Alibaba open-sources its code review agent

🔥 What happened Alibaba open-sourced its internal AI code reviewer as a CLI called "Open Code Review." After two years serving tens of thousands of developers and catching millions of defects, it's now installable via npm by anyone. 💡 Why it matters Against Claude Code with the same underlying model, it hits notably higher precision and F1 while burning roughly one-ninth the tokens. The catch: recall is deliberately lower — it trades coverage for signal over noise. ⚡ Our take The real story is the architecture: deterministic engineering handles file selection and rule matching, the agent only makes dynamic calls. That's exactly where pure prompt-driven agents fall apart.