Limits
Preview behavior and boundaries.
hostc is in preview. The core tunnel path is usable, but anonymous tunnels intentionally stay simple while the product hardens.
Current limits
Anonymous tunnels are temporary and do not yet include accounts, reserved domains, dashboards, or daemon mode.
Temporary tunnels
Anonymous tunnels are ephemeral. If the client connection is lost, hostc may create a new tunnel id and public URL.
HTTP and WebSocket
hostc supports normal HTTP requests and WebSocket upgrades over the same local port.
Protocol upgrades
Early protocol versions are intentionally not backward compatible.
Upgrade the CLI or SDK
If the server protocol changes, update the CLI or SDK so client and server speak the same protocol version.
Data channels
The v4 protocol represents public requests as streams and carries them over binary WebSocket data channels.
Streams over channels
Requests are represented as streams and carried over binary data channel WebSockets with credit-based flow control.