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.
Claude Code

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

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#129

Free up context in Claude Code without losing what matters

Your session crosses 50% context and `/compact` summarizes all of it, including the fix you just landed. There's a way to compress only the exploratory past and keep the recent work in full detail.

#128

Concentric circles: the method for keeping up when Claude touches half the repo

A big or unfamiliar change is hard to grasp reading it in silence. A method to get to the bottom: dictate your review to Claude and narrow the circle, pass by pass.

#127

The habit that keeps you from losing the thread in Claude Code

On long tasks it's easy to lose track of what's done and what's left. Ask Claude Code for a task list: you see it with Ctrl+T and it survives /compact.

#126

Claude Code plugins: the dead weight riding every message

Every active plugin weighs on your context on every message, used or not. Since v2.1.187, Claude Code tells you which ones you installed and no longer touch, so you can prune them.

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