octonote CLI. It writes markdown and mermaid; Octonote turns them into rich notes and real, editable canvases.
1
Install and sign in, once per computer
2
Tell your agent about Octonote, once
3
Just ask
“Write up what we decided about the cache as a note in my Architecture notebook, with a diagram.”
Claude Code
CLAUDE.md, the Octonote skill and permissions.
Codex
AGENTS.md and the network sandbox.
Cloud agents and CI
Claude Code on the web, Codex cloud, GitHub Actions.
Writing content
The markdown and mermaid agents write.
What to ask
Agents only publish, share or delete when you ask for it. The guide they read tells them so, and
delete needs --yes.