My work on spec-driven development with Claude Code was selected for Sinch’s monthly AI Champions showcase, representing one of five chapters across the company.


Really, a career milestone!
I used Claude Code to help build a new component for our design system. The approach was to write a plain-language prescriptive spec before touching any code. It covered behavior constraints, design tokens, implementation checklist, and then explicit instructions to follow existing codebase conventions rather than invent new patterns.
Result – a design system component generated in ~30 minutes, with another 30 minutes of fixes. MR review comments were about missed requirements, not code style. That’s a meaningful shift in where human attention goes during review.
Next Steps – formalizing the skills generalized from this task and looking into sharing them with the wider community.
The bigger takeaway so far: the quality ceiling for AI-assisted engineering is set by the spec, not the model. Prescriptive plain-language constraints dramatically outperform ad-hoc prompting.


