diff --git a/core-private-routes.md b/core-private-routes.md
index e232e92..ed1b666 100644
--- a/core-private-routes.md
+++ b/core-private-routes.md
@@ -37,9 +37,10 @@ The HTTP routes for heartbeat, usage, config, and error remain available as a fa
 
 - `code: string`
 - `name: string`
-- `host: string`
 - `ip: string`
+- `port: number` — agent HTTP port (required; auto-detected from `PORT` env on the node)
 - `region: string`
+- `domain?: string` — optional domain name (omitted on auto-registration; can be set later via admin panel)
 
 ### `NodeHeartbeatDto`