not sure where you are going with this ...
Code:
  
alias -l sigidentifers 
{
  alias -s sigtime $ctime
  alias -s lastname $1
  alias -s ok $true
}; 

With support for static aliases
on *:signal:TEST:{
  sigidentifiers
  if ($sigtime > 0) echo -s TIME
  if ($lastname == $me) echo -s ME
  if (!$ok) halt};
 
Without support for static aliases

on *:signal:TEST:{
  if ($asctime > 0) echo -s TIME
  if ($1 == $me) echo -s ME
  if $true halt
}

or even: 

alias -l sigidentifers 
{
  if ($1 > 0) echo -s TIME
  if ($2 == $me) echo -s ME
  if $3 halt
}; 


on *:signal:TEST:{
  sigidentifiers $asctime $1 $true 
}


Mind you, debugging using "static" would also be a nightmare:

What would "/do fred" return?
"Invalid command" in "/do" may not shed too much light!

Cheers,

DK