One other option, if you're an obsidian user is, just add the excalidraw plugin there, and then you can ask your agent to just create excalidraw diagrams as needed.
Definitely Opus 5.5 via claude code has no problems generating Excalidraw images with no additional software, just based on conversation.
Definitely Opus 5.5 via claude code has no problems generating Excalidraw images with no additional software, just based on conversation.