Static analysis vs. code review
Both are trying to catch problems before they ship. They're good at catching different problems, for a simple reason: one of them understands intent, and the other one doesn't get tired.
What a human reviewer catches that a tool can't
Whether the code solves the right problem. Whether the chosen approach makes sense given where the system is heading. Whether an abstraction will hold up under a change that hasn't happened yet. None of this is something a static rule can evaluate — it requires understanding intent, business context, and the roadmap, not just the text of the diff.
What a tool catches that a reviewer often misses
A nesting depth of 9 buried on line 340 of a 400-line diff. A complexity number that's been quietly climbing for six months across a dozen small commits, none of which looked alarming in isolation. An empty catch block that compiles fine and doesn't visually stand out while skimming. Reviewers skim, especially by the sixth pull request of the day — a rule that checks the same thing every time doesn't.
Review fatigue is a real, well-documented effect
The quality of a code review measurably drops as reviewer fatigue sets in — more lines per minute skimmed, fewer comments left, later pull requests in a review queue get less scrutiny than the first one. A static analysis pass doesn't have a queue and doesn't get tired at 4:45pm.
The right order to use them in
Run static analysis before requesting human review, not after. If a tool would have caught the raw new/delete pair or the wildcard import, let it catch that automatically so the human reviewer's limited attention goes to the thing only they can evaluate: does this approach actually make sense. Using a tool to clear the mechanical issues first is what lets human review focus on judgment instead of pattern-matching.
Solo developers don't get a code review at all
This is the actual gap REPO-SIGHT is built for. A team has a second pair of eyes by default — someone else has to approve the pull request. A solo developer, an indie hacker, or a student working alone doesn't. Running a structural analysis pass isn't a replacement for a human reviewer's judgment, but it's the closest thing to a second opinion available when there's no teammate to open a pull request against.