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I Run My Second Brain on Four AI CLIs
Claude Code, Codex, Gemini, OpenCode. One codebase, the same 45 commands. Your AI knowledge setup should not be hostage to one company's tool.
Jun 23
•
Eugeniu Ghelbur
2
2
2
AI Agent Loops Decoded: What's Real, What's Hype
I ran a 112-agent research swarm to fact-check the viral "300 agents" thread. Here's the pattern that's real, the numbers that aren't, and how to build…
Jun 19
•
Eugeniu Ghelbur
1
2
How to Build a Folder-Native AI Agent
AI memory and AI work are both just folders of markdown. Here's how to wire them into one agent.
Jun 16
•
Eugeniu Ghelbur
2
2
Karpathy's LLM Wiki v2: What to Keep, What to Skip
I rebuilt it, ran it daily for months, and most of the v2 hype is overkill.
Jun 9
•
Eugeniu Ghelbur
4
5
2
HUGE update on obsidian-second-brain: The Architect
My open-source AI second brain now documents your code, not just your ideas. Here's the whole update, and why it changes how the thing works.
Jun 2
•
Eugeniu Ghelbur
2
2
2
May 2026
I built 30+ AI shortcuts for my own work. Three save me three hours every day.
Three of them quietly took three hours off every workday. Here are the three.
May 26
•
Eugeniu Ghelbur
2
3
I built the primitive. Glean is the wrong wedge.
Glean is a $7.2B bet you can search your way out of a messy corpus. I think the wedge is the opposite. Here is the primitive I shipped.
May 19
•
Eugeniu Ghelbur
1
The Economist 2026 Cover Decoded: Every Symbol Explained
Decoding the AI race, surveillance state, and hidden geopolitical symbols in The Economist's 2026 cover.
May 11
•
Eugeniu Ghelbur
I built this for myself. Then 1,374 strangers cloned it.
Two tools you already use don't talk to each other. Here's what happens when you make them.
May 10
•
Eugeniu Ghelbur
20
7
April 2026
I rebuilt Karpathy's LLM Wiki. Here's what's missing from the original.
Looking for Karpathy's original LLM Wiki gist? It's in here. Plus the five things a working second brain does that the original doesn't, shipped as 34…
Apr 29
•
Eugeniu Ghelbur
48
4
12
Your notes are a graveyard. Here's how to bring them back to life.
A new command that reviews your hard-won lessons and promotes them into permanent rules.
Apr 25
•
Eugeniu Ghelbur
1
1
I built a tool that lets my Obsidian vault argue with me.
Obsidian Second Brain
Apr 5
•
Eugeniu Ghelbur
1
2
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