Mo – checks GitHub PRs against decisions approved in Slack
Built this after a recurring frustration at our agency: the team would agree on something in Slack ("only admins can export users"), someone would open a PR two weeks later that quietly broke it, and nobody caught it until QA or after deploy. Mo watches a Slack channel for decisions. When someone tags @mo to approve something, it stores it. When a PR opens, Mo checks the diff against the approved decisions and flags conflicts before merge. It doesn't review code quality. It only cares whether the code matches what the team actually agreed to. Would love feedback, especially from anyone who's…
In plain words
Mo is a GitHub integration that monitors pull requests against decisions documented in Slack. It watches a designated Slack channel for approved decisions, then automatically flags any PRs that conflict with those agreements before they merge. Designed for development teams, Mo catches instances where code diverges from what the team previously agreed to, without reviewing code quality itself. It solves the problem of decisions being forgotten or bypassed weeks after they're made in Slack discussions.
written from the facts on this page · September 2026
From the sources
In the maker’s words, at launch
Built this after a recurring frustration at our agency: the team would agree on something in Slack ("only admins can export users"), someone would open a PR two weeks later that quietly broke it, and nobody caught it until QA or after deploy. Mo watches a Slack channel for decisions. When someone tags @mo to approve something, it stores it. When a PR opens, Mo checks the diff against the approved decisions and flags conflicts before merge. It doesn't review code quality. It only cares whether the code matches what the team actually agreed to. Would love feedback, especially from anyone who's been burned by this exact problem. Try it here: https://hey-mo.io
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