/src/services/CalendarService.ts
@@ -58,6 +58,7 @@ export interface UpdateEventInput {
   start?: { dateTime: string };
   end?: { dateTime: string };
   attendees?: string[];
+  sendUpdates?: 'all' | 'externalOnly' | 'none';
   addGoogleMeet?: boolean;
   attachments?: EventAttachment[];
 }
@@ -77,6 +78,34 @@ export interface FindFreeTimeInput {
   duration: number;
 }
 
+export interface CreateRecurringEventInput {
+  calendarId?: string;
+  summary: string;
+  description?: string;
+  start: { dateTime: string };
+  end: { dateTime: string };
+  attendees?: string[];
+  recurrence: string[];
+  sendUpdates?: 'all' | 'externalOnly' | 'none';
+  reminders?: {
+    useDefault?: boolean;
+    overrides?: Array<{ method: 'email' | 'popup'; minutes: number }>;
+  };
+}
+
+export interface CreateCalendarInput {
+  summary: string;
+  description?: string;
+  timeZone?: string;
+}
+
+export interface SetEventRemindersInput {
+  eventId: string;
+  calendarId?: string;
+  useDefault?: boolean;
+  overrides?: Array<{ method: 'email' | 'popup'; minutes: number }>;
+}
+
 export class CalendarService {
   private primaryCalendarId: string | null = null;
 
@@ -113,9 +142,17 @@ export class CalendarService {
     }
   }
 
+  /**
+   * Standardized error message extraction helper.
+   * Converts any error to a string message safely.
+   */
+  private getErrorMessage(error: unknown): string {
+    return error instanceof Error ? error.message : String(error);
+  }
+
   private createValidationErrorResponse(error: unknown) {
     const errorMessage =
-      error instanceof Error ? error.message : 'Validation failed';
+      error instanceof Error ? this.getErrorMessage(error) : 'Validation failed';
     let helpMessage =
       'Please use strict ISO 8601 format with seconds and timezone. Examples: 2024-01-15T10:30:00Z (UTC) or 2024-01-15T10:30:00-05:00 (EST)';
 
@@ -191,8 +228,7 @@ export class CalendarService {
         ],
       };
     } catch (error) {
-      const errorMessage =
-        error instanceof Error ? error.message : String(error);
+      const errorMessage = this.getErrorMessage(error);
       logToFile(`Error during calendar.list: ${errorMessage}`);
       return {
         content: [
@@ -282,8 +318,7 @@ export class CalendarService {
         ],
       };
     } catch (error) {
-      const errorMessage =
-        error instanceof Error ? error.message : String(error);
+      const errorMessage = this.getErrorMessage(error);
       logToFile(`Error during calendar.createEvent: ${errorMessage}`);
       return {
         content: [
@@ -296,6 +331,73 @@ export class CalendarService {
     }
   };
 
+  createCalendar = async (input: CreateCalendarInput) => {
+    const { summary, description, timeZone } = input;
+    logToFile(`Creating calendar with summary: ${summary}`);
+    try {
+      const calendar = await this.getCalendar();
+      const res = await calendar.calendars.insert({
+        requestBody: { summary, description, timeZone },
+      });
+      return { content: [{ type: 'text' as const, text: JSON.stringify(res.data) }] };
+    } catch (error) {
+      const errorMessage = this.getErrorMessage(error);
+      logToFile(`Error during calendar.createCalendar: ${errorMessage}`);
+      return { content: [{ type: 'text' as const, text: JSON.stringify({ error: errorMessage }) }] };
+    }
+  };
+
+  createRecurringEvent = async (input: CreateRecurringEventInput) => {
+    const { calendarId, summary, description, start, end, attendees, recurrence, sendUpdates, reminders } = input;
+    try {
+      iso8601DateTimeSchema.parse(start.dateTime);
+      iso8601DateTimeSchema.parse(end.dateTime);
+      if (attendees) emailArraySchema.parse(attendees);
+      if (!recurrence || recurrence.length === 0) throw new Error('recurrence must contain at least one RRULE string');
+    } catch (error) {
+      return this.createValidationErrorResponse(error);
+    }
+    const finalCalendarId = calendarId || (await this.getPrimaryCalendarId());
+    logToFile(`Creating recurring event in calendar: ${finalCalendarId}`);
+
+    // Determine sendUpdates value
+    let finalSendUpdates = sendUpdates;
+    if (finalSendUpdates === undefined) {
+      finalSendUpdates = attendees?.length ? 'all' : 'none';
+    }
+    if (finalSendUpdates) {
+      logToFile(`Sending updates: ${finalSendUpdates}`);
+    }
+
+    try {
+      const event: calendar_v3.Schema$Event = { summary, description, start, end, attendees: attendees?.map((email) => ({ email })), recurrence };
+      if (reminders) event.reminders = { useDefault: reminders.useDefault, overrides: reminders.overrides };
+      const calendar = await this.getCalendar();
+      const res = await calendar.events.insert({ calendarId: finalCalendarId, requestBody: event, sendUpdates: finalSendUpdates });
+      logToFile(`Successfully created recurring event: ${res.data.id}`);
+      return { content: [{ type: 'text' as const, text: JSON.stringify(res.data) }] };
+    } catch (error) {
+      const errorMessage = this.getErrorMessage(error);
+      logToFile(`Error during calendar.createRecurringEvent: ${errorMessage}`);
+      return { content: [{ type: 'text' as const, text: JSON.stringify({ error: errorMessage }) }] };
+    }
+  };
+
+  setEventReminders = async (input: SetEventRemindersInput) => {
+    const { eventId, calendarId, useDefault = true, overrides } = input;
+    const finalCalendarId = calendarId || (await this.getPrimaryCalendarId());
+    logToFile(`Setting reminders for event ${eventId} in ${finalCalendarId}`);
+    try {
+      const calendar = await this.getCalendar();
+      const res = await calendar.events.patch({ calendarId: finalCalendarId, eventId, requestBody: { reminders: { useDefault, overrides } } });
+      return { content: [{ type: 'text' as const, text: JSON.stringify(res.data) }] };
+    } catch (error) {
+      const errorMessage = this.getErrorMessage(error);
+      logToFile(`Error during calendar.setEventReminders: ${errorMessage}`);
+      return { content: [{ type: 'text' as const, text: JSON.stringify({ error: errorMessage }) }] };
+    }
+  };
+
   listEvents = async (input: ListEventsInput) => {
     const {
       calendarId,
@@ -351,8 +453,7 @@ export class CalendarService {
         ],
       };
     } catch (error) {
-      const errorMessage =
-        error instanceof Error ? error.message : String(error);
+      const errorMessage = this.getErrorMessage(error);
       logToFile(`Error during calendar.listEvents: ${errorMessage}`);
       return {
         content: [
@@ -387,7 +488,7 @@ export class CalendarService {
     } catch (error) {
       const errorMessage =
         (error as any).response?.data?.error?.message ||
-        (error instanceof Error ? error.message : String(error));
+        this.getErrorMessage(error);
       logToFile(`Error during calendar.getEvent: ${errorMessage}`);
       return {
         content: [
@@ -426,7 +527,7 @@ export class CalendarService {
     } catch (error) {
       const errorMessage =
         (error as any).response?.data?.error?.message ||
-        (error instanceof Error ? error.message : String(error));
+        this.getErrorMessage(error);
       logToFile(`Error during calendar.deleteEvent: ${errorMessage}`);
       return {
         content: [
@@ -448,6 +549,7 @@ export class CalendarService {
       start,
       end,
       attendees,
+      sendUpdates,
       addGoogleMeet,
       attachments,
     } = input;
@@ -473,6 +575,15 @@ export class CalendarService {
     if (attachments?.length)
       logToFile(`Attachments: ${attachments.length} file(s)`);
 
+    // Determine sendUpdates value
+    let finalSendUpdates = sendUpdates;
+    if (finalSendUpdates === undefined) {
+      finalSendUpdates = attendees?.length ? 'all' : 'none';
+    }
+    if (finalSendUpdates) {
+      logToFile(`Sending updates: ${finalSendUpdates}`);
+    }
+
     try {
       const calendar = await this.getCalendar();
 
@@ -489,6 +600,7 @@ export class CalendarService {
         calendarId: finalCalendarId,
         eventId,
         requestBody,
+        sendUpdates: finalSendUpdates,
       };
       this.applyMeetAndAttachments(
         requestBody,
@@ -509,8 +621,7 @@ export class CalendarService {
         ],
       };
     } catch (error) {
-      const errorMessage =
-        error instanceof Error ? error.message : String(error);
+      const errorMessage = this.getErrorMessage(error);
       logToFile(`Error during calendar.updateEvent: ${errorMessage}`);
       return {
         content: [
@@ -611,8 +722,7 @@ export class CalendarService {
         ],
       };
     } catch (error) {
-      const errorMessage =
-        error instanceof Error ? error.message : String(error);
+      const errorMessage = this.getErrorMessage(error);
       logToFile(`Error during calendar.respondToEvent: ${errorMessage}`);
       return {
         content: [
@@ -803,8 +913,7 @@ export class CalendarService {
         ],
       };
     } catch (error) {
-      const errorMessage =
-        error instanceof Error ? error.message : String(error);
+      const errorMessage = this.getErrorMessage(error);
       logToFile(`Error during calendar.findFreeTime: ${errorMessage}`);
       return {
         content: [