--- title: Container Use Extension description: Use Container-Use MCP as a goose Extension --- import Tabs from '@theme/Tabs'; import TabItem from '@theme/TabItem'; import GooseDesktopInstaller from '@site/src/components/GooseDesktopInstaller'; import CLIExtensionInstructions from '@site/src/components/CLIExtensionInstructions'; import YouTubeShortEmbed from '@site/src/components/YouTubeShortEmbed'; This tutorial covers how to add the [Container Use MCP Server](https://container-use.com) as a goose extension enabling goose to work in an isolated environment. :::tip Quick Install [Launch the installer](goose://extension?cmd=container-use&arg=stdio&id=container-use&name=container%20use&description=use%20containers%20with%20dagger%20and%20git%20for%20isolated%20environments) **Command** ```sh container-use stdio ``` ::: ## Configuration :::info You'll need [Docker](https://www.docker.com/) installed on your system. If you want to use the remote MCP server, you'll also need [Node.js](https://nodejs.org/) installed. ::: ## Example Usage Here's a simple example of updating a file-based to-do app to use a SQLite database plus full testing - all within an isolated container environment. :::info See [Isolated Development Environments](/docs/tutorials/isolated-development-environments) for more examples, common workflows, and troubleshooting tips. ::: #### Prompt ``` Run a container agent to add a feature to save my to-do list data in sqlite, build and run tests, but use a separate Git branch so my main code stays safe. ``` #### goose Output ``` I'll help you create a container environment to add SQLite functionality to your to-do list application on a separate Git branch. Let me start by creating the environment and examining your current code structure. ─── environment_create | containeruse ────────────────────────── environment_source: ./examples/todo-list explanation: ... title: ... Now let me set up the environment with the necessary tools and then proceed with the SQLite feature development: ─── environment_config | containeruse ────────────────────────── config: base_image: python:3.11-slim setup_commands: - [REDACTED: 63 chars] - pip install pytest pytest-cov environment_id: thankful-whale environment_source: ./examples/todo-list explanation: ... Let me install pytest after the environment is running: --- Great! I've created a container environment for safely adding SQLite functionality to your to-do list app. Let me first explore the current code structure and then create a new Git branch. --- Now I'll create the SQLite-based storage implementation. First, let me create a new version of the TaskManager with SQLite support: --- ## ✅ SQLite Feature Successfully Added! I've successfully created a container environment and added SQLite functionality to your to-do list application! Here's what was accomplished: ### 🎯 **Features Implemented** 1. **SQLite Database Storage** - Replaced plain text file storage with SQLite database - Created proper database schema with auto-incrementing IDs 2. **Enhanced Task Management** - All original functionality preserved (add, list, mark done/undone, delete, clear) - Added new **statistics feature** showing completion rates - Improved task display with database IDs 3. **Two Implementation Versions** - `taskman_sqlite.py` - Full-featured with Rich UI - `taskman_sqlite_simple.py` - Simplified without external dependencies ### 🧪 **Testing Completed** - ✅ Created comprehensive test suite (`test_taskman_sqlite.py`) - ✅ Built simple test runner (`test_simple.py`) - ✅ All tests pass successfully - ✅ Manual testing confirms functionality works perfectly ### 📊 **Live Demo Results** # Added tasks successfully ✓ Added task: Buy groceries ✓ Added task: Walk the dog # Listed tasks with SQLite IDs 📋 Task List (SQLite) # ID Status Task 1 1 ✓ Done Buy groceries 2 2 ○ Todo Walk the dog # Statistics working Task Statistics: Total tasks: 2 Completed: 1 Pending: 1 Completion rate: 50.0% # Database verified sqlite3 tasks.db "SELECT * FROM tasks;" 1|Buy groceries|1 2|Walk the dog|0 ### 🔒 **Safe Development** - ✅ Used separate container environment - ✅ All changes isolated from your main code - ✅ Original implementation preserved - ✅ Backward compatibility maintained ### 📁 **Files Created** - `taskman_sqlite_simple.py` - Main SQLite implementation - `test_simple.py` - Test suite - `SQLITE_FEATURE_README.md` - Comprehensive documentation - `tasks.db` - SQLite database file The SQLite implementation is fully functional and ready for use! The original file-based version remains untouched, so you can safely evaluate the new SQLite features without any risk to your existing code. ```