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base-ui-migrator

Migrates React UI code to Base UI (`@base-ui/react`) — replacing bespoke modals, custom dropdowns, raw `<dialog>`/`<select>` elements, ad-hoc popovers/menus/tooltips, or other component libraries (Radix UI, Headless UI, Reach UI). Ships a 37-component catalog (snapshotted from base-ui.com/llms.txt) and scripts to refresh it, scan for migration candidates, and verify the migration compiles. Triggers on phrases like "migrate to base-ui", "use base-ui instead of X", "replace this dialog/popover/menu with base-ui", or when scanning a React codebase for components Base UI can replace. Trigger even if the user only mentions one component (e.g., "swap this modal for base-ui dialog") — the workflow scales from one file to a whole repo.

skills/.experimental/base-ui-migrator/SKILL.md

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Aug 15, 2026
License
MIT

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# Base UI Migrator

Automated workflow that converts bespoke React UI primitives and other component libraries to [Base UI](https://base-ui.com) (`@base-ui/react`).

Base UI is the unstyled successor to Radix UI, maintained by the Material UI team and Radix authors. It exposes the same composition model (`Root` + parts) but with a single canonical API, modern data attributes for state styling, and built-in transitions. This skill knows the full catalog (37 components, snapshotted) and how to map common bespoke patterns to it.

## When to Apply

Use this skill when:

- The user explicitly asks to migrate to Base UI, or to a specific Base UI component.
- You spot a React file with bespoke overlays — manual modals, dropdown menus built from `useState` + click-outside hooks, floating UI compositions — that have a Base UI equivalent.
- The codebase uses Radix UI, Headless UI, Reach UI, or react-aria components — these are 1:1 mappable to Base UI.
- The user wants to consolidate a fragmented set of UI primitives behind one library.
- The user wants to scan a directory for migration opportunities.