Pedro Sousa
Português

Blog

Reflections on engineering, AI and product.

9 articles

Featured

How I work with AI: I don't ask for code, I configure the environment the AI works in

I believe the real gain with AI didn't come from better prompts, it came from changing the question. Instead of asking for code, I engineer the environment, the harness, where the agent works within my standards.

AIClaudeMobile DevelopmentiOSDeveloper ProductivitySoftware ArchitectureAI AgentsMCP
Jun 24, 2026
Read article ›

More articles

Jul 19, 2026

RAG didn't fail because of search. It failed because of the context you didn't give the model.

Most RAG problems in production aren't about document retrieval. They're about poorly constructed context passed to the model. This article explains why the pipeline works in testing and breaks in the real world, and what I would change today.

Read article ›
Jul 12, 2026

Flutter solves the wrong problem when you already have a working Kotlin app

The decision to go cross-platform is almost always made before anyone understands what problem is actually being solved. I've worked on both sides of that decision, and the mistake I kept seeing wasn't technical. It was a misdiagnosis.

Read article ›
Jul 05, 2026

The abstraction you created to simplify things will be your next maintenance problem

Every abstraction is born from good intentions. The problem is that it ages without warning, and by the time you notice, it's already spread across ten places you no longer control. That's the cost nobody puts in the PR.

Read article ›
Jun 28, 2026

The agent that worked in testing and broke in production

Building an AI agent that works in a demo is straightforward. The problem shows up when real context arrives: noisy data, long sessions, ambiguous states. Most teams find that out after deploy.

Read article ›
Jun 21, 2026

Working abroad doesn't make you senior. Context does.

I went to work at a software factory in France thinking the geographical leap would change my technical trajectory. It did, but not in the way I expected. What actually happened was slower, more uncomfortable, and more useful than anything I could have planned for.

Read article ›
Jun 13, 2026

SwiftUI Preview as an Architecture Sensor

When a Preview starts demanding acrobatics just to work, the problem is rarely the Preview. The problem is the architecture. I learned that the hard way, trying to fix the symptom instead of the cause.

Read article ›
Jun 11, 2026

The pattern you won't refactor because it's working

Bad technical decisions rarely blow up. They just stay. This article is about the kind of code that survives not because it's good, but because it works just enough to never become a priority.

Read article ›
Jun 07, 2026

The module that knows too much is not a module. It's a monolith with extra files.

Modularizing a project without modularizing the thinking creates an illusion of isolation. The practical result is a monolith distributed across folders, with invisible coupling and increasingly slow builds.

Read article ›