Full Product Stack: What Developers Do When Agents Write the Code

About this masterclass

With agents, a developer can research, prototype and build a feature largely alone, work that used to pass through product, design and engineering. Writing code gets cheaper. Knowing which problem to solve, and when a feature is good enough, stays hard. That is product work, and this masterclass teaches it to developers.

What you work on

On a sample product we bring, you take one idea through the product work an agent cannot do for you:

• Frame the problem as an impact hypothesis: who has it, and what changes once it is solved
• Research users and market with agents, and learn where that research stops being valid
• Prototype two or three options and estimate what each one costs
• Turn the chosen option into a spec an agent can build from, with edge cases and acceptance criteria
• Decide what ships, and how you will know whether it worked
• Draw the line between the product decisions you take alone and the ones that stay with your product team

Each step starts with a short demo; then you work it with your own agent.

Who it is for

Developers, full-stack or not, who want to own more than the code, and tech leads who want their engineers closer to the product. No product management experience needed.

After the masterclass you have:

• An impact hypothesis, prototypes and a spec for one feature
• A product context file your agents work from: users, goals and constraints

Your tutor

Benedikt Stemmildt co-founded hackers&wizards, where he trains engineering and product teams to work with agents. Before that he was engineer, architect and CIO at OTTO, Breuninger and BLUME2000.

Bring a laptop and the coding agent you use: Claude Code, Codex, GitHub Copilot, Gemini CLI or Cursor.