Online RootFS growth
On growth-enabled images, Sandbox0 automatically expands the writable RootFS as free space runs low, within a configured sparse logical ceiling up to 64 TiB. Agent processes keep running. Growth is enabled in the qualified Cloud region; confirm activation for other regions. Existing images and snapshots retain their captured storage geometry. The ceiling is logical capacity, not preallocated host disk.
The cited research-services profile and automation SDK do not establish automatic online low-space growth of a complete durable hosted RootFS. Confirm any current computer/storage contract rather than inferring it from desktop automation.