Zeke Sikelianos

Sikelianos joined Cloudflare’s developer-relations team as a principal engineer in December 2025. Earlier, he was Replicate’s founding designer, working on its model playground, API, SDKs and documentation. At GitHub he worked on Electron and helped establish the documentation-engineering team. He also worked at npm, Heroku and Wordnik, where he co-created Swagger and Swagger UI. His CV records study at the University of New Mexico and Santa Barbara City College.[1]

A design system an agent can apply

Swiss Design Skill expresses a visual system through instructions, tokens and Tailwind component patterns. It specifies typography, a 12-column grid, restrained color and spacing rules. The purpose is to give an agent concrete design constraints rather than a vague request to make a page attractive. The repository includes installation and prompting examples for applying the system to an existing interface.[3]

Learn an agent by using it

OpenCode School turns reference concepts into an interactive course. After installation, a learner copies a lesson prompt into OpenCode; the agent works through the material, asks questions and records completion. Lessons cover permissions, models, instructions, tools and workspaces before hands-on exercises. The approach introduces the execution environment alongside the model, giving newcomers a guided path through concepts that are otherwise scattered across documentation.[4]