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Changelog

Source: NEWS.md

shinygenui (development version)

Chat integration

  • Require shinychat >= 0.5.0 and delegate streaming, cancellation, and attachments to chat_server(). Conversation history stays disabled until it can restore the canvas and registry together. The package no longer directly imports {promises} (#21).
  • Greetings now use the shinychat welcome message API and disappear after the first user message. They remain display only and are not sent to the model (#21).
  • Use shinychat::tool_result_display() for tool results and present tense titles for running tools. The mtcars example uses the input toolbar to keep its prompt buttons above the composer (#21).

Dependencies

  • Require ellmer >= 0.4.1 for stream_controller(), which powers chat cancellation (#17).

Branding

  • Add a hex sticker logo with a p5.brush watercolor polygon background (#14).

Examples

  • Example and acceptance test apps now read their model and reasoning effort from the required SHINYGENUI_MODEL and SHINYGENUI_EFFORT environment variables instead of relying on defaults (#9).
  • The 01-mtcars-explorer example now offers prompt buttons above the chat composer. A click fills and focuses the composer without submitting (#10).

Documentation

  • The README now includes a recording of the mtcars explorer example (#11).
  • Code examples now consistently use the same model provider while continuing to support any ellmer provider (#8).

shinygenui 0.1.0

CRAN release: 2026-09-09

New features

  • Use genui_component() to define a component and genui_catalog() to collect components into a catalog. Each component becomes an ellmer tool with validated arguments.
  • Use genui_canvas() and genui_server() to let the model add components to a running app. The included tools let it update or remove a component, clear the canvas, and inspect the current canvas.
  • Every call from the model passes through genui_dispatch() before it can change the canvas. If a call fails, the model receives the error and the Shiny session keeps running.
  • genui_components_bslib() provides a value box, Markdown card, data table, scatter plot, and histogram with a slider for the number of bins. genui_card_row() provides a container for arranging these components.
  • genui_trace() records each successful call. genui_replay() can rebuild the canvas from that record without an LLM.