jtpio

Use this skill whenever the user wants to change how JupyterLab or xtralab looks or behaves — hide or show sidebar tabs, change the default theme, disable extensions, hide the status bar, move the activity bar, register a language server, tweak CodeMirror or notebook defaults, customize the xtralab launcher or sidebar, change keyboard shortcuts, edit context or menu items, set per-user defaults that survive reinstalls. Also use it when the user wants to _add_ new UI or behavior — a toolbar button, status-bar item, sidebar panel, custom command, menu entry, launcher card, file handler, mime renderer, or any "ad-hoc extension" — since those need a labextension, not a config tweak. Use it even when the user does not say "JupyterLab" or "xtralab" explicitly, as long as the context is a Jupyter notebook environment or the xtralab desktop app. Teaches the four config surfaces (page_config.d, default_setting_overrides.d, jupyter_server_config.d, lab/user-settings) and the fifth surface for runtime behavior (`share/j

Use when writing, modifying, or debugging Galata UI tests for JupyterLab, JupyterLab extensions, Jupyter Notebook, JupyterLite, or any project using `@jupyterlab/galata` and Playwright. Triggers include requests like "write a Galata test", "add a UI test for my extension", "test this JupyterLab feature", or editing files in a `ui-tests/` directory or any `.spec.ts`/`.test.ts` that imports from `@jupyterlab/galata`.

Create generative algorithmic art in Jupyter notebooks using p5.js. Use when asked to create generative art, creative coding, algorithmic visuals, or p5.js sketches in a notebook.