The procedures are all of the form name/arity, or else of the form name, in which case all procedures with name name are skipped.
Note that skipped/1 is superseded by the predicate call set_flag(Proc, skip, on), which declares the procedure Proc as skipped.
Success:
[eclipse]: [user], skipped p/0.
q. p :- q.
user compiled 60 bytes in 0.02 seconds
yes.
[eclipse]: trace.
Debugger switched on - creep mode
yes.
[eclipse]: p.
S (1) 0 CALL p (dbg)?- creep
S (1) 0 EXIT p (dbg)?- creep % information on
yes. % q not printed.
Error:
skipped Proc/1. (Error 4).
skipped write(Term)/1. (Error 5).
skipped do. (Error 5).
skipped n/1. (Error 60).