What problem does it solve? Users often want a small interactive tool — a translator, flashcard drill, survey previewer, or rewriting helper — without setting up a development environment. This Skill lets the AI create or modify a complete working app as one self-contained HTML file that runs inside MimiWork. ## Core Features & Use Cases - App creation: Generates a single index.html (under 100 KB) with inputs, a primary button, a result area, and a working state, saved via the create_app tool. - Sandboxed bridge APIs: Uses Mimi.ask for model calls, Mimi.state for persisted settings, Mimi.saveFile for exporting files to Downloads, and Mimi.openLink for opening URLs in the user's browser. - App updates: Applies targeted changes to an existing app via update_app while preserving everything else. - Use Case: A user asks for "a little app that rewrites my emails in a formal tone" — the Skill produces a form with a text area, a rewrite button wired to Mimi.ask, suggestion chips, and a saved result area. ## Quick Start Ask Mimi to build an app, for example: "Create an app that translates text between English and French with a text box and a translate button."