The only way such a PR can be reviewed is if it's accompanied with a detailed PRD and tech design documents, and at least half of that LOC count is tests. Even

The only way such a PR can be reviewed is if it's accompanied with a detailed PRD and tech design documents, and at least half of that LOC count is tests. Even then it requires a lot of interactive work from both sides. I have seen PRs third or quarter of this size that took weeks to properly review and bring to production quality. Unless there's something artificially inflating the side of it (like auto-generated files or massive test fixtures, etc.) I wouldn't ever commit to reviewing such a behemoth without a very very good reason to.