Code agents in 2026
A practical guide to getting the most out of Claude Code, from prompting techniques to leveraging subagents for cleaner context.
Alex Oliveira
Software, Systems and Thinking.
Latest posts
Five Days on the Kumano Kodo
I walked the mountains in Japan for five days seeking a reset I couldn't define. Between the cedar shade and quiet villages, through ancient stairs, torii gates and shrines, I found what I was looking for.
Problem-solving template
Template document for synthesizing problems, solutions and proposals.
My universal coding prompt (Claude Code, Cursor and others)
This universal prompt for Claude Code has greatly improved my AI usage for coding tasks.
The Space Between Yes and No
Questions shape our perception. Good ones explore the often overlooked realm of uncertainty, challenging us to think beyond binary choices and embracing the complex nuances shaping our world.
What does bang methods mean in Ruby?
It might not mean what you think it means.
Remove Distractions From Websites
Apply arbitrary CSS to remove websites sections.
Visto Japonês como Brasileiro
Dicas para tirar o visto.
Meditation
How I meditate, what I feel, how better my life is with it.
Generate CSV from Rails console (Heroku)
Extract data out of Rails console into a CSV.
Roadmap for One-on-One’s
A template for new one-on-ones.
Blogging Manifesto
I've always been dissatisfied with blogging. Now I have an objective measure of what makes it pleasing.
Jekyll Blogging with Obsidian
Follow this step-by-step guide to setup Obsidian so you can post to Jekyll seamlessly.
Derisk
If I had to point out one skill that differentiates great makers, professionals and executives I worked with, it would be _deliberate derisking_. Everybody does it to some extent, but rarely as a constant discipline. It drives success and, once in motion, molds thinking and triggers valuable practices in all areas of life.
Software Complexity: Naming
Code is written once but read many times. Good writing is, therefore, about optimizing for ease of reading.
A Fractal of Black Boxes
On the beauty of complex things that look simple and easy, and how to use Progressive Compartment to simplify maintenance and innovation at work and in life.
Physics of Software
A look at physics and the Constructal Law as inspiration on how to control complexity in software systems.