Add Sandboxes documentation page - #24
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Documents the DeepSands sandbox service ahead of release: plans/pricing, lifecycle and timeouts, filesystem persistence (only /workspace survives stop/start), isolation/networking, quotas, errors, Python SDK, and HTTP API. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Exact specs and hourly rates can change; link to the dashboard and catalog endpoint/SDK method instead of a table that will go stale. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
The backend branch merged main since the page was first written, and fixed the fs-path-outside-/workspace bug from a 500 to a proper 400 -- update the docs to match instead of describing a bug that's gone. Also: drop the unreachable 403 row from the errors table, add the 400 row that's now common (bad path, empty command, timeout out of range), note the read-side 100 MiB cap symmetric to writes, and mention the fail_reason field GET/list now returns for a failed sandbox. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
ats3v
reviewed
Aug 19, 2026
| A sandbox is subject to three independent clocks: | ||
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| - **Idle timeout** — configurable per sandbox with `timeout` at creation (an hour, by default, if you don't pass one, and there's currently no way to disable it). Idle time is measured from when your **last call finished**, not when it started, so a single command that runs longer than the idle timeout can have its sandbox stopped out from under it mid-execution. If a job might take a while, set `timeout` generously (up to the 30-minute per-command cap) rather than relying on the default. | ||
| - **24-hour hard age limit** — a sandbox auto-stops 24 hours after **creation**, and that clock is never reset by `stop()`/`start()`. Create a sandbox, stop it after ten minutes, come back the next day, and it can auto-stop again shortly after you restart it — simply because it's more than a day old by wall-clock time. If you need something to outlive a day of calendar time, `terminate()` and recreate it rather than stop/start-ing the same one indefinitely. |
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To be honest, this flow doesn't seem right to me. Let's refactor the logic to: a sb can be in running state max 24h at a time, then it becomes stopped. Also, a stopped sb is deleted after 7 days of inactivity. In theory someone might start and stop his sb forever, but that's not a problem for us and he will be paying for the time it's running.
…examples - backend#4450 (merged) changes the 24h sandbox lifetime cap to measure continuous running time instead of wall-clock age since creation, so stop()/start() now resets it -- update both mentions and drop the now-misleading terminate()-and-recreate guidance. - Add an ephemeral-by-design paragraph to the intro per PR review feedback from ats3v. - Make the async SDK example actually runnable (bare `await` outside a function is a SyntaxError) and annotate fs.read()'s bytes return type on the context-manager example, both prompted by user confusion. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
stop() and terminate() don't check suspension (sandbox_routes.py) -- only create/start/exec/fs calls do. The old text implied stop was blocked too, which would have stopped suspended users from cutting off their own billing. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
ats3v
approved these changes
Aug 21, 2026
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Summary
New docs page for the DeepSands sandbox service (isolated microVMs for running untrusted code), added ahead of general release per mentor feedback that pre-release docs matter — especially the non-obvious details (lifespan,
/workspace-only persistence, isolation boundaries).sandboxes/overview.mdx, added to nav between GPU Instances and Hosted Agentsdeep-sandsservice) and thedeepinfra-pythonSDK source, not just the marketing blog post — plans/pricing table, lifecycle states, three independent timeout clocks (idle / 24h hard age / 7-day stopped retention), filesystem persistence model, isolation/networking, quotas, typed errors, Python SDK usage, and raw HTTP API examples/workspace(not/work) for all paths — the backend only accepts/workspace; the SDK's own README/examples currently use/work, which is a separate bug worth fixing in that repoTest plan
docs.jsonis well-formed JSONnpx mint broken-links— no broken linksmint dev(not run in this environment)