Code review is one of the few engineering practices where experience doesn't automatically make you better.

You can have ten years of reviewing PRs and still leave inconsistent feedback, miss security issues in auth code, or write comments that start arguments instead of conversations. The difference between a good reviewer and a great one isn't talent — it's a system.

Most teams don't have one. They have a vague shared understanding of "what good looks like," which means juniors are guessing, seniors are repeating themselves, and every PR review is a slightly different experience depending on who picks it up.

I built PR Review Canvas to fix that for my own workflow. It's a free, MIT-licensed code review kit with a 51-item interactive checklist, PR templates, guides for different experience levels, and annotated examples. No account, no install, no tracking.

Here's what's in it and how to use it.