Mark LXXXIX
The Sentinel
Shipped April 25, 2026
What it is
Founder daily ops digest email. /api/cron/sentinel-daily runs 12:00 UTC (7am Central) sending to FOUNDER_EMAILS allowlist: yesterday's signups, takes, advance verdicts, paid conversions, active trial count by expiration bucket, failed crons by name, provider error counts. One read replaces logging into 4 dashboards. Compounds Mark XXVI Watchtower + Mark XXI Vault + Mark XLV Treasury for daily push instead of pull.
Related — same category
Auth, schema, RLS posture. The first stone of the kingdom.
Email magic-link auth + COPPA-aware DOB capture for minors.
Server-side analytics — typed event union, PostHog backbone.
Parent consent flow for minors. COPPA-clean teacher access.
See it in the product.
Every Mark exists because string players asked for it. Free demo, no card.