Mo

Mo is a tool that helps software teams make sure their code matches the decisions they've already made. It acts as an enforcement layer between where decisions are discussed—like Slack, Microsoft Teams, Jira, or Linear—and where code is merged, like GitHub, GitLab, or Bitbucket. When a developer creates a pull request, Mo checks the changes against a database of approved rules captured from those discussion sources. If a change conflicts with a rule, it blocks the merge and shows exactly which line of code broke the rule and links back to the original discussion.

It works by letting team members tag @Mo in their existing chat or project management tools to capture a decision as a rule. No one needs to learn a new system. When code is later submitted, Mo's rule engine automatically compares the diff. It doesn't look for bugs or syntax errors; it specifically looks for 'drift'—where the implemented code deviates from agreed-upon product, pricing, security, or compliance rules. The tool provides a clear audit trail, connecting every failed check directly to its source.

This is most useful for development teams that need to maintain consistency and prevent costly oversights. It stops a developer from accidentally extending a free trial period past an approved limit, removing a security guardrail, or changing a user onboarding flow without approval. By catching these conflicts before merge, it turns scattered team agreements into an enforceable part of the development pipeline.