VS Code 1.141 background shells and a long Sume render

VS Code 1.141 (Oct 7) lists background shell tracking for agent sessions. If an agent starts a Sume render and waits in a shell, the shell is only your wait. The job lives on Sume; if the shell goes, reopen it with sume jobs watch <job_id>, not with a second paid create.

What did 1.141 add?

The release notes list agent sandboxing on Windows, macOS and Linux, a session grid layout, background shell tracking, Codex handoff, and a view of discovered MCP servers in the Customizations editor.

Which commands recover a Sume job?

The CLI keeps recovery commands that never submit: sume jobs list, get, status, events, result, watch, download and cancel. The docs say jobs watch polls until the job reaches a terminal state or a timeout occurs, and jobs download writes finished media into a local directory.

sume jobs get <job_id> --agent --json
sume jobs watch <job_id>
sume jobs download <job_id> --output-dir ./out

What should the agent prompt say?

Three lines are enough:

• Print the job id when the create returns.
• If the shell or session is lost, run sume jobs get before anything else.
• Never submit the same paid request again because a local wait timed out.

Does a sandbox change this?

It can. A sandboxed agent may block network access to Sume's hosts, so check that api.sume.com is reachable first. Cancel is a separate command: sume jobs cancel <job_id> --confirm-submit, and it works only before generation starts. See CLI jobs and assets.