Separate metrics measurement dimensions

notes/conceptual-substitution-audit-2026-07-12.md

@@ -1433,3 +1433,12 @@ the mutable ref Idunn watches and the immutable commit it deploys. The Idunn
 receipt contract already records both `watched_ref` and `source_commit`.
 Deployment requests now require both fields: trigger topology and artifact
 identity are conjunctive evidence.
+
+## Measurement availability is not measurement equivalence
+
+The metrics packet accepted token-or-cost and review-minutes-or-count summaries.
+Those quantities answer different questions. It now requires token usage, an
+explicit cost availability status, review duration, and review-event count.
+Unknown vendor pricing may be reported as unavailable rather than fabricated;
+it may not erase token accounting. A review count may not erase elapsed load,
+and duration may not erase how many review events occurred.

notes/fresh-workspace-handoff.md

@@ -534,3 +534,10 @@ Deployment git identity is also split. Requests now require both watched ref
 and source commit SHA, matching Idunn's receipt. A branch/ref identifies the
 mutable trigger path; the commit SHA identifies deployed bytes. Do not collapse
 them back into one convenient string.
+
+Metrics packet completeness is now explicit: token summary, cost availability
+status, review duration, and review-event count are separate requirements.
+This permits honest unavailable pricing without treating cost and tokens—or
+duration and event count—as interchangeable. Next inspect projected accounting
+status to ensure receipt presence cannot close a row whose required dimensions
+are absent.