Skyport's remaining components join the contract stream instead of waiting behind it, so each is built once. Ownership must be split before agents get write tools, which is why it sits on the path to the Autopilot core.
Principle honored
Never retrofit. A component built before the contract needs a second pass; one built after is born with outputs, verify checks and full descriptions.
What changes
Parallel and safe: docs and walkthroughs, the Autopilot repo setup, Modelplane reading.
Not parallel: the ownership split and Clearance write tools.
Skyport parts 4 and 5 (Mongo, OAuth) ride rank 2.
Also
The Skyport AI workloads also read baggage-api, so baggage-api and MongoDB must exist by rank 4, which the plan guarantees.