proof
A product design skill with best practices built in.
Proof designs your product's website pages, from landing to pricing to blog. Every pattern comes from 400+ real product pages, studied through Mobbin. The first draft looks shipped; you adjust it in minutes.
Three steps. Then design any page.
Install it once, then ask for a page type, a style, and a theme. Works in Claude Code and Codex.
/plugin marketplace add senlindesign/proof/plugin install proof@proof/proof:proof landing business darkgit clone https://github.com/senlindesign/proof.gitcp -R proof/skills/proof ~/.claude/skills//proof landing business darkgit clone https://github.com/senlindesign/proof.gitcp -R proof/skills/proof ~/.codex/skills/Use the proof skill: landing page, business style, darkOne brief. Four pages that feel nothing alike.
The same request (Relay, a shared inbox for support teams) in each style. Each style has its own hero, its own layout habits, and its own texture, not just its own colors.
Every card opens the full page, live. Scroll it, hover, click around.
From a one-line brief to full control.
All eight page types across the four styles, light and dark. Give one sentence and the skill infers the rest, or set the archetype, sections, brand color, and font yourself.
Need one section? Ask for just that.
Ten of the section types, cut from the pages above. Each can be generated on its own, for example /proof faq business.
Ship the first draft.
Free, open source, and ready in your agent in under a minute.