You want a coding agent to work in its own machine: install packages, run servers, break things. Pieces. The coding-agent template ships seven agent CLIs (Claude Code, Codex, OpenCode, pi, Kimi Code, Mistral Vibe, Cursor Agent), Node, Python, Bun, Rust, Java, gh, Chrome, ripgrep and jq, with 2 vCPU, 4 GiB and 8 GiB of disk.
1

Create the sandbox with the agent's key

Pass the provider key as an environment variable at create time. The agents need their own credentials.
coding_box.sh
2

Work in it

Open a terminal with anona-compute ssh or watch and take over from the browser with live view.
3

Show what it built

When the agent starts a dev server on a port, share it with a preview link: anona-compute preview "$SANDBOX_ID" 3000. The link works for anyone who has it, until it expires (1 minute to 24 hours).
Driving it from your own agent. Register the MCP server so an outer agent can create these boxes and hand work to the one inside.