MergeSentry

MergeSentry is a web app (with a lightweight GitHub/GitLab app) that enforces “merge readiness” beyond basic CI. It watches pull requests and blocks merging when hidden risk signals appear: flaky tests, high-churn files, missing rollback plan, suspicious dependency changes, or unusually large diffs for the team’s norms. It also auto-generates a short PR risk brief: what changed, what could break, and what to verify in staging, using AI to summarize diffs and past incidents. Unlike generic code review bots, it focuses on workflow guardrails and operational safety, not style nits. Teams can define policies per repo (e.g., payment services stricter than docs), integrate with Slack for alerts, and maintain an audit trail for compliance. The MVP targets GitHub first, then expands to GitLab/Bitbucket once retention is proven.