feat: easier login

SKILL.md

@@ -31,16 +31,21 @@ Gmail, Outlook.com.
 
 #### `login`
 
-Authenticate to Exchange EWS via NTLM.
+Authenticate to Exchange EWS via NTLM. 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.
 
 | Parameter   | Type   | Required | Description                                      |
 | ----------- | ------ | -------- | ------------------------------------------------ |
-| `serverUrl` | string | yes      | EWS server URL (e.g. `https://mail.example.com`) |
-| `email`     | string | yes      | Email address                                    |
-| `username`  | string | yes      | NTLM username                                    |
+| `serverUrl` | string | no*      | EWS server URL (e.g. `https://mail.example.com`) |
+| `email`     | string | no*      | Email address                                    |
+| `username`  | string | no*      | NTLM username                                    |
 | `password`  | string | yes      | NTLM password                                    |
 | `domain`    | string | no       | NTLM domain (default: `corp`)                    |
 
+\* Required only on first login; skipped on subsequent logins (loaded from saved
+config).
+
 #### `check_session`
 
 Check if the current session is authenticated. No parameters. Returns

tools/auth.ts

@@ -8,6 +8,7 @@ import {
   saveConfig,
   setPassword,
 } from "../ews_client.ts";
+import type { LoginConfig } from "../types/login_config.ts";
 
 export function registerAuthTools(server: McpServer): void {
   server.registerTool(
@@ -15,24 +16,46 @@ export function registerAuthTools(server: McpServer): void {
     {
       description: "Authenticate to Exchange EWS using NTLM credentials",
       inputSchema: z.object({
-        serverUrl: z.string().describe(
+        serverUrl: z.string().optional().describe(
           "EWS server URL (e.g. https://mail.example.com)",
         ),
-        email: z.string().describe("Email address"),
-        username: z.string().describe("NTLM username"),
+        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 (default: corp)"),
       }),
     },
     async ({ serverUrl, email, username, password, domain }) => {
       try {
-        const config = {
-          serverUrl: serverUrl.replace(/\/+$/, ""),
-          email,
-          username,
-          domain: domain ?? "corp",
+        let savedConfig: Partial<LoginConfig> = {};
+        try {
+          savedConfig = loadConfig();
+        } catch {
+          // no saved config — all fields must be provided
+        }
+
+        const config: LoginConfig = {
+          serverUrl: (serverUrl ?? savedConfig.serverUrl)!,
+          email: (email ?? savedConfig.email)!,
+          username: (username ?? savedConfig.username)!,
+          domain: domain ?? savedConfig.domain ?? "corp",
         };
 
+        if (!config.serverUrl || !config.email || !config.username) {
+          return {
+            content: [{
+              type: "text" as const,
+              text: JSON.stringify({
+                success: false,
+                error:
+                  "Missing required fields. Provide serverUrl, email, and username, or login once with all fields first.",
+              }),
+            }],
+          };
+        }
+
+        config.serverUrl = config.serverUrl.replace(/\/+$/, "");
+
         const client = new EwsClient(config, password);
         const result = await client.verifyConnection();