Percentage of scheduled sessions completed across all triads. Gaps over 10 days are flagged automatically. A missed session resets a triad's streak — the platform surfaces this before momentum is lost.

Average word count and question completion rate across all post-session reflections. Triads that write more tend to engage more in subsequent sessions — this is the strongest single predictor of long-term program success.

Two signals: how often the teen uses the "slow down" feature (protective pacing = growing judgment), and whether phase-advance timing speeds up over sessions. Teens who start cautious and become more decisive are developing real facilitation instinct.

Whether all three generations contribute each session, measured via readiness signal timing. If one person signals ready consistently first and another consistently last, the triad may have a participation imbalance worth a facilitation note.

A composite of three lagging signals: phase pacing (healthy dwell time vs. rushing or stalling), readiness convergence (how quickly all three confirm), and prior reflection depth. Updated after each completed session — not live surveillance.