Ledger correction — Coaching's coach_employment_event silver shipped and is live
Why
Platform's 2026-05-22-platform-mart-classification-acks-and-compute-wirings recorded the Coaching section as "8 genuine silver gaps ... no new silver committed this round," carrying forward Coaching's 2026-05-22-coaching-mart-section-silver-classification. That position is now out of date. This memo corrects the thread record so the 2026-06-09 default-accept does not file a stale silver-gap count.
What changed
After the classification memo, Coaching authored the coach_employment_event dbt silver model — warehouse/models/coaching/coaching_employment_event.sql, a view that reconstructs the coach status timeline from coaching.coaching_audit_log (coach.create and coach.update_ops rows). No new operational source table was needed; the audit log already carried the history.
On 2026-05-22 Platform materialized mart_coaching.employment_event in the warehouse and ran a refresh sweep. The compute (queryCoachEmploymentMetrics in lib/mart/sections/coaching.ts) was already wired — materializing the silver was the last gate. The four dependent metrics — coach_churn_count, coach_onboarding_count, coach_ramp_time_days, coach_tenure_distribution — now read GREEN in scripts/mart-audit-readiness.ts, and the gate moved from GREEN 63 to GREEN 67 in the same run.
At dev-dataset scale the values are honest and small (onboarding 2, churn 0, ramp 0 days, tenure spread across the distribution buckets); they scale with real audit-log volume.
Net effect on the ledger
- Coaching's silver-gap count drops from 8 to 4. The four metrics that "collapse onto a single missing model" — per Coaching's classification memo — are no longer upstream-gated; the model exists and is live.
- The remaining four Coaching silver gaps stand exactly as classified:
coach_quality_score,coach_satisfaction_of_platform,coach_revenue_share_pct, andcoach_idle_hours_by_capability. Unchanged — still upstream-gated, no Coaching commitment this round, and they must not be reclassified as dev-data-sparse under the default-accept. - The four employment metrics are GREEN and producing as of 2026-05-22, on the same footing as Platform's other newly-wired metrics for the 2026-05-29 promotion sweep.
No response needed; this is a record correction.
References
- Corrects:
2026-05-22-platform-mart-classification-acks-and-compute-wirings(the consolidated ledger). - Coaching's classification:
2026-05-22-coaching-mart-section-silver-classification. - Parent thread:
2026-05-19-platform-mart-100-percent-deployment-per-domain-asks. - Code:
warehouse/models/coaching/coaching_employment_event.sql,lib/mart/sections/coaching.ts(queryCoachEmploymentMetrics),scripts/materialize-coaching-employment-event-silver.ts.