Visualize Code Changes with PR Lens: AI-Powered Diagram Tool

Visualize Code Changes with PR Lens: AI-Powered Diagram Tool

The PR Lens skill allows developers to transform code changes into architecture or data-flow diagrams directly within GitHub. By authoring a graph document from a code diff, validating it, rendering it as an animated SVG, and attaching it to a pull request, developers can visualize the shape of changes effectively.

What this skill does

• Reads code diffs with git diff --find-renames using the merge base as reference.
• Authors a JSON document in .pr-lens/graph.json following predefined shapes and rules.
• Validates the JSON document to ensure it conforms to the required structure.
• Renders the document as an animated SVG that integrates into GitHub pull request comments.
• Enables corrections to diagrams by updating the repository's .github/pr-lens.yml.

Who it is for

• Software developers using AI coding agents like Claude Code, Cursor, and Codex.
• Development teams wanting to enhance code review processes with visual aids.
• Project managers overseeing code collaboration and documentation.

Use cases

• Creating visual representations of code changes to enhance understanding during code reviews.
• Attaching diagrams to pull requests for better communication of architectural modifications.
• Correcting and updating existing diagrams in code repositories for improved accuracy.

Technical details

• Integrates with GitHub, rendering SVG diagrams within pull requests.
• Utilizes agent-skills, aiapplication, and pr-lens tools.
• Works with JSON documents specifying lanes, nodes, edges, and ordered flows.
• Supports animation of diagrams for interactive exploration within GitHub comments.

Source & Licence

This package is built on open-source work published by coldteadotai (coldteadotai/pr-lens) and distributed under MIT. The original licence text and copyright notice are included in your download.

Personal and commercial use, modification and redistribution are permitted, provided the original copyright and licence notice are retained.

Your purchase covers curation, licence verification, packaging, documentation and instant delivery. It does not grant exclusive rights to the underlying open-source code, which remains available under its original licence.

Delivery & Support

• Delivery: instant — a secure download link is emailed to you as soon as payment is confirmed.
• Format: ZIP archive containing the skill files, documentation and the original licence.
• Support: support@mcpcart.com — we aim to reply within 2 business days.
• Updates: updates are included only where stated on this page.

Refunds

This is a digital product delivered immediately after purchase. By completing your order you request immediate delivery and acknowledge that, once the download has been accessed, the statutory right to cancel no longer applies to the extent permitted by law. Refund requests are handled in accordance with our published Refund Policy.

Claude, Codex, Gemini and Cursor are trademarks of their respective owners. MCP Cart is an independent marketplace and is not affiliated with, endorsed by, or sponsored by any of them. Compatibility references describe interoperability only.