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Show HN: Composer – AI architect / MCP for software architecture diagrams
Hi everyone!
I built Composer, which is a tool turns your ideas into architecture diagrams. You can also use MCP to turn your EXISTING codebase into a visual diagram!
It connects to all possible tools using MCP (Claude Code, Codex, OpenCode, etc.)
The goal was to make system design easier and to be able to draw out what I wanted to make before I started / to explain to others.
Its currently live at usecomposer.com and free!
I’d love feedback on whether it feels useful for real projects and where it breaks down. :) Thank you
- pdfkeyz 6mo agoIt looks good. But I have to ask a lot of questions before finishing a diagram. Could we improve it?
- olivergrabner 6mo agoGood point! I got alot of feedback like that. I've updated the model to ask less questions and build more before iterations
- couscous13 6mo agoLooks good to me
- olivergrabner 6mo agoThank you!
- st4rked 6mo agoLOVE IT!!~ ^^
- Vallar 6mo agoThis looks pretty good. Any plans to have sub-graphs? So if your app has multiple services, each service would have a separate graph and you link between them?
- olivergrabner 6mo agoThank you! And yes, I was thinking of adding different levels of complexity since it could get messy with alot of nodes.. I’m adding that feature very soon
- Remi_Etien 6mo ago[flagged]
- jacksonhrachs 6mo agoSolid stuff, love it!
- cbradtmu 6mo agoHow wonderful!
- Arjun-Knight 6mo agoLGTM!