Specialized inputs

Format Check

A phone field with format validation as you type: the border and status line change colour while the line above the field always names the expected mask for the selected country.

React + Tailwind, shadcn-compatible: press “Copy for AI” and your Cursor or Claude Code agent installs it with the shadcn CLI.

What you can change

  • the countries array — the code, flag, name and mask for each country
  • label — the field caption
  • the accent through the accent prop

A link for your AI agent: preview, code and instructions.

Preview

1440pxHost theme
Format Check — A phone field with format validation as you type: the border and status line change colour while the line above the field always names the expected mask for the selected country.

Use it with AI

  1. 1. Copy the link.
  2. 2. Write to your agent in your own words and drop the link into the sentence.
  3. 3. The agent opens the link and installs the component from the registry.
AI
1Pick it here

put this on the home page as the hero:

https://vibeui.club/c/phoneinput-008?lang=en&theme=dark

2Paste into the chat
3Get it in your project

Not sure where to paste it? Step-by-step guide

Show the full instructions

What the link says, spelled out. Use it when your agent cannot open links — paste this text instead.

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How to use

<Phoneinput008
  label="Phone"
  countries={[{ flag: "🇬🇧", code: "+44", name: "United Kingdom", mask: "#### ######" }]}
/>

A sample call. The agent installs the component itself from the registry via the “Copy for AI” link.

Settings

Label
label · default: Phone
Format line
hint · default: Expected format: {code} {mask}
Accent
accent · default: theme colour
Background
background · default: theme colour

FAQ

How do I add Format Check with Cursor or Claude Code?
Press “Copy for AI” on this page and paste it into your agent's chat. The instruction contains the shadcn CLI install command, the dependencies and what to keep, so the agent installs this exact component instead of recreating a lookalike.
What does Format Check depend on?
No npm packages beyond React and Tailwind CSS.
What can I change in Format Check?
Adapt: the countries array — the code, flag, name and mask for each country; label — the field caption; the accent through the accent prop. Keep as installed: the local --vibeui-phoneinput-008-* palette — do not swap it for your theme tokens; two separate lines: the static mask hint and the live validation status — they are different messages; aria-live="polite" on the status line: the validation result has to be heard as you type.
Is Format Check free?
Yes. The preview is open without an account; with a free account you can copy up to 20 components a month.

For developers

npx shadcn@latest add https://vibeui.club/r/pro/phoneinput-008.json

This command needs a signed link: sign in and open “Component source” below — it issues a working link valid for 30 minutes. All install options

Technical notes

The component is self-contained: one file, zero dependencies, the palette in the local --vibeui-phoneinput-008-* variables. Client component: the country and the digits are in state. The mask hint and the format check are two different messages: the line above the field is static and names the expected shape of the number for the country, while the line under the field is live and, through aria-live, compares the number of typed digits with the expected one. The number is typed as raw digits with no auto-formatting, so that the check is not confused with mask substitution.

Tags

  • phone
  • input
  • validation
  • mask
Component source

The same file your agent installs. Here in case you would rather copy it by hand.

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