Is there a list of these "code sandboxes" floating around somewhere? It seems like it's going to be more and more important with LLMs playing more of a factor in development moving forward.
I know of https://modal.com/, which I believe is used by Codegen and Cognition.
Anecdotally-speaking, I hear that many companies in the LLM agent space roll their own sandbox solutions - I've heard of both Firecracker- and Kubernetes-based implementations.
Yeah for sure: run it inside a virtual machine, or do some sort of docker magic.
You kind of need to pretend you are a whole computer for a programming language to be happy. There's built in assumptions they're running on a "real" computer. They assume they've got full access to network and disk. Installing packages often requires compiling C extensions, or running native binaries. All that stuff means the best way to sandbox is to virtualise a whole computer.
It's fun to do it with WebAssembly though, you get a lot of guarantees and it's quite light weight.
all of the servers deployed to mcp.run[0] are Wasm modules, and can run client side. they run in our cloud too, but you could use mcpx to pull them locally instead.
you can also get the raw wasm via our API and run them anywhere you can run Extism[1], the open source wasm runtime & framework that underpins it all. (Including this hyper-mcp project!)
