I first encountered LGTM on some of Airbnb's open source repos, here's an example of it at work on a closed [1] and open [2] Enzyme PR: 1: https://github.com/a

I first encountered LGTM on some of Airbnb's open source repos, here's an example of it at work on a closed [1] and open [2] Enzyme PR: 1: https://github.com/airbnb/enzyme/pull/449 https://github.com/airbnb/enzyme/pull/449 2: https://github.com/airbnb/enzyme/pull/459 https://github.com/airbnb/enzyme/pull/459 I love that this enforces a social practice a lot of teams use already, and I'm pushing to add it to my own team's workflow (both internal and for open source contributions). Edit: another tool in the same vein people might be interested in is Facebook's mention-bot [3], which analyzes PR diffs and @-mentions people it thinks would be good reviewers based on git blame of lines touched. 3: https://github.com/facebook/mention-bot https://github.com/facebook/mention-bot