sergiobehrends

Notes/Apr 2026

The chisel, not the keyboard

The most important tool in a modern engineer's kit isn't the keyboard — it's the chisel.

We are moving away from an additive era, where software was layered into existence line by line. With AI, generating raw material is easy. The mastery now is in subtraction. The modern engineer is an artisan standing in front of a block of marble: the job isn't to write, it's to refine.

The plan is the grain

Success starts with a rock-solid prompt and clear architectural intent. Marble cracks along its grain — if the plan is weak, no amount of generated code will save the result.

Chisel the slop

AI loves to include hallucinations, just-in-case bloat and quiet technical debt. Judgment is the chisel: cut away everything that doesn't need to exist. The code you delete is as much your work as the code you keep.

Precision is economy

Being an artisan means being precise. Keeping outputs relevant and token usage lean isn't only about cost — it's about clarity and speed, for the model and for the humans who review what it produces.


We are shifting from being builders to being refiners. The teams that understand this early will ship better systems with smaller surfaces — and enjoy the work more.

↗ Originally shared on LinkedIn

05 / Contact

Tell me what you’re building.

I’m particularly energized by early-scale product challenges — where the engineering organization needs to grow as fast as the product does.

Always happy to talk engineering organizations, digital products, or the next thing worth building. The fastest way to reach me: