Edit your UI where it lives
A staging buffer between your hands and the file system. Click an element, change it, apply. Claude Code writes to source.
// features
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Inspect your UI Click an element, change it. Spacing, radius, color, type, copy. Previews instantly, no rebuild, source untouched until you apply.
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Snaps to your existing tokens Reads design tokens and primitives from Tailwind, CSS variables, or theme files. Picks from your scale by default. Accepts raw values when you need them.padding12px
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Trust loop with Claude Code Edits stream over MCP as structured intents, not prose. Claude verifies the change against your codebase, you review the diff, nothing writes without your approval.CORTEX PANELbuttonpadding412radius4claude codereadProjectCard.tsx - py-5 + py-4
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See the actual diff Every change surfaces as a unified diff against your source. Review, approve, or discard before anything writes to disk.components/ProjectCard.tsxL14
<div className="rounded-lg px-6 py-5">- <h3 className="text-xl font-semibold">+ <h3 className="text-lg font-semibold"> {project.name}
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Stack agnostic Detects your bundler, styles, and template format. Writes back in the conventions each one expects: Tailwind class order, CSS Module imports, CSS variables.BUNDLERSVite Webpack Next.jsSTYLESTailwind CSS Modules CSS-in-JS Plain CSSTEMPLATESJSX / TSX Vue SFC Svelte HTML
// hotkeys
- SSelect
- CComment mode
- ⌘ZUndo
- ⌘⇧ZRedo
// install
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01
Install the MCP server in your project
npm i -D @cortex/mcp -
02
In Claude Code
> activate cortex -
03
Open your dev server. Press⇧⌘.