Each one investigates a specific concern in the diff. Sennin dives deep and surfaces what others miss — but only when it's a real problem.

Not just diff skimming. Sennin reads every comment on the issue and PR, learns the repo history, and checks that what's done matches what was intended.

Sennin remembers previous conversations, learns as it goes, and helps onboard new developers faster by sharing the team's principles.