The repository describes it as pluggable runtime sandboxes for running agent and user code in isolation, and identifies Firecracker microVMs as the underlying technology. It also says SPACE powers Perplexity Computer in production. These are the concrete claims visible in the public repository; they establish a release and stated use, not an independent evaluation of security or performance.
Thesis
Publishing a production agent sandbox makes runtime isolation a more inspectable and reusable part of the agent stack.
Observed facts
Mechanism
SPACE packages isolated code execution as a pluggable runtime sandbox, rather than leaving sandboxing solely as an opaque property of a hosted agent product.
Why now
Perplexity has made the repository and its Apache 2.0 license public, so teams can inspect the implementation and assess reuse.
Implications
Teams building agent systems can compare a concrete Firecracker-based implementation against their own isolation requirements before deciding whether to adopt or adapt it.
Evidence boundary
The repository description does not establish an independent security audit, comparative performance, operational readiness for arbitrary environments, or adoption beyond the stated Perplexity Computer use.
Watch conditions
Whether the repository documents and demonstrates reproducible deployment, security boundaries, and maintenance practices as outside teams evaluate it.