A couple commands have bad or inconsistent error handling. This should probably be unified and simplified. I'm not sure what the exact design should be; probably something like the !latex errors, although those are more verbose than most error messages should be. Some specific examples of issues, probably not exhaustive but hopefully representative:
When I try to do an invalid !snooze (eg.,
!snooze channel from PM, instead of the required
!snooze server:channel), there is no feedback whatsoever. Ideally something like that should print an error message and maybe the help text for snooze (which doesn
t mention server:channel, but that's possibly a different issue). To go with other failed commands like!latex`, maybe it should react with :no_entry_sign: too.
A !help on a nonexistent command reacts with the checkmark and then does nothing. The checkmark usually indicates ack or success, but no help was successfully displayed.
When you try to !roll something completely unparseable, like
!roll rick, there is no response whatsoever. Other sorts of failures have custom error messages.
Related to point 2 (and maybe 3?), attempting to invoke a nonexistent command (e.g.
!invalidcommand) yields no response; some sort of error message would be nice here.