The fixture measured the first half of a route and stopped. V-655 split a
routing decision in two, and the second half arrived with no fixture, so
Decision.Source had no accuracy number at all.
want_source is a pointer because the destination has three states and a
bare string has two. Absent is every intent but query, which never reaches
queryWalk. Present and empty is the SourceUnknown contract: name nothing
and let the daemon walk the chain, which is right whenever two destinations
can both answer and the utterance does not choose. Present and named is a
destination the route must produce.
A destination miss does not fail the case. It goes in SourceReason, never
in Reasons, so Accuracy and IntentAccuracy stay the numbers they were and
69/91 still means what it meant. SourceAccuracy is the second number, over
the labelled cases only, because a percentage of the whole fixture would be
a percentage of turns that never ask a query source.
A clarified or mis-routed case still counts in the denominator. It named no
destination and that is a miss, not a case to skip, or the denominator drops
every turn the route already lost.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_013ptwopxyo3Z2kwFckHkLvN
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