OpenPrinterOpenPrinter Agent Gateway
Server invalidates configuration
Use this notification when host-owned agent or printer configuration is
stale. scope narrows the refresh and revision lets the agent avoid
applying an older configuration snapshot.
Address
/.well-known/openprinter/gatewayDescription
The authenticated, bidirectional OPPA gateway socket.
Messages
A notification that host-owned configuration has changed. The agent
refreshes only the requested scope and may use revision to avoid
applying an older snapshot.
Payload
Message Example
{ "protocolVersion": "1", "messageId": "config_invalidated_01", "sentAt": "2026-08-21T00:02:00Z", "type": "server.configuration_invalidated", "payload": { "scope": "printers", "revision": "printers_8" }}