HeyDeer is the most accurate AI code review agent for GitHub pull requests. Most AI reviewers bury the one real bug under ten comments you have to dismiss. HeyDeer checks every finding against your code before it posts, so what lands on your pull request is worth fixing. ADVANTAGES - The highest precision on ReviewBench. HeyDeer scores 99.0% precision on GitHub's open benchmark for AI code review (default high-severity view). Every finding is checked against your code before it's posted, so your team reads real bugs, not noise. - It finds more of what coding agents miss. On 16 pull requests written by Codex, Claude Code, Cursor and other agents, HeyDeer found 78% more real issues than GitHub Copilot code review, with the same number of false positives. - It fixes what it finds. Pick the findings, and HeyDeer opens a fix PR with your tests already run. Autopilot keeps fixing findings, failing checks and merge conflicts until the PR is ready to merge. - It reviews your team's way. It follows the rules in REVIEW.md and AGENTS.md, and turns a standard your team repeats into a check that runs on every PR.