Format & Editor System

Loop isn’t just a text editor — it’s a semantic content platform. Every file you create carries rich metadata: variables that resolve to real values, mentions that link to people and documents, sections that compile directly into AI prompts, and format-aware viewers that render PDFs, spreadsheets, images, and more without leaving the app.

This article explains how all of these pieces fit together.

Quick Start

• Create a file — Open Documents and use the New menu. The Write tab opens the rich editor, and the other tabs bring in a web page, an