# Runtime capability boundary UE4SS is only a possible Companion-local implementation detail. It is not a feature gate: no SCUM game, database, UE4SS build, or source revision controls plugin availability. The Companion declares availability from its server-bound typed ports and runtime schema probes. Plugin-generated SQL, RCON, and management-program request text is declared through the protected Platform-to-Run transport, not executed by the Companion. Callers never receive a socket, credential, path, or raw transport reply. A management-program request is not host OS shell access. Semantic events come from bounded Run stdout/stderr console records. Unknown records create diagnostics and never produce fabricated events. DSNs, rows, connections, and credentials do not leave Run; request text is protected and redacted from browser and audit projections.