I built my own AI chief of staff at 20. Here's what it does
My week looks like this: Monday to Friday I study Digital Business at La Salle in Barcelona. Saturday and Sunday I start at a bakery at 6:30 in the morning. In between, I co-run a consulting club and a startup. Something had to give, and I didn't want it to be sleep or grades.
So I built Jarvis, my own AI chief of staff.
What Jarvis actually does
It briefs me every morning. At 7:00 a message lands on Telegram: two news items per sector I follow, global and local, plus a draft LinkedIn post. It runs on GitHub Actions, so it costs nothing and doesn't need my laptop on.
It runs my task list. Everything lives in ClickUp. Jarvis reviews it, reprioritises what's stale, archives what's done and reminds me of university deadlines every evening.
It researches for me. One command takes the open questions from my week, researches each one against official sources and writes the findings into my notes. It's how I learned the actual rules on financial content in Spain before writing a line about it.
It remembers. Every decision, preference and project lives in plain Markdown files and an Obsidian vault. Each conversation starts with context instead of from zero.
How it's built
The brain is Claude Code, Anthropic's coding agent. Around it: the ClickUp, Gmail and Calendar connectors, a Telegram bot, and a set of "skills", reusable instructions for jobs I do often, from organising university work to scripting short videos. No servers, no monthly bill beyond the AI subscription.
Three things I learned
- Automate a boring workflow first. The morning briefing was the first thing I built, and it's still the one I use most.
- Write the rules down. Every time Jarvis got something wrong, I turned the correction into a written rule. That's what makes it feel like it knows me.
- Keep secrets in one place. Early on an API key ended up in a document. Now every credential lives in a single private file and nothing else is allowed to contain one.
The interesting part isn't the tech. It's that a 20-year-old with a weekend job can now operate like someone with an assistant. That gap between people who use these tools and people who don't is going to get very big, very fast.
What's the first thing you would hand over to an AI assistant?
Ferran Teixidor Rubio is a Digital Business student at La Salle Campus Barcelona, co-founder of La Salle Consulting Association and Paythra, and builds AI systems for small teams. More about me.