mqtt and http take websocket's vocabulary: their Mode is LISTENER/SENDER, default names read mqtt_listener_… and http_listener_…, and mqtt's publish_queue_size is send_queue_size. No alias stays behind, so the flow store rewrites the old setting in every published and draft mqtt node when it opens, in the same migration as trigger → debounce. Every mqtt and http setting carries a one-line description for the editor, and the node-types reference uses one wording for direction and says that an http sender publishes a JSON object response on its outputs. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01WgBfkm4rCmtd1T4vHWjEPx