That would make handoff much easier. Buda already distinguishes persistent Agent Drive (/agent), shared space storage (/space), and /tmp, which is cleared when the sandbox restarts. Its work rules also suggest a dated folder under /agent/.buda/works for temporary work artifacts; that folder is persistent, unlike /tmp. There is no single Agent setting today that enforces a default final-deliverables folder and automatically checks /tmp before a task ends.
For now, put an explicit rule in the Agent instructions or a Skill: final files go to /agent/deliverables/project-name/; deliverables for other team members go to an agreed /space/ folder; scratch downloads and intermediate files use /tmp or the dated work folder. Before finishing, the Agent should list the files it created, reopen the final ones from persistent storage, and give you their paths. If the only finished copy is still in /tmp, move it before reporting success. This is a workflow convention, not an enforced safeguard.
We have recorded a per-Agent default output path, a pre-completion check and a clickable deliverables list as a product request. Would you want one fixed folder per Agent, or an automatic subfolder per Project? The Chinese discussion covers the same idea.