steerdev blog

notes from teams shipping with agents.

essays, postmortems and pattern notes from the steerdev pod. spec-driven, agent-agnostic, evidence-based, written by the engineers actually doing the work.

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showing 6 of 6 posts
methodology·Mar 5, 2026·10 min read

The Spec Is the Product: Why Machine-Readable Specs Are the Missing Layer in AI Development

Give three agents the same vague ticket and you get three different implementations, all "correct," none of them what you wanted. The agent did not fail. The input failed. In the agent era, the spec is no longer a memo between humans. It is the primary input to a production system, and it needs to be engineered like one.

Leonardo Piñeyro
methodology·Mar 19, 2026·12 min read

Building Fast Is Not Enough. But Neither Is "Alignment." You Need Both.

8090 just published a thoughtful four-part series arguing that speed without alignment builds the wrong thing. They are right. But alignment without speed is just waterfall with better vocabulary. The real question is how you get both at once, and what kind of infrastructure makes that possible.

Leonardo Piñeyro
methodology·Feb 5, 2026·6 min read

The Great Inversion: When Judgment Becomes the Bottleneck

For forty years, writing the code was the bottleneck. With capable agents in the loop, that share is shrinking, and a different cost is rising in its place. Here is what the new shape looks like on a real codebase, and what it does to the engineers around it.

Leonardo Piñeyro
industry·Feb 19, 2026·10 min read

Your Team Doesn't Have an Agent Problem. It Has a Coordination Problem.

Monday morning, five engineers each spin up two or three coding agents. By Wednesday, three pull requests collide, two agents have rewritten the same module, and nobody can trace which spec drove what. The agents aren't broken. The team coordination layer is missing.

Leonardo Piñeyro
industry·Apr 2, 2026·8 min read

Agent-Agnostic Is the Only Sane Default (and Here's the Data to Prove It)

In the last eight weeks the agent landscape has shifted three times. Opus 4.7 became the default across four platforms, Cognition shipped SWE-1.6 for free, OpenAI launched GPT-5.5, and Warp added three open-weight models in a single release. If your team standardized on one agent two months ago, your choice is already outdated.

Leonardo Piñeyro
case study·Apr 16, 2026·12 min read

How We're Replacing Our ERP With AI Agents (and What We Learned About Eating Our Own Dog Food)

Every growing company has the same mess: invoices in a spreadsheet, projects scattered across three tools, allocation by tribal memory. We could have bought another SaaS. Instead we used Steerdev to build our own. Here is what worked, what broke, and what it taught us about our own product.

Leonardo Piñeyro