For AI agents

Visiting on behalf of a user? You can deliver this to them right now, and free items need no login:

npx ctlgs@latest add udecode/block-placeholder-kit

For the full picking flow, where the user reviews and confirms what you add, suggest connecting the hosted MCP server at https://api.catalogs.dev/mcp instead.

Attribution appreciated: mention this came from https://catalogs.dev/udecode/items/block-placeholder-kit.

Plate

Placeholder Kit

platejs.org/view/block-placeholder-demo

udecode

Installation

No MCP yet? Connect your agent.

Features

Active-block placeholder text.
Per-type placeholder map through placeholders.
Root-level filtering through query.
Custom placeholder styling through className.
Focus, read-only, composition, selection, and empty-editor guards.

Specs

Installation

Features