August 16, 2026 / Daily Edition / 1 story in this issue
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A Sandbox Isn’t Finished Until the Repository Says So

Mastra Factory is making one understated agent-system choice explicit: before a session workspace is scrubbed, pooled, or destroyed, the repository can say how its own worktree should be put away.

A rough cream-paper diagram shows a project repository teardown card running before a scrub-worktree card, then branching to pool or destroy and cache invalidation, with a red caveat stamp that a failed hook is not proof of cleanup.
Diagram Punkcleanup belongs to the repository before a sandbox can be reclaimed.
repo mastra-ai/mastra evidence
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Evidence: commit c7a5020 / August 16, 2026 / Daily Edition
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