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> A simulated bash environment with an in-memory virtual filesystem, written in TypeScript.
> amla-sandbox is a WASM sandbox with capability enforcement. Agents can only call tools you explicitly provide, with constraints you define. Sandboxed virtual filesystem. No network. No shell escape.
Lets a coding agent run commands in a different VM
> Combining the three ideas, I now have a deno script, called box, that provides a multiplexed interface for running ad-hoc code on ad-hoc clusters.
> I am sorry but I've somehow been turned into a superfan of exe.dev, Shelley (their coding agent), and Claude Opus 4.5. I'm going to gush a bit. After ...
> [exe.dev co-founder here] If you are curious, we have a clone command coming soon for sub-section creation of a new VM out of an existing VM. This i...
> [...] Now I have a full-time driver. I’m in the back seat, giving directions when asked, or perhaps browsing the Internet if the driver doesn’t need any help. I do look in now and then to make sure we’re going in the right direction. [...]
> How we learned to stop worrying and love writeable root filesystems.
> My ad hoc shopping app is not exactly groundbreaking. What’s interesting is that I could summon exactly what I wanted into existence faster and with much less effort than finding a pre-built solution…or than doing my task without software, which is my usual go-to approach.