Trace this production issue to its likely root cause
A written incident analysis linking the symptom to a deploy, commit, or dependency
Production issue: [describe the symptom and when it started]. Help me find the likely root cause. Start with the live app at [production URL] and confirm the symptom, with screenshots. Then check our deployment history at [hosting dashboard, e.g. your Vercel project] for deploys around the time it started, and our error tracker at [Sentry project link] for matching error spikes — note the first-occurrence time. Cross-reference recently merged PRs in [owner/repo] on GitHub and read the diffs of any that touch the affected area. Write an incident note: a timeline of what changed and when, the most likely culprit (deploy, commit, config, or third party), the evidence chain, and what you would roll back or patch first. Be explicit about confidence — separate proven from plausible.