OpenWiki: AI Agent That Auto-Writes Your Docs & Turns Gmail Into a Second Brain (Full Demo)

Your documentation is stale the moment you write it — so let an AI agent maintain it for you. This is a complete, hands-on walkthrough of OpenWiki, the open-source CLI from the LangChain team that documents your codebase AND builds a personal "second brain" from your Gmail — all with real demos, no mockups. WHAT YOU'LL SEE • How the DeepAgents-powered documentation agent works end to end (animated) • Docs-only guardrails: an agent that literally cannot touch your source code • Full install from a fresh clone in 7 commands • Live demo: Gmail authorization, chatting with your personal brain from the terminal, and browsing the wiki as a local website • 100 real emails distilled into commitments, bills, and themes • Bonus: pointing OpenWiki at a real repository and getting a 4-page wiki, CI workflow, and agent files from one command CHAPTERS 0:00 Intro 0:05 The problem with documentation 0:33 Meet OpenWiki 0:53 How OpenWiki works (animated) 1:28 Two modes: repo wiki and personal brain 1:53 The terminal UI (Ink) 2:15 Under the hood: the architecture 2:46 Guardrails: a docs-only agent 3:11 Bring your own model (OpenAI, Anthropic, OpenRouter...) 3:37 The SHA-256 snapshot gate 4:00 Installing it, step by step 5:10 The whole install in 7 commands 5:29 LIVE DEMO: authorize Gmail 6:07 The demo loop, animated 6:45 Chatting with your personal brain 7:15 Browsing your brain as a website 7:38 How the Gmail connector works (animated) 8:24 Two-stage ingestion: pull, then synthesize 8:53 The real ingestion run — 100 emails 9:33 A day of email, distilled 10:04 BONUS: auto-documenting a real repository 11:00 Code mode, step by step (animated) 11:41 The wiki it built for my site 12:09 Takeaways 12:38 Thanks for watching REFERENCES AND LINKS • OpenWiki on GitHub: https://github.com/langchain-ai/openwiki • OpenWiki on npm: https://www.npmjs.com/package/openwiki • DeepAgents (the agent framework underneath): https://www.npmjs.com/package/deepagents • LangChain: https://www.langchain.com • docsify (the local wiki viewer used in the demo): https://docsify.js.org • Install: npm install -g openwiki HOW THIS VIDEO WAS MADE Slides rendered with Remotion (React), narration by Supertonic TTS (local GPU), illustrations by Google Nano Banana, animated diagrams synced to the voice-over with word-level whisper alignment. Diagram icons: Font Awesome Free (CC BY 4.0, Fonticons, Inc.). Sensitive personal details in the demos are blurred. Presented by Omar Kamal Hosney More articles and cheatsheets: https://omkamal.github.io #AI #OpenWiki #LangChain #AIAgents #DevTools #SecondBrain #Documentation #Automation