Visual indicator card for displaying key metrics. The `Indicator` class renders a compact, styled card that displays a value, an optiona

Chat container that displays Message widgets and auto-scrolls to the most recent message. The Chat widget manages a vertical list of Mes

A single chat message widget with avatar and rich content rendering. The `Message` widget renders: - an avatar (emoji inside a styled co

Trait that accepts tabular data and converts it into a JSON-safe list of dicts. Accepted input types: - pandas.DataFrame - polars.Data

Text input widget for chat-style applications. The `ChatInputWidget` provides: - a multiline text input - a send button - option

Column output widget.

Custom HBox that carries `position` info for Mercury layout (sidebar / inline / bottom), similar to other widgets.

Wraps an existing ContentsManager and redirects all paths under shadow prefixes to an in-memory store. All other paths are delegated to t

Output widget that contributes its layout slot to the Mercury render context.

Markdown widget rendered as an ipywidgets.HTML, with Mercury 'position' support (inline / sidebar / bottom). Because this is a real ipyw

Simple controller for the Progress widget.

Tiny anywidget that runs front-end JS to scroll to the last chat message. It looks for elements with the message CSS class (MSG_CSS_CLASS) a

Internal exception used to stop notebook execution without displaying a traceback or error message.

Tab output widget.

Very small in-memory store for shadow notebooks (path -> model).

Strongly-typed Mercury output payload

* Minimal page-config structure we actually consume.

Render the Mercury app with per-window isolated sessions via shadow notebooks.

API endpoint to return list of notebooks discovered on disk.