The Family Is Listening-Yes, Consulted-Never
Runtime dependency zero means boot equals one reachable local leg. No vault. No identity host. No coop. No kit import inside the engine. The cleanroom gate drives the shipping front door with an empty home: identity is bare, instruction hashes are empty, the only HTTP client in core refuses every host that is neither the egress fence nor a declared leg endpoint. After the session, the process map holds nothing outside the environment and the firebrand package.
A sibling surface may be listening on the same machine. The gate records that as listening yes. It asserts consulted never. A family machine may already have an identity host up. That is not a failure. A request that crossed is.
Vendor-Zero Is the Import Lint
Core and dialects import the standard library plus one HTTP client. Legs are plugins. A vendor SDK may exist as an observed specimen under legs. It never heads the cleanroom. If boot required that SDK, the cleanroom would be a press release. The import lint is the fence you can run in CI. An essay in this quest is not.