Play Developer Reporting API v1beta1 (crashRateMetricSet / anrRateMetricSet DAILY queries in America/Los_Angeles,
user-perceived 28-day rates, worst device models, errorIssues:search) and App Store Connect perfPowerMetrics,
diagnostic signatures and TestFlight crash submissions. Thresholds 1.09 % crash / 0.47 % ANR / 8 % per device
(developer.android.com/topic/performance/vitals): over = blocker, from 80 % = warn, in validate too (--no-health).
Weekly Markdown report with week-over-week change in .storebound/health/. MCP: health (read-only), health_report.
