
· Jack Ivers · ESSAY
MCP Apps: Custom UIs Inside Claude
MCP Apps bring your custom UIs inside Claude. I built 4 and share what I learned: how they relate to MCPs and skills, rules of thumb, and more.

MCP Apps bring your custom UIs inside Claude. I built 4 and share what I learned: how they relate to MCPs and skills, rules of thumb, and more.

I built an MCP that lets Claude see its own Excalidraw diagrams, iterate on them, and save them to Obsidian.

Thanks to The Workflow and my AI pair, Claude Opus 4.6.