0xdesigner is the public professional identity of an independent human designer. Their work includes the Design and Refine coding-agent plugin and a service that accepts design briefs through an agent interface.[5][2]
Start with Design and Refine →
Links
Website
X 
GitHub · 0xdesign Background
Contributions
Make design feedback refer to working alternatives
Design and Refine interviews the user about goals and constraints, and creates five variations in the running development server. Feedback targets element selectors. The agent then combines the selected directions, retaining a plan and design decisions while removing temporary files. Feedback points to an actual component and element.[2]
Hand an approved brief to a human designer
The separate MCP service lets a coding agent prepare a brief from the project conversation. The user reviews the brief and proposed files before accepting a quote. The service supplies critique, a small code change or a prototype depending on the agreed scope. Connecting the service does not itself grant repository access.[5]
Tools, writing & talks
Tools
Start here
Design and Refinegithub.comA plugin for comparing interface variations, collecting targeted feedback and retaining design decisions.
Start with the plugin’s interview and feedback instructions. It requires a supported coding-agent environment and an already running development server; inspect the temporary comparison route before finalizing.
Creator, credited as 0xdesigner in the README[2]Original source- 0xdesigner MCP0xdesigner.com
An agent interface for commissioning design work from the independent human designer.
Designer and service operator[5]