arena/docs/TERA_BOUNDARY.md

Tera source boundary

Arena is public Apache-2.0 environment work. Tera is Lumbridge's proprietary world simulator and is developed in the private lumbridge-private/tera repository.

The tera_spatial bridge and tera-crow-nav taskset were previously committed to Arena. Those historical revisions remain available under the license granted when they were published; deleting current files does not revoke that grant or rewrite git history. As of 2026-08-25, maintained bridge code, vendored simulator closures, Tera tasksets, and new Tera releases live only with private Tera.

The boundary is about source ownership, not rebuilding upstream machinery:

• Arena and private Tera both depend on Prime Intellect Verifiers for the environment/harness contract.
• Forge delegates training to Prime-RL across a subprocess boundary.
• No Lumbridge repository should implement its own generic rollout harness, trainer, environment hub, or GPU marketplace.
• Publishing an Arena environment to Prime Hub is a separate owner-approved action. Nothing in this repository publishes automatically.