container-use

Afaik, code running inside https://github.com/dagger/container-use can still access files outside the current directory.

Dagger also made something: https://github.com/dagger/container-use

For sandboxing and parallelizing agents people at my day job recently started using container-use[0] and seem to be quite happy with it. I have yet to try it in depth but the approach it takes seems quite sensible to me: Have the agent execute all commands within a container via an MCP[1], propagate any changes the agent makes to git branches on the host, for easy review & merge. [0]: https://github.com/dagger/container-use [1]: I would like it better if the entire agent process were sandboxed but I suppose that would make it difficult to use with IDE/GUI-based agents.

check out https://github.com/dagger/container-use! it uses worktrees under the hood, but hides them from the user and agent. it basically gives you containers tracked by git branches and plugs into any MCP-compatible agent. you're then free to make your own worktrees from those branches, but you can also just use them in your normal checkout.

There's also container-use by dagger (docker creators): https://github.com/dagger/container-use

Did you link to a video instead of https://github.com/dagger/container-use (Apache 2)? I mean, as fun as it was to watch someone type into GhosTTY on stage ... Anyway, lightly discussed at the time https://news.ycombinator.com/item?id=44193933

Plus it’s straightforward to make Claude Code run agents in parallel/background just like Codex and Cursor, in local sandboxes: https://github.com/dagger/container-use

Got this working in a preliminary way with local containerized environments for Copilot agent via https://github.com/dagger/container-use/pull/91. Going to fix it up, but could use some Windows wizards' support.

In at least the case for coding agents the emerging pattern is to have the agents use containers for isolating work and git for reviewing and merging that work neatly. See for example the container use MCP which combines both: https://github.com/dagger/container-use That’s for parallelizing coding work… I’m not sure about other kinds of work. I still see people using workflow builder tools like n8n, Zapier, and maybe CrewAI.

https://github.com/dagger/container-use (cu) is improving daily. Happy to help get it working if you're hitting anything (we're all in dagger.io discord). Last night I tried it with Amazon Q Developer CLI chat (with claude-3.7-sonnet), which I hadn't touched before (will PR how-to to the README today). MCP integration just worked for me. Figured out where to put the agent rules for Q and how to restrict to just the tools from cu. I kicked off three instances of Q to modify my flask app project with the same prompt in parallel (don't step on the local source) and got three variants to review in short order. I merged the one I liked into the repo and tossed the rest.

Nice to see container use mentioned (https://github.com/dagger/container-use). I work with the team that made it (a lot of ex-Docker folks including the creator of Docker.) Running agents in parallel will be a big deal as soon as we learn (or the agents learn) how to reliably work with just one. Even before then, if you're trying to get work done while the agent is doing its own thing or you find yourself watching over the agent's "shoulder" out of fear it'll change something you didn't ask it to change, then it's useful to run it in a containerized dev environment. Container use is definitely early but moving quickly, and probably improved even since this post was published. We're currently focused on stability, reducing git confusion, better human<>agent interaction, and environment control.

> Overall, we are convinced that containers can be useful and warranted for programming. Last week Solomon Hykes (creator of Docker) open-sourced[1] Container Use[2] exactly for this reason, to let agents run in parallel safely. Sharing it here because while Sketch seems to have isolated + local dev environments built in (cool!), no other coding agent does (afaik). [1] https://www.youtube.com/live/U-fMsbY-kHY?si=AAswZKdyatM9QKCb... - fun to watch regardless [2] https://github.com/dagger/container-use