PR Lens draws every pull request as an animated architecture and data flow diagram, posted as a comment on the PR itself.

• See the blast radius. Which components a change touches: new in green, changed in amber, removed in red
• Watch the data flow. Animated arrows trace the request path your change created, step by step.
• Stay in GitHub. Toggle detail levels with checkboxes in the comment. No dashboard, no tab-switching.
• Not Mermaid. A bespoke renderer built for diagrams you actually want to read.
• Zero setup. Install, open a PR, and the diagram appears in under a minute. Free for open source.

Built for reducing the cognitive load on reviewing AI-generated PRs. by the team behind Coldtea