vercel-sandbox persistent-storage agent-workflows typescript

Vercel Sandbox Drives enable persistent cross-instance storage

Mount reusable persistent storage directories across sandbox instances to preserve agent state and shared datasets without per-sandbox duplication.

Summary

Eliminates re-initialization overhead for multi-run agent workflows and enables read-only snapshots for parallel sandbox execution. Critical for stateful AI workloads that need workspace persistence and concurrent access patterns.

Why it matters

Implementation verdict

Replaces ad-hoc file handling and ephemeral sandbox storage for agent memory. Requires explicit Drive.create/getOrCreate calls and region affinity awareness. Worth trying now if running multi-turn or parallel agent tasks; pricing ($0.05/GB-month storage in iad1) is reasonable for typical workloads but monitor read/write costs ($0.0015/$0.004 per GB).

Sources

1.A Drive is persistent storage that you mount as a directory in a Vercel Sandbox. It isn't tied to a single sandbox, so you can reuse the same Drive across runs and different sandbox instances.
2.A Drive supports one read-write mount at a time. After the Drive has been written to, multiple sandboxes can read from it concurrently by mounting point-in-time, read-only snapshots.
3.storage costs $0.05 per GB-month, reads $0.0015 per GB, and writes $0.004 per GB
4.Hobby includes 15 GB of Drive storage and 30 GB each of reads and writes per month

Dev Signal

Get briefs like this in your inbox — free, every weekday.

100+ sources compressed into one 4-minute read. Ranked, cited, implementation-ready.

Read the full issue →All briefs