Prompt Area designed for AI Chat UIs

Source: Dev.to

Introduction

The text input is the most‑used element in any chat UI, yet it’s often an afterthought—either a plain “ or a bloated editor. There’s a gap between “too simple” and “too complex”.

Existing solutions

• react‑mentions – only handles mentions, no commands/tags/markdown
• Tiptap – full ProseMirror editor, massive bundle, document‑editing paradigm
• Lexical – Meta’s framework, powerful but complex plugin system
• Plate – built on Slate, heavy, designed for Notion‑style editors

None of these were designed for prompt inputs.

PromptArea Component

A React component built specifically for AI chat UIs:

• Ships as a shadcn registry component (one‑command install)
• Zero extra dependencies

Usage

const triggers = [
  mentionTrigger({ onSearch: searchUsers }),
  commandTrigger({ onSearch: searchCommands }),
  hashtagTrigger({ onResolve: resolveTag }),
];

Features

• Live preview of bold, italic, URLs
• No toolbar, no mode switching
• Drag‑and‑drop, paste support with thumbnail previews
• Segment‑based document model
• Pure engine (prompt-area-engine.ts) – testable without DOM
• contentEditable with decoration layer
• Debounced undo/redo snapshots

Installation

npx shadcn@latest add https://prompt-area.com/r/prompt-area.json

Feature Matrix

A comparison against seven alternatives highlights PromptArea’s focused feature set for AI chat prompts.

Contributing

We invite readers to contribute. See the GitHub issues for planned features and to submit ideas.

Demo

Explore a live demo:

Links

• GitHub: