🚀 Add Todo Write Tool for Task Management and Progress Tracking (#478)

docs/tools/index.md

@@ -49,6 +49,7 @@ Qwen Code's built-in tools can be broadly categorized as follows:
 - **[Web Search Tool](./web-search.md) (`web_search`):** For searching the web.
 - **[Multi-File Read Tool](./multi-file.md) (`read_many_files`):** A specialized tool for reading content from multiple files or directories, often used by the `@` command.
 - **[Memory Tool](./memory.md) (`save_memory`):** For saving and recalling information across sessions.
+- **[Todo Write Tool](./todo-write.md) (`todo_write`):** For creating and managing structured task lists during coding sessions.
 
 Additionally, these tools incorporate:
 

docs/tools/todo-write.md

@@ -0,0 +1,63 @@
+# Todo Write Tool (`todo_write`)
+
+This document describes the `todo_write` tool for Qwen Code.
+
+## Description
+
+Use `todo_write` to create and manage a structured task list for your current coding session. This tool helps the AI assistant track progress and organize complex tasks, providing you with visibility into what work is being performed.
+
+### Arguments
+
+`todo_write` takes one argument:
+
+- `todos` (array, required): An array of todo items, where each item contains:
+  - `id` (string, required): A unique identifier for the todo item.
+  - `content` (string, required): The description of the task.
+  - `status` (string, required): The current status (`pending`, `in_progress`, or `completed`).
+
+## How to use `todo_write` with Qwen Code
+
+The AI assistant will automatically use this tool when working on complex, multi-step tasks. You don't need to explicitly request it, but you can ask the assistant to create a todo list if you want to see the planned approach for your request.
+
+The tool stores todo lists in your home directory (`~/.qwen/todos/`) with session-specific files, so each coding session maintains its own task list.
+
+## When the AI uses this tool
+
+The assistant uses `todo_write` for:
+
+- Complex tasks requiring multiple steps
+- Feature implementations with several components
+- Refactoring operations across multiple files
+- Any work involving 3 or more distinct actions
+
+The assistant will not use this tool for simple, single-step tasks or purely informational requests.
+
+### `todo_write` examples
+
+Creating a feature implementation plan:
+
+```
+todo_write(todos=[
+  {
+    "id": "create-model",
+    "content": "Create user preferences model",
+    "status": "pending"
+  },
+  {
+    "id": "add-endpoints",
+    "content": "Add API endpoints for preferences",
+    "status": "pending"
+  },
+  {
+    "id": "implement-ui",
+    "content": "Implement frontend components",
+    "status": "pending"
+  }
+])
+```
+
+## Important notes
+
+- **Automatic usage:** The AI assistant manages todo lists automatically during complex tasks.
+- **Progress visibility:** You'll see todo lists updated in real-time as work progresses.
+- **Session isolation:** Each coding session has its own todo list that doesn't interfere with others.