Comment by runekaagaard

15 hours ago

It's impossible to not get decision-fatique and just mash enter anyway after a couple of months with Claude not messing anything important up, so a sandboxed approach in YOLO mode feels much safer.

It takes the stress about needing to monitor all the agents all the time too, which is great and creates incentives to learn how to build longer tasks for CC with more feedback loops.

I'm on Ubuntu 22.04 and it was surprisingly pleasant to create a layered sandbox approach with bubblewrap and Landlock LSM: Landlock for filesystem restrictions (deny-first, only whitelisted paths accessible) and TCP port control (API, git, local dev servers), bubblewrap for mount namespace isolation (/tmp per-project, hiding secrets), and dnsmasq for DNS whitelisting (only essential domains resolve - everything else gets NXDOMAIN).

16 comments

runekaagaard

Reply
tptacek  15 hours ago

I've been working for the past several weeks in an environment where it's easy and safe to give different claudes yolo-mode, but yesterday I needed to build an Emacs TRAMP plugin, and I had to do that on my local development NUC. I am extremely spoiled for yolo-mode, because even just yes-ok'ing all the elisp fragments claude came up with was exasperating, the whole experience was draining, and that was me not being especially careful (just making sure it didn't run random bash commands to, like, install a different Emacs or something).

Nition  14 hours ago

I'm currently stuck on Windows, but I thought sandboxing was built in to Claude Code as a feature on Linux with the /sandbox command?

  • runekaagaard  3 hours ago

    /sandbox AFAIK uses https://github.com/anthropic-experimental/sandbox-runtime under the hood.

    It's still experimental and if you dive into the issues I would call its protection light. Many users experiences erratic issues with perms not being enforced, etc.

    For me the largest limitation was that it's read-mode is deny-only, meaning that with an empty deny-list it can read all files on your laptop.

    Restricting to specific domains have worked fine for me, but it can't block on specific ports, so you can't say for instance you may access these dev-server ports, but not dev-server ports belonging to another sandbox.

    It feels as though the primary usecase is running inside an already network and filesystem sandboxed container.

  • hu3  14 hours ago

    For Windows a quick win is to install VMware Workstation Pro (which is free) and install Ubuntu 24.04 LTS as a VM.

    Broadcom bought VMware then released Workstation Pro for free and I don't think they kept the download link but you can get from TechPowerUp:

    https://www.techpowerup.com/download/vmware-workstation-pro/

    You can then let LLMs on YOLO mode inside it.