The integration pattern is simple: propose → authorize → enforce → receipt. REHT decides whether this exact consequence may become real now.
ALLOW, DENY or ESCALATE.Missing or stale authority is not inferred into existence. Unknown remains unknown. If the consequence cannot be authorized from authoritative state, execution does not silently proceed.
For a runnable public example, use the Executable Authority demo. For category semantics, see Consequence-time authorization.