Support for restartable errors is built on top of the basic error handling facility. The following words signals recoverable errors:

throw-restarts ( error restarts -- restart )

rethrow-restarts ( error restarts -- restart )

A utility word using the above:

throw-continue ( error -- )

The list of restarts from the most recently-thrown error is stored in a global variable:

restarts

To invoke restarts, use The debugger.