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How I gave Claude Code memory without a vector DB
A small hook injects at most 4 notes from my Obsidian vault into every prompt. No embeddings, no database, and it knows when to stay silent.
Jul 18
•
Eugeniu Ghelbur
3
2
I built an AI tutor that fits on one screen
doceo is an open-source AI tutor built as a Claude Code skill. It turns any topic, file, or URL into a one-screen visual lesson, calibrated to what you…
Jul 7
•
Eugeniu Ghelbur
3
2
1
The CLAUDE.md behind a tool 3,000 developers use
This one file is the difference between an AI you can trust to run real work and one you babysit line by line. Here is my actual file, what I deleted…
Jul 4
•
Eugeniu Ghelbur
3
4
June 2026
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
3
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
2
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
4
4
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
7
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
8
2
3
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
4
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
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
21
7
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