Code review is widely practised and often misunderstood, treated narrowly as a bug-catching gate or, worse, a place to nitpick style. Those uses exist, but they undersell what a good review does. At its best, code review is one of the most valuable habits a team has — and most of that value has little to do with spotting typos.
Reframing what reviews are for changes how you give and receive them.
Spreading knowledge
One of the biggest benefits is that review spreads understanding across a team. When someone reads another person’s change, they learn about that part of the system, and knowledge stops being locked in one head. This reduces the risk of a single person being the only one who understands something critical, and helps newer members absorb how things are done.
A team where everyone reviews each other’s work is a team that shares context, not one where knowledge sits in silos.
Improving design, not just correctness
A thoughtful reviewer asks not only "is this correct?" but "is this clear, is this the right approach, will this be maintainable?". Fresh eyes catch confusing names, tangled logic and simpler alternatives the author was too close to see. These design and clarity improvements often matter more over time than the occasional bug caught.
The best reviews are conversations about how to make the change better, not verdicts handed down from on high.
Doing it humanely
Because code review involves people’s work, tone matters. Reviews should be kind, specific and focused on the code rather than the person, distinguishing genuine issues from mere preference. Automating trivial style checks frees human reviewers to focus on the things only humans can judge.
Understood properly, code review is less a gate and more a shared craft — spreading knowledge, refining design and lifting the whole team’s work, with bug-catching as a welcome side effect rather than the main point.