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LLM knowledge base hygiene

April 2, 2026Andrej Karpathy, elvis, kepano

Karpathy promotes LLM-built personal knowledge bases, while elvis and kepano extend the idea by using Obsidian vaults and separating clean personal notes from messy agent work to reduce contamination risk.

using LLMs to build personal knowledge bases
Building a personal knowledge base for my agents is increasingly where I spend my time these days.
Like @karpathy, I also use Obsidian for my MD vaults.
Keep your personal vault clean and create a messy vault for your agents.
Keeping a separation
LLM Knowledge Bases
using LLMs to build personal knowledge bases for various topics of research interest
a large fraction of my recent token throughput is going less into manipulating code, and more into manipulating
Andrej Karpathy
elvis
kepano
workflowobsidianagents

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