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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#143

How I use Claude Code artifacts to understand what I delegate

Fable doesn't need you to spell out the how, but you can only give it the what if you understand the surface. My fix: a visual artifact I sculpt, version after version, until what remains is exactly what I understand. The artifact-design skill is the chisel.

#142

Claude's Chrome extension vs Chrome DevTools MCP: which one you actually need (I use both)

Claude for Chrome, Claude in Chrome, the extension, Chrome DevTools MCP... I kept mixing them up while using one of them daily. They're two different tools, and picking wrong means missing the half only the other one can do.

#141

Which Claude Code plan you actually need: Pro, Max, or API (after using them all)

I've been through every individual Claude Code plan. The takeaway isn't "buy the biggest one": it's that if you use the tool well, Max is plenty. My criteria, not a price table.

#140

Describe your use case, Claude builds the MCP server

You've spent months connecting MCP servers with `claude mcp add`. What if the one you need doesn't exist? An official Anthropic plugin has Claude build it for you, start to finish, from your use case.

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