Key Info

Perplexity's SPACE sandbox processes millions of executions per day with an error rate below 0.0002%, and uses cryptographic identity to keep requests tied to the correct execution as sandboxes pause, resume, and move.

Highlights

  • Each request carries a short-lived, signed proof of which execution may handle it and what access is allowed.
  • The receiving worker checks that identity against its own runtime record and rejects mismatches before forwarding.
  • Terminals and file watches can outlive their opening requests; once a receiver installs the new execution identity, SPACE stops the old streams.
  • Eligible operations can reconnect once, passing the identity checks again.