diff --git a/tools/auth.ts b/tools/auth.ts
index 922317a..3816082 100644
--- a/tools/auth.ts
+++ b/tools/auth.ts
@@ -17,15 +17,19 @@ export function registerAuthTools(server: McpServer): void {
       description: "Authenticate to Exchange EWS using NTLM credentials."
         + " On first use all fields except domain are required."
         + " On subsequent logins only password is needed — previously saved"
-        + " serverUrl, email, username, and domain are reused automatically from config."
-        + " Returns {success, message} on success or {success, error} on failure.",
+        + " serverUrl, email, username, and domain are reused automatically from config.",
       inputSchema: z.object({
-        serverUrl: z.string().optional().describe("Server URL"),
+        serverUrl: z.string().optional().describe("EWS server URL"),
         email: z.string().optional().describe("Email address"),
         username: z.string().optional().describe("NTLM username"),
         password: z.string().describe("NTLM password"),
         domain: z.string().optional().describe("NTLM domain"),
       }),
+      outputSchema: z.object({
+        success: z.boolean(),
+        message: z.string().optional(),
+        error: z.string().optional(),
+      }),
     },
     async ({ serverUrl, email, username, password, domain }) => {
       try {
@@ -103,8 +107,14 @@ export function registerAuthTools(server: McpServer): void {
     "check_session",
     {
       description:
-        "Check whether the current EWS session is authenticated. No parameters. Returns {authenticated, email, serverUrl} or {authenticated, error}.",
+        "Check whether the current EWS session is authenticated. No parameters.",
       inputSchema: z.object({}),
+      outputSchema: z.object({
+        authenticated: z.boolean(),
+        email: z.string().optional(),
+        serverUrl: z.string().optional(),
+        error: z.string().optional(),
+      }),
     },
     async () => {
       try {
@@ -117,6 +127,10 @@ export function registerAuthTools(server: McpServer): void {
                 error: "Not logged in. Password not found in memory.",
               }),
             }],
+            structuredContent: {
+              authenticated: false,
+              error: "Not logged in. Password not found in memory.",
+            },
           };
         }
         const config = loadConfig();
@@ -133,6 +147,12 @@ export function registerAuthTools(server: McpServer): void {
               error: result.error,
             }),
           }],
+          structuredContent: {
+            authenticated: result.ok,
+            email: config.email,
+            serverUrl: config.serverUrl,
+            error: result.error,
+          },
         };
       } catch (error: any) {
         return {
@@ -143,6 +163,10 @@ export function registerAuthTools(server: McpServer): void {
               error: error.message ?? String(error),
             }),
           }],
+          structuredContent: {
+            authenticated: false,
+            error: error.message ?? String(error),
+          },
         };
       }
     },
@@ -152,8 +176,12 @@ export function registerAuthTools(server: McpServer): void {
     "logout",
     {
       description:
-        "Clear stored credentials (serverUrl, email, username, domain, password). No parameters. Returns {success, message}.",
+        "Clear stored credentials (serverUrl, email, username, domain, password). No parameters.",
       inputSchema: z.object({}),
+      outputSchema: z.object({
+        success: z.boolean(),
+        message: z.string().optional(),
+      }),
     },
     async () => {
       clearConfig();
@@ -165,6 +193,10 @@ export function registerAuthTools(server: McpServer): void {
             message: "Logged out. Credentials cleared.",
           }),
         }],
+        structuredContent: {
+          success: true,
+          message: "Logged out. Credentials cleared.",
+        },
       };
     },
   );
diff --git a/tools/availability.ts b/tools/availability.ts
index 2b5909c..e8c1f56 100644
--- a/tools/availability.ts
+++ b/tools/availability.ts
@@ -8,22 +8,30 @@ export function registerAvailabilityTools(server: McpServer): void {
     {
       description: "Find free time slots in your own calendar."
         + " Queries your free/busy status and returns available slots"
-        + " within working hours that meet the minimum duration."
-        + " Returns {freeSlots: {date: [{start, end, durationMinutes}]}}."
-        + " Defaults: durationMinutes=30, startHour=9, endHour=18.",
+        + " within working hours that meet the minimum duration.",
       inputSchema: z.object({
         startDate: z.string().describe("Start date in YYYY-MM-DD format"),
         endDate: z.string().optional().describe(
-          "End date in YYYY-MM-DD format. Defaults to startDate",
+          "End date in YYYY-MM-DD format",
         ),
         durationMinutes: z.number().default(30).describe(
-          "Minimum slot duration in minutes. Default: 30",
+          "Minimum slot duration in minutes",
         ),
         startHour: z.number().default(9).describe(
-          "Working day start hour (0-23). Default: 9",
+          "Working day start hour (0-23)",
         ),
         endHour: z.number().default(18).describe(
-          "Working day end hour (0-23). Default: 18",
+          "Working day end hour (0-23)",
+        ),
+      }),
+      outputSchema: z.object({
+        freeSlots: z.record(
+          z.string(),
+          z.array(z.object({
+            start: z.string(),
+            end: z.string(),
+            durationMinutes: z.number(),
+          })),
         ),
       }),
     },
@@ -83,6 +91,7 @@ export function registerAvailabilityTools(server: McpServer): void {
             type: "text" as const,
             text: JSON.stringify({ freeSlots }),
           }],
+          structuredContent: { freeSlots },
         };
       } catch (error: any) {
         return {
@@ -98,24 +107,44 @@ export function registerAvailabilityTools(server: McpServer): void {
   server.registerTool(
     "find_meeting_time",
     {
-      description:
-        "Find common free time for multiple attendees. Queries free/busy for all attendees and returns slots where everyone is available. Returns {period, attendees, freeSlots}. Defaults: durationMinutes=30, startHour=9, endHour=18.",
+      description: "Find common free time for multiple attendees."
+        + " Queries free/busy for all attendees and returns slots where everyone is available.",
       inputSchema: z.object({
         emails: z.string().describe(
           "Comma-separated email addresses of attendees",
         ),
         startDate: z.string().describe("Start date in YYYY-MM-DD format"),
         endDate: z.string().optional().describe(
-          "End date in YYYY-MM-DD format. Defaults to startDate",
+          "End date in YYYY-MM-DD format",
         ),
         durationMinutes: z.number().default(30).describe(
-          "Minimum slot duration in minutes. Default: 30",
+          "Minimum slot duration in minutes",
         ),
         startHour: z.number().default(9).describe(
-          "Working day start hour (0-23). Default: 9",
+          "Working day start hour (0-23)",
         ),
         endHour: z.number().default(18).describe(
-          "Working day end hour (0-23). Default: 18",
+          "Working day end hour (0-23)",
+        ),
+      }),
+      outputSchema: z.object({
+        period: z.object({
+          start: z.string(),
+          end: z.string(),
+        }),
+        attendees: z.array(z.object({
+          email: z.string(),
+          busySlots: z.number().optional(),
+          freeSlots: z.number().optional(),
+          calendarEvents: z.number().optional(),
+        })),
+        freeSlots: z.record(
+          z.string(),
+          z.array(z.object({
+            start: z.string(),
+            end: z.string(),
+            durationMinutes: z.number(),
+          })),
         ),
       }),
     },
@@ -197,6 +226,11 @@ export function registerAvailabilityTools(server: McpServer): void {
               freeSlots: freeByDate,
             }),
           }],
+          structuredContent: {
+            period: { start: startDate, end: ed },
+            attendees: attendeeInfo,
+            freeSlots: freeByDate,
+          },
         };
       } catch (error: any) {
         return {
diff --git a/tools/calendar.ts b/tools/calendar.ts
index 2341d77..4850ec4 100644
--- a/tools/calendar.ts
+++ b/tools/calendar.ts
@@ -8,15 +8,35 @@ export function registerCalendarTools(server: McpServer): void {
   server.registerTool(
     "get_calendar_events",
     {
-      description:
-        "Get calendar events within a date range. Set includeBody=true to fetch organizer, attendees, and body via GetItem. Returns {events, count}.",
+      description: "Get calendar events within a date range."
+        + " Set includeBody=true to fetch organizer, attendees, and body via GetItem.",
       inputSchema: z.object({
         startDate: z.string().describe("Start date in YYYY-MM-DD format"),
         endDate: z.string().describe("End date in YYYY-MM-DD format"),
         includeBody: z.boolean().default(false).describe(
-          "If true, fetch full event details (organizer, attendees, body) via GetItem. Default: false",
+          "If true, fetch full event details (organizer, attendees, body) via GetItem",
         ),
       }),
+      outputSchema: z.object({
+        events: z.array(z.object({
+          subject: z.string(),
+          start: z.string(),
+          end: z.string(),
+          location: z.string(),
+          isAllDay: z.boolean(),
+          isCancelled: z.boolean(),
+          isMeeting: z.boolean(),
+          isRecurring: z.boolean(),
+          organizer: z.string(),
+          organizerEmail: z.string(),
+          myResponse: z.string(),
+          itemId: z.string(),
+          body: z.string(),
+          requiredAttendees: z.array(z.string()),
+          optionalAttendees: z.array(z.string()),
+        })),
+        count: z.number(),
+      }),
     },
     async ({ startDate, endDate, includeBody }) => {
       try {
@@ -69,6 +89,7 @@ export function registerCalendarTools(server: McpServer): void {
             type: "text" as const,
             text: JSON.stringify({ events, count: events.length }),
           }],
+          structuredContent: { events, count: events.length },
         };
       } catch (error: any) {
         return {
@@ -85,15 +106,31 @@ export function registerCalendarTools(server: McpServer): void {
     "download_event_attachments",
     {
       description:
-        "Download all file attachments from a calendar event to disk. Inline (embedded) attachments are skipped — only standalone file attachments are downloaded. Returns {success, downloaded, count} or {success, downloaded, count, errors}.",
+        "Download all file attachments from a calendar event to disk."
+        + " Inline (embedded) attachments are skipped — only standalone file attachments are downloaded.",
       inputSchema: z.object({
         itemId: z.string().describe(
           "The Exchange ItemId of the calendar event",
         ),
         targetFolder: z.string().default("/tmp/attachments").describe(
-          "Local directory to save files. Default: /tmp/attachments",
+          "Local directory to save files",
         ),
       }),
+      outputSchema: z.object({
+        success: z.boolean(),
+        downloaded: z.array(z.object({
+          name: z.string(),
+          path: z.string(),
+          size: z.number(),
+          contentType: z.string(),
+        })),
+        count: z.number(),
+        errors: z.array(z.object({
+          name: z.string(),
+          error: z.string(),
+        })).optional(),
+        message: z.string().optional(),
+      }),
     },
     async ({ itemId, targetFolder }) => {
       try {
@@ -117,6 +154,12 @@ export function registerCalendarTools(server: McpServer): void {
                 message: "No downloadable file attachments.",
               }),
             }],
+            structuredContent: {
+              success: true,
+              downloaded: [],
+              count: 0,
+              message: "No downloadable file attachments.",
+            },
           };
         }
 
@@ -174,6 +217,9 @@ export function registerCalendarTools(server: McpServer): void {
               ...(errors.length ? { errors } : {}),
             }),
           }],
+          structuredContent: errors.length === 0
+            ? { success: true, downloaded, count: downloaded.length }
+            : { success: false, downloaded, count: downloaded.length, errors },
         };
       } catch (error: any) {
         return {
diff --git a/tools/email.ts b/tools/email.ts
index d507c57..7dbce39 100644
--- a/tools/email.ts
+++ b/tools/email.ts
@@ -12,34 +12,40 @@ export function registerEmailTools(server: McpServer): void {
   server.registerTool(
     "get_emails",
     {
-      description:
-        "Get emails from a mailbox folder. Supports optional text search via query/queryScope. Returns {emails, count} or {itemIds, count} if idsOnly. Defaults: folder=Inbox, limit=10, offset=0, includeBody=false, unreadOnly=false, idsOnly=false, queryScope=all. Note: idsOnly raises the limit to 500.",
+      description: "Get emails from a mailbox folder."
+        + " Supports optional text search via query/queryScope.",
       inputSchema: z.object({
         folder: z.string().default("Inbox").describe(
           "Folder name (Inbox, Sent, Drafts, Deleted, Junk, or custom). Supports Russian folder names",
         ),
         limit: z.number().default(10).describe(
-          "Maximum number of emails to return. Default: 10. Max 50 (max 500 if idsOnly=true)",
+          "Maximum number of emails to return",
         ),
         offset: z.number().default(0).describe(
-          "Number of emails to skip for pagination. Default: 0",
+          "Number of emails to skip for pagination",
         ),
         includeBody: z.boolean().default(false).describe(
-          "If true, fetches full email body for each email (slower). Default: false",
+          "If true, fetches full email body for each email (slower)",
         ),
         unreadOnly: z.boolean().default(false).describe(
-          "If true, only return unread emails. Default: false",
-        ),
-        idsOnly: z.boolean().default(false).describe(
-          "If true, return only item IDs, dates, and subjects — faster with higher limit of 500. Default: false",
+          "If true, only return unread emails",
         ),
         query: z.string().optional().describe(
           "Optional text to search for within the folder",
         ),
         queryScope: z.enum(["all", "subject", "body", "from"]).default("all")
-          .describe(
-            "Scope for text search. Values: all (subject+body), subject, body, from. Only used when query is set. Default: all",
-          ),
+          .describe("Search scope: all, subject, body, or from"),
+      }),
+      outputSchema: z.object({
+        emails: z.array(z.object({
+          itemId: z.string(),
+          subject: z.string(),
+          from: z.string(),
+          date: z.string(),
+          isRead: z.boolean(),
+          hasAttachments: z.boolean(),
+        })),
+        count: z.number(),
       }),
     },
     async (
@@ -49,19 +55,18 @@ export function registerEmailTools(server: McpServer): void {
         offset,
         includeBody,
         unreadOnly,
-        idsOnly,
         query,
         queryScope,
       },
     ) => {
       try {
         const client = getClient();
-        const maxLimit = idsOnly ? 500 : 50;
+        const maxLimit = 50;
         if (limit > maxLimit) limit = maxLimit;
         offset = Math.max(0, offset);
 
         const folderId = await client.getFolderId(folder);
-        const baseShape = idsOnly ? "IdOnly" : "AllProperties";
+        const baseShape = "AllProperties";
 
         if (query && !query.trim()) query = undefined;
 
@@ -112,16 +117,16 @@ export function registerEmailTools(server: McpServer): void {
         let restriction = "";
         if (restrictions.length === 1) {
           restriction = `\
-      <m:Restriction>
-        ${restrictions[0]}
-      </m:Restriction>`;
+       <m:Restriction>
+         ${restrictions[0]}
+       </m:Restriction>`;
         } else if (restrictions.length > 1) {
           restriction = `\
-      <m:Restriction>
-        <t:And>
-          ${restrictions.join("\n")}
-        </t:And>
-      </m:Restriction>`;
+       <m:Restriction>
+         <t:And>
+           ${restrictions.join("\n")}
+         </t:And>
+       </m:Restriction>`;
         }
 
         const items = await client.findItems(folderId, {
@@ -131,20 +136,6 @@ export function registerEmailTools(server: McpServer): void {
           restriction,
         });
 
-        if (idsOnly) {
-          const result = items.map((item: any) => ({
-            itemId: item.ItemId?.["@_Id"] ?? "",
-            date: item.DateTimeReceived ?? "",
-            subject: item.Subject ?? "",
-          }));
-          return {
-            content: [{
-              type: "text" as const,
-              text: JSON.stringify({ itemIds: result, count: result.length }),
-            }],
-          };
-        }
-
         const emails = [];
         for (const item of items) {
           const email = client.extractEmailSummary(item);
@@ -165,6 +156,7 @@ export function registerEmailTools(server: McpServer): void {
             type: "text" as const,
             text: JSON.stringify({ emails, count: emails.length }),
           }],
+          structuredContent: { emails, count: emails.length },
         };
       } catch (error: any) {
         return {
@@ -181,12 +173,32 @@ export function registerEmailTools(server: McpServer): void {
     "get_email",
     {
       description:
-        "Get a single email with full body and details by Exchange ItemId. Returns the full Email object (subject, from, to, cc, body, date, attachments, etc.).",
+        "Get a single email with full body and details by Exchange ItemId.",
       inputSchema: z.object({
         itemId: z.string().describe(
           "The Exchange ItemId of the email to retrieve",
         ),
       }),
+      outputSchema: z.object({
+        itemId: z.string(),
+        subject: z.string(),
+        from: z.string(),
+        fromName: z.string().optional(),
+        to: z.array(z.string()).optional(),
+        cc: z.array(z.string()).optional(),
+        date: z.string(),
+        body: z.string().optional(),
+        isRead: z.boolean().optional(),
+        hasAttachments: z.boolean().optional(),
+        hasLinks: z.boolean().optional(),
+        attachments: z.array(z.object({
+          name: z.string(),
+          size: z.number(),
+          contentType: z.string(),
+          attachmentId: z.string().optional(),
+          isInline: z.boolean().optional(),
+        })).optional(),
+      }),
     },
     async ({ itemId }) => {
       try {
@@ -196,6 +208,7 @@ export function registerEmailTools(server: McpServer): void {
 
         return {
           content: [{ type: "text" as const, text: JSON.stringify(email) }],
+          structuredContent: { emails: [email] },
         };
       } catch (error: any) {
         return {
@@ -212,15 +225,20 @@ export function registerEmailTools(server: McpServer): void {
     "mark_email_read",
     {
       description:
-        "Mark one or more emails as read or unread by their Exchange ItemIds. Returns {success, message} or {error}.",
+        "Mark one or more emails as read or unread by their Exchange ItemIds.",
       inputSchema: z.object({
         itemIds: z.array(z.string()).describe(
           "List of Exchange ItemIds to update",
         ),
         isRead: z.boolean().default(true).describe(
-          "True to mark as read, false to mark as unread. Default: true",
+          "True to mark as read, false to mark as unread",
         ),
       }),
+      outputSchema: z.object({
+        success: z.boolean(),
+        message: z.string().optional(),
+        error: z.string().optional(),
+      }),
     },
     async ({ itemIds, isRead }) => {
       try {
@@ -239,6 +257,10 @@ export function registerEmailTools(server: McpServer): void {
               type: "text" as const,
               text: JSON.stringify({ error: errors.join("; ") }),
             }],
+            structuredContent: {
+              success: false,
+              error: errors.join("; "),
+            },
           };
         }
 
@@ -251,6 +273,10 @@ export function registerEmailTools(server: McpServer): void {
               message: `Marked ${itemIds.length} email(s) as ${status}.`,
             }),
           }],
+          structuredContent: {
+            success: true,
+            message: `Marked ${itemIds.length} email(s) as ${status}.`,
+          },
         };
       } catch (error: any) {
         return {
@@ -258,6 +284,10 @@ export function registerEmailTools(server: McpServer): void {
             type: "text" as const,
             text: JSON.stringify({ error: error.message ?? String(error) }),
           }],
+          structuredContent: {
+            success: false,
+            error: error.message ?? String(error),
+          },
         };
       }
     },
@@ -266,14 +296,29 @@ export function registerEmailTools(server: McpServer): void {
   server.registerTool(
     "download_attachments",
     {
-      description:
-        "Download all file attachments from an email to disk. Inline (embedded) attachments are skipped — only standalone file attachments are downloaded. Returns {success, downloaded, count} or {success, downloaded, count, errors}.",
+      description: "Download all file attachments from an email to disk."
+        + " Inline (embedded) attachments are skipped — only standalone file attachments are downloaded.",
       inputSchema: z.object({
         itemId: z.string().describe("The Exchange ItemId of the email"),
         targetFolder: z.string().default("/tmp/attachments").describe(
-          "Local directory to save files. Default: /tmp/attachments",
+          "Local directory to save files",
         ),
       }),
+      outputSchema: z.object({
+        success: z.boolean(),
+        downloaded: z.array(z.object({
+          name: z.string(),
+          path: z.string(),
+          size: z.number(),
+          contentType: z.string(),
+        })),
+        count: z.number(),
+        errors: z.array(z.object({
+          name: z.string(),
+          error: z.string(),
+        })).optional(),
+        message: z.string().optional(),
+      }),
     },
     async ({ itemId, targetFolder }) => {
       try {
@@ -297,6 +342,12 @@ export function registerEmailTools(server: McpServer): void {
                 message: "No downloadable file attachments.",
               }),
             }],
+            structuredContent: {
+              success: true,
+              downloaded: [],
+              count: 0,
+              message: "No downloadable file attachments.",
+            },
           };
         }
 
@@ -354,6 +405,9 @@ export function registerEmailTools(server: McpServer): void {
               ...(errors.length ? { errors } : {}),
             }),
           }],
+          structuredContent: errors.length === 0
+            ? { success: true, downloaded, count: downloaded.length }
+            : { success: false, downloaded, count: downloaded.length, errors },
         };
       } catch (error: any) {
         return {
diff --git a/tools/folders.ts b/tools/folders.ts
index a00789f..36974b5 100644
--- a/tools/folders.ts
+++ b/tools/folders.ts
@@ -6,16 +6,24 @@ export function registerFolderTools(server: McpServer): void {
   server.registerTool(
     "get_folders",
     {
-      description:
-        "List mailbox folders from the Exchange mailbox. Returns a list of Folder objects (name, id, totalCount, unreadCount, childFolderCount).",
+      description: "List mailbox folders from the Exchange mailbox.",
       inputSchema: z.object({
         parentFolderId: z.string().default("msgfolderroot").describe(
-          "Parent folder to list children of. Supports distinguished names (e.g. inbox, calendar). Default: msgfolderroot",
+          "Parent folder to list children of. Supports distinguished names (e.g. inbox, calendar)",
         ),
         recursive: z.boolean().default(false).describe(
-          "If true, recursively traverse all subfolders. Default: false",
+          "If true, recursively traverse all subfolders",
         ),
       }),
+      outputSchema: z.object({
+        folders: z.array(z.object({
+          name: z.string(),
+          id: z.string(),
+          totalCount: z.number(),
+          unreadCount: z.number(),
+          childFolderCount: z.number(),
+        })),
+      }),
     },
     async ({ parentFolderId, recursive }) => {
       try {
@@ -24,6 +32,7 @@ export function registerFolderTools(server: McpServer): void {
 
         return {
           content: [{ type: "text" as const, text: JSON.stringify(folders) }],
+          structuredContent: { folders },
         };
       } catch (error: any) {
         return {
diff --git a/tools/people.ts b/tools/people.ts
index 72f684e..b47ef7e 100644
--- a/tools/people.ts
+++ b/tools/people.ts
@@ -7,17 +7,37 @@ export function registerPeopleTools(server: McpServer): void {
     "find_person",
     {
       description:
-        "Search for people in the corporate directory (Active Directory) by name, email, or keyword. Returns a list of Person objects with name, email, jobTitle, department, company, office, phones, manager, directReports, and more.",
+        "Search for people in the corporate directory (Active Directory) by name, email, or keyword.",
       inputSchema: z.object({
         query: z.string().describe(
           "Name, email address, or keyword to search for",
         ),
       }),
+      outputSchema: z.object({
+        name: z.string(),
+        email: z.string(),
+        mailboxType: z.string(),
+        firstName: z.string(),
+        lastName: z.string(),
+        jobTitle: z.string(),
+        department: z.string(),
+        company: z.string(),
+        office: z.string(),
+        alias: z.string(),
+        manager: z.string(),
+        managerEmail: z.string(),
+        phones: z.record(z.string(), z.string()),
+        address: z.string(),
+        directReports: z.array(z.object({
+          name: z.string(),
+          email: z.string(),
+        })),
+      }),
     },
     async ({ query }) => {
       try {
         const client = new EwsClient(loadConfig());
-        const resolutions = await client.resolveNames(query, true);
+        const resolutions = await client.resolveNames(query);
 
         const people = resolutions.map((r: any) => {
           const mailbox = r.Mailbox ?? {};
@@ -85,6 +105,7 @@ export function registerPeopleTools(server: McpServer): void {
 
         return {
           content: [{ type: "text" as const, text: JSON.stringify(people) }],
+          structuredContent: { people },
         };
       } catch (error: any) {
         return {