About dagger/container-use
dagger/container-use is an MCP server published by dagger in the Developer Tools category: development environments for coding agents. Enable multiple agents to work safely and independently with your preferred stack.
The repository has 4.1K stars and 212 forks, with the last commit a month ago. Recent commit activity is the strongest signal that reported issues will get attention.
Install
git clone https://github.com/dagger/container-useThis server has no ConduID identity, so agent calls to it are not receipted. Pin the version you install and review the source before granting it credentials.
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Security checks
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- ✓README presentThe repository ships documentation.
- ✓License declaredUsable under a stated license.
- ✓Tests presentA test suite exists in the repository.
- ✓Dependencies pinnedA lockfile pins dependency versions.
- ✓No dynamic code executionSource scan found no eval, dynamic Function, or shell execution.
- !Scoped permissionsDoesn't declare a permission scope. Assume it can do anything its process can.
Releases
README
Container Use lets coding agents do their work in parallel environments without getting in your way. Go from babysitting one agent at a time to enabling multiple agents to work safely and independently with your preferred stack. See the full documentation.
It's an open-source MCP server that works as a CLI tool with Claude Code, Cursor, and other MCP-compatible agents. Powered by Dagger.
- 📦 Isolated Environments: Each agent gets a fresh container in its own git branch - run multiple agents without conflicts, experiment safely, discard failures instantly.
- 👀 Real-time Visibility: See complete command history and logs of what agents actually did, not just what they claim.
- 🚁 Direct Intervention: Drop into any agent's terminal to see their state and take control when they get stuck.
- 🎮 Environment Control: Standard git workflow - just
git checkout <branch_name>to review any agent's work. - 🌎 Universal Compatibility: Works with any agent, model, or infrastructure - no vendor lock-in.
🦺 This project is in early development and actively evolving. Submit issues and/or reach out to us on Discord in the #container-use channel.
Quick Start
Install
# macOS (recommended)
brew install dagger/tap/container-use
# All platforms
curl -fsSL https://raw.githubusercontent.com/dagger/container-use/main/install.sh | bash
Setup with Your Agent
Container Use works with any MCP-compatible agent. The setup is always the same: add container-use stdio as an MCP server.
👉 Complete setup guide for all agents (Cursor, Goose, VSCode, etc.)
Example with Claude Code:
# Add Container Use MCP server
cd /path/to/repository
claude mcp add container-use -- container-use stdio
# Add agent rules (optional)
curl https://raw.githubusercontent.com/dagger/container-use/main/rules/agent.md >> CLAUDE.md
The container-use command is also available as cu for convenience. Both commands work identically:
container-use stdio(used in documentation)cu stdio(shortcut)
Try It
Ask your agent to create something:
Create a hello world app in python using flask
Your agent will work in an isolated environment and give you URLs to view the app and explore the code!
README fetched from the repository 4 days ago. The original is authoritative.