Juan Andrés Núñez.

Senior Frontend Engineer specializing in Agentic AI, professional educator and speaker. Where engineering meets humanism.

Juan Andrés Núñez
Focusing on

Building FrontendLeap: teaching how to build the professional Web with GenAI and learning science.

Helping companies and teams go AI First on the Claude platform.

Claude Code

✦ New tips daily

Claude Code: from zero to professional. Tips, tutorials and deep dive guides from an engineer who uses it 12 hours a day.

Explore the tips →
Claude Code Tips View all →
#251

Claude Code watermark: it's already in what it writes, and costs no tokens

Claude's watermark is already in the text Claude Code writes on current models, with no extra tokens and no price change. Where it lands (little in code, more in commits, PRs and docs) and what doesn't remove it.

#250

Run multiple Claude Code sessions in Desktop: Claude tells you which did what

Multiple Claude Code sessions open and no idea which one is doing what. Desktop puts two side by side with Option+click, pops others into their own window, and lets Claude tell you which one did what.

#249

"Received a CI event" in Claude Code: it's Auto-fix pushing to your PR

"Received a CI event" in Claude Code Desktop comes from your own Auto-fix: the app watches your PR's CI and reviews and wakes the session so Claude fixes and pushes to that branch. What it authorizes, what it doesn't, and how to stop it.

#248

Claude Code keeps stopping to ask: give it an example of finished work

Claude makes a couple of changes and stops to ask, and asking for bigger steps doesn't fix it. On the same migration, handing it the way a similar job was finished took it from zero tests and zero commits to doing all of it without a question.

Gravitas

Get only what matters

If I have nothing worth saying, you won't hear from me. When I do, you'll be the first to know. 7,000+ people already trust this.

Are you a professional Web developer?
No

Unsubscribe at any time.