How to run a metrics-first vercel-optimize / CDN + PPR health check for CentraKit apps.
Use this after shipping Cache Components / Functions changes. Do not invent cost or caching
recommendations from a code-only grep — follow vercel-optimize
(collect-signals → gate → investigate).
vercel linkvercel metrics grouped by cache_result, ppr_state, and service for
SaaS hub routes. Rising blocking / unexpected BYPASS on authenticated shells is a regression
signal (see cdn-caching).apps/saas/app/api/ai/** (now
maxDuration = 300) and the API service's minute cron
/api/v1/internal/channel-webhook-jobs.Sentry.withMonitor in each cron route; automaticVercelMonitors is off for App Router).EXPOSE_TESTING_API=1 (see
instant-nav.rig.md).Record findings in the PR or ops runbook; only change platform memory/region/Fluid settings when metrics justify it.