Lucidchart empowers you and your team to create and collaborate on architecture diagrams, mockups, user flows, flowcharts, and other visuals in real time.

With Lucidchart, you can include these visuals in GitHub so team members can quickly understand an issue or pull request. Simply insert a public link to the Lucidchart document—the link will unfurl to show a preview, and unlike static diagrams, the link ensures that users always have access to the current version of the visual.

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.