refactor: drop skill file, rework client

tools/folders.ts

@@ -1,20 +1,31 @@
 import { type McpServer } from "@modelcontextprotocol/sdk/server/mcp.js";
 import { z } from "zod/v4";
-import { EwsClient, loadConfig } from "../ews_client.ts";
+import { loadConfig } from "../utils/login.ts";
+import { EwsClient } from "../client/ews_client.ts";
 
 export function registerFolderTools(server: McpServer): void {
   server.registerTool(
     "get_folders",
     {
-      description: "List mail folders from the Exchange mailbox",
+      description: "List mailbox folders from the Exchange mailbox.",
       inputSchema: z.object({
         parentFolderId: z.string().default("msgfolderroot").describe(
-          "Parent folder to list children of (default: msgfolderroot)",
+          "Parent folder to list children of."
+            + " Supports distinguished names (e.g. inbox, calendar)",
         ),
         recursive: z.boolean().default(false).describe(
-          "If True, traverse all subfolders recursively",
+          "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 {
@@ -23,6 +34,7 @@ export function registerFolderTools(server: McpServer): void {
 
         return {
           content: [{ type: "text" as const, text: JSON.stringify(folders) }],
+          structuredContent: { folders },
         };
       } catch (error: any) {
         return {