Using Spinoza’s idea of conatus, Tan describes personal AGI as an agent that works with your own memory and procedures. He contrasts this with rented assistants, whose capabilities and memory depend on a company’s products and decisions.
Own Your Intelligence
Speaker
Garry Tan, CEO of Y Combinator, argues that people can build personal AI agents around their own context and skills, speaking at a YC event.
Tan says an agent’s usefulness depends on combining a rented model with personal context and a harness that connects the two. He describes a library of about 220,000 Markdown pages built from his emails, meetings, notes, and other records, which helps his agent prepare briefings and meeting documents.
Tan says his system began with a folder of notes, then grew through daily additions and agent-assisted filing. His practical steps are to start a personal library, write a plain-English skill for a recurring task, schedule it, and have the agent turn completed work into reusable instructions.
Tan argues that skill files capture a person’s judgment, so ownership determines who benefits from that knowledge. In his example, support engineer Maya can take her skills to a new job if they live in her own repository, while company-owned files may continue to run after she leaves.
Tan responds that better models make personal context more valuable, and that retrieval alone is not the whole system. He cautions that stale facts and poor instructions can produce confident errors, and says provenance, contradiction checks, pruning, and control of the underlying infrastructure matter.
Takeaways
- Start with one folder of notes about your projects and collaborators, then add to it over time.
- Turn a recurring task you dislike into a plain-English skill, correct its mistakes, and schedule it to run.
- After each agent task, capture what worked as a reusable skill instead of discarding the context.
- Keep personal skills and memory in a repository you control so your accumulated judgment can travel with you.
- Track where facts came from, check contradictions, and prune stale information to keep an agent’s memory reliable.
Mentioned in this talk
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What was claimed 12
- built
“I've been building mine in the open.”
13:28inEvery company should have a BrainYouTube Verified5 sources· Talk, Web· archived
- role atGarry Tan is runs Y Combinator full-time at
Y Combinator
“I'm Garry, president and CEO of Y Combinator.”
0:09inHow to Make Claude Code Your AI Engineering TeamYouTube Verified7 sources· Talk
- built
“In 2013, I was a YC partner building Bookface”
YouTube Unverified1 source· Talk
- metric
Y Combinator: A quarter of Winter 2025 batch companies had codebases that were 95% AI-generated
“a quarter of the companies had codebases that were 95% AI-generated”
YouTube Unverified1 source· Talk
- metricgbrain: About 220,000 Markdown pages
“about 220,000 Markdown pages”
YouTube Unverified1 source· Talk
- featuregbrain: Personal knowledge library and agent system
“the library plus the librarian”
YouTube Unverified1 source· Talk
- uses
“My personal OpenClaw has a Karpathy-style knowledge wiki”
YouTube Unverified1 source· Talk
- metricgstack: 123,000 GitHub stars
“with 123,000 stars now”
YouTube Unverified1 source· Talk








