Engineering

Why every agent starts as a written spec

Before any code, one page that says what the agent does, what it must never do and how we will know it works.

September 17, 2026By Alexandre Collet and JB Collet

An agent without a spec is a demo. With one, it is something a team can review, test and trust.

Our specs are one page: the task, its inputs and outputs, the cases it must refuse, and the checks that tell us it is working.

The spec is also how a team takes the agent over when we hand it back.

What it takes for an agent to change a schematic, run ERC and DRC, and explain what it did.

Agents that work on native engineering files and checks, discipline by discipline, with engineers making every decision.

Interviews, shadowing and one spreadsheet: the method behind every engagement we start.

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