Initial commit: Microsoft To Do for Claude (skill + .mcpb extension)

Claude Code skill (CLI over Microsoft Graph, delegated auth-code + PKCE) and a
Claude Desktop .mcpb extension sharing one dependency-free core client.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

mcp-extension/manifest.json

@@ -0,0 +1,69 @@
+{
+  "manifest_version": "0.3",
+  "name": "ms-todo",
+  "display_name": "Microsoft To Do",
+  "version": "1.0.0",
+  "description": "Read and write your Microsoft To Do tasks, lists, and subtasks from Claude.",
+  "long_description": "Connects Claude to Microsoft To Do via the Microsoft Graph API. You sign in once as yourself (a browser window opens); the connection then reads and writes your task lists, tasks, and checklist items. Each user's sign-in is private to their own machine.",
+  "author": {
+    "name": "PESCO Inc."
+  },
+  "keywords": ["microsoft", "to do", "todo", "tasks", "graph", "productivity"],
+  "license": "MIT",
+  "compatibility": {
+    "platforms": ["darwin", "win32", "linux"],
+    "runtimes": {
+      "node": ">=18.0.0"
+    }
+  },
+  "server": {
+    "type": "node",
+    "entry_point": "server/index.mjs",
+    "mcp_config": {
+      "command": "node",
+      "args": ["${__dirname}/server/index.mjs"],
+      "env": {
+        "TODO_CLIENT_ID": "9af4a8a3-5290-4089-9058-a29dcce63c4f",
+        "TODO_TENANT_ID": "94c6c62d-8fe7-416f-8fef-7d8620b95819",
+        "TODO_TOKEN_CACHE": "${HOME}/.ms-todo/token-cache.json",
+        "TODO_TIMEZONE": "${user_config.timezone}",
+        "TODO_READONLY": "${user_config.read_only}"
+      }
+    }
+  },
+  "tools": [
+    { "name": "todo_login", "description": "Sign in (opens your browser)" },
+    { "name": "todo_logout", "description": "Forget the cached sign-in" },
+    { "name": "todo_test", "description": "Verify connectivity and show your lists" },
+    { "name": "todo_list_lists", "description": "List your task lists" },
+    { "name": "todo_list_tasks", "description": "Query tasks in a list" },
+    { "name": "todo_get_task", "description": "Get one task" },
+    { "name": "todo_create_task", "description": "Create a task" },
+    { "name": "todo_update_task", "description": "Update a task" },
+    { "name": "todo_complete_task", "description": "Mark a task complete" },
+    { "name": "todo_delete_task", "description": "Delete a task" },
+    { "name": "todo_create_list", "description": "Create a task list" },
+    { "name": "todo_update_list", "description": "Rename a task list" },
+    { "name": "todo_delete_list", "description": "Delete a task list" },
+    { "name": "todo_list_checklist", "description": "List checklist items (subtasks)" },
+    { "name": "todo_add_checklist_item", "description": "Add a checklist item" },
+    { "name": "todo_check_checklist_item", "description": "Check/uncheck a checklist item" },
+    { "name": "todo_delete_checklist_item", "description": "Delete a checklist item" }
+  ],
+  "user_config": {
+    "timezone": {
+      "type": "string",
+      "title": "Time zone",
+      "description": "Time zone for due/start/reminder dates (IANA like America/Denver, or a Windows zone name). Default UTC.",
+      "default": "UTC",
+      "required": false
+    },
+    "read_only": {
+      "type": "boolean",
+      "title": "Read-only mode",
+      "description": "If enabled, only viewing tools are available (no create/update/delete).",
+      "default": false,
+      "required": false
+    }
+  }
+}