Understand your vibe code.
Together.

Turn AI-generated code into something you and others can understand, review and improve —
in your editor, with your own Claude Code. On the web, when others should weigh in.

Get Pen Wiki for VS Code

Free in your editor · Team mode $8 / month per person · No credit card needed yet

“I vibe coded it — and, as usual, realized I don’t understand so many things in it.”
Adam, Founder of Pen Wiki

Understand → Review → Comment → Improve → Verify

One loop, where you already work. Pen Wiki in VS Code opens any Markdown file the same way as the web: point at a sentence, a picture or a diagram, say what should happen, and your Claude Code chat does it — in your repo, with your permissions, nothing running in the background. Team mode puts the project on the web, so the people who never open an editor can read, comment and review it; their comments come back to your Claude Code here.

architecture.mdHow it works

Written from your code by Claude Code, kept in sync with it.

security-standards.mdHow it should work

Your own rules — security, architecture, compliance. No special format, no review engine.

security-review.mdWhere it differs

Every finding traced to the code. Comment on one, and it gets fixed — you approve.

One language for you, your AI and your code: Markdown. In your editor it is free. Team mode — share, review together, approve — is $8 a month per person. Nothing leaves your machine until you switch it on.