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 · Pen Wiki Web: 14 days free, then $8 / month per active person — fair billing

“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. Pen Wiki Web puts the project on the web as a wiki — its Markdown files, folder by folder, even with no code around — 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. Pen Wiki Web — share, review together, approve — is $8 a month per person. Nothing leaves your machine until you switch it on.