Datree is a git-based policy engine.
It allows engineering teams to automatically enforce coding standards and security policies directly within their git workflow.

Datree connects with GitHub pull requests to provide automatic policy compliance checks and insights for every code change. Create and enforce custom or built-in policies, in the context of your dev stack.

Bring your code to the conversations you care about with the GitHub and Slack app. A separate Slack subscription is required. With two of your most important workspaces connected, you’ll get updates about what’s happening on GitHub—without leaving Slack.