Introducing Claude Architect Make Plan Mode feel like a whiteboard session

Architect is a plugin to create interactive architecture diagrams you can review, annotate, and revise with Claude.

Coding agents one-shot prototypes, but production systems need more steering. Long prompts and many rounds of back-and-forth in the terminal can feel draining.

I built this because I love whiteboard sessions with engineers. It's the easiest way to grok the whole system, spot relationships, and point out feedback.

Architect makes Plan Mode feel like a whiteboard session: 1. Review the architecture at a glance 2. Drill down into containers and components 3. Comment directly on any node or edge 4. Review Claude's updates

Under the hood, Claude builds a semantic model of the architecture using the C4 model: Context, Containers, Components, Code. The model is stored in YAML and rendered as SVG diagram. Claude receives your comments through a Channel and updates the plan + diagram together

Try it now on github: https://github.com/willhennessy/architect

I'd love feedback. How would you use this? What features do you want to see next?