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examples/diagnosis.pl  view on Meta::CPAN

  Derived slots (set by the pipeline)
  ------------------------------------
  fever_grade      : 'none' | 'low' | 'high'   (computed from temperature)
  hypothesis       : the current diagnostic hypothesis
  confidence       : 0..1

Mechanisms illustrated:
  _NEEDED (2 levels)    temperature → infer from skin_temp (backward chaining).
                        fever_grade → infer from temperature (second _NEEDED level).
  _LOCK_UNTIL_STABLE    Agent 2 (Diagnose) is blocked while Agent 1 (Collect)
                        is still making progress.
  replay_all()          When Diagnose finds a hypothesis that unlocks new
                        symptom checks, it calls replay_all() so Collect
                        can complete the missing slots before Diagnose
                        re-evaluates.
  solved()              Called when confidence > 0.8.

=cut

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lib/Chorus/Expert.pm  view on Meta::CPAN

=head2 _LOCK_UNTIL_STABLE

An optional flag set directly on an agent frame:

  $agent->{_LOCK_UNTIL_STABLE} = 'Y';

When C<_LOCK_UNTIL_STABLE> is set on agent N, C<process()> skips that agent in
the current iteration if B<any> earlier agent has already succeeded
(C<_SUCCES> is true on that agent).  This implements priority-based sequencing:
earlier agents are given another full pass before the locked agent is allowed
to run.

Typical use: a "global cleanup" or "conformity check" agent that should only
run once all upstream agents have stabilised for the current cycle.

=head2 _REPLAY and _REPLAY_ALL

These flags are set by the corresponding engine methods and are handled
transparently by C<process()>.