Tool of the Week
Vercel Sandbox now supports forking sandboxes
Fork sandboxes from snapshots with inherited config/env via `Sandbox.fork()`, overriding specific fields as needed.
Enables parallel sandbox variants and multi-tenant isolation without manual config duplication. Cuts setup time for branched agent workflows and template distribution.
Replaces manual sandbox cloning. Requires SDK upgrade to @vercel/sandbox@latest or CLI to sandbox@latest. Ready now—SDK and CLI both ship the feature today.
- “The fork starts from the source's current snapshot and inherits its config and environment variables”
- “A fork takes about the same time as creating a sandbox, with the same limits”
- “If the source has no snapshot, it falls back to a fresh create, using the source's runtime and config”
- “Any parameter you pass overrides the inherited value”