I Built Karpathy's AI Knowledge Base in Claude: Try it!
A 36-minute live build of the second brain Karpathy posted — rebuilt locally in Claude with three folders, one file, and zero code.
May 23rdA 39-minute live build of a knowledge-grounded Notion AI specialist, using Seth Godin as the source material.
Generic AI gives generic advice, but an agent built on a curated knowledge base — one book, one framework, one trusted expert — gives grounded specialist counsel that improves every time you feed it more.
The reason AI advice feels generic is that it draws from everything, not from sources you trust. The fix is a three-layer agent architecture: instructions that define role and boundaries, skills that define reusable processes, and a knowledge base that holds the curated frameworks you actually want the agent to reason from. The video builds this live in Notion using Claude Opus, sourcing a marketing specialist from Seth Godin's This Is Marketing, and demonstrates that the agent correctly refuses to answer when the knowledge base is empty and gives grounded, source-cited advice once it is seeded.
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What if you could clone any expert into an AI adviser? Opening promise and channel context.

AgentOS hub tour: global instructions dispatch to specialists made of agent instructions, skills, and a knowledge base. The knowledge base is the heart.

Demo of the full AgentOS hub, distinction between personal agent (consultancy) and custom agents (automation + credits). Download link pitched.

Using the Meta Agent on Claude Opus 4.7 to plan the marketing strategy specialist. The agent reads its own KB before answering. Four clarifying questions answered.

Defining the KB schema live. Notion button automation creates a pre-structured KB page in one click.

Meta Agent writes the marketing specialist instructions including knowledge base entry gate. Instructions reviewed and slimmed 55% for token efficiency.

Two specialist skills built and reviewed. Book Ingestion Helper generalised to work across any knowledge base. Instructions linked into global routing.

First live test proves the system: agent correctly flags low confidence and no KB entries, refuses to answer without grounding, recommends ingestion.

Seth Godin PDF pasted chapter by chapter. Agent extracts, atomizes, and normalizes into structured KB entries. Chapter list used as ingestion guide first.

Positioning question for AgentOS answered by the now-seeded marketing specialist using Godin frameworks. Result read aloud with Speechify. Result deemed genuine and specific.

Harmonious Seeker custom agent configured to run weekly, review KB for gaps, suggest new entries from reputable sources. Credit cost acknowledged; personal-agent skill alternative recommended.

Existing YouTube content strategist agent shown as proof of long-term value. AgentOS download CTA. Channel milestone: 20k subscribers.
The gap between generic AI and genuinely useful AI is not model quality — it is whether the agent is anchored to a curated body of knowledge that was chosen deliberately.
“Without the knowledge base, I found that the end AI tends to just be still a bit generic, but with — like, a very clear process that it's following.”
“This is a specialist, not a chatbot giving you the same generic advice it gives everyone else.”
“Make it, trigger it once a month. Review the knowledge base, flag anything outdated, suggest three new entries based on the gaps — and it will get sharper every cycle.”
See every word as it's spoken — crank it to 2× and still catch all of it. The same dual-channel trick behind Amazon's Kindle + Audible.
What if the AI adviser you have been missing was already sitting on your bookshelf? The creator opens with a stack of business books and a single question: can you take any expert's entire framework and clone it into an on-demand specialist — one that reasons only from sources you trust, not from the average of the internet?
Every specialist agent needs: instructions defining role/boundaries, skills as reusable SOPs, and a knowledge base of curated principles the agent searches before answering.
The structured fields that make a knowledge base searchable and useful to an agent — not a document dump but a normalized database of atomized insights.
The three-step book ingestion process that turns raw chapter text into structured, agent-ready knowledge base entries.
A scheduled self-improvement cycle where the agent audits its own knowledge base and suggests additions, turning a static library into one that compounds over time.
“Go and check out AgentOS, newly updated as of this week with these new database systems. Link in the description.”
Soft, conversational pitch after the demo value has been fully delivered. Also plugs a business OS template coming soon via email list.
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38:30A 36-minute live build of the second brain Karpathy posted — rebuilt locally in Claude with three folders, one file, and zero code.
May 23rdA 26-minute live walkthrough of the five-folder AI-maintained knowledge base that runs itself.
June 4thA 93-minute beginner primer on building AI agents that actually work, from a self-taught dev who argues simplicity beats complexity every time.
June 1stA 9-minute teardown of the three structural gaps that make most AI agents flaky and exactly how to close them in ten minutes.
May 23rdA 14-minute system blueprint: three skills to train your AI, two to pressure-test it, one to ship.
June 2ndA 7-minute live demo of Shockwave, a free open-source note app with an AI agent baked directly into the editor.
May 31st