CopilotKit

Governs how the OpenBot browser app reads and writes server data — every request goes through `client` in app/src/lib/client.ts, every read is a queryOptions factory in app/src/lib/<entity>/queries.ts, every write is a mutationOptions factory in app/src/lib/<entity>/mutations.ts, and components consume them through useQuery/useMutation. Use when adding or changing a screen that loads server data, calling a /api/... endpoint from the browser, adding a query key, writing a create/update/delete flow, deciding where a fetch belongs, or reviewing a diff that contains the word fetch under app/src. Don't use for server-side route handlers under server/ (that is not browser code), for form validation schemas (those live in lib/<entity>/form.ts), for page layout and Item rows, or for the AG-UI stream itself, which the runtime carries rather than the client.

The default layout for every OpenBot configuration screen — PageShell and its prose/wide widths, PageSection and PageRows, Item row composition, the settings-row pattern where a summary and a chevron open a dialog, and the size and variant vocabulary. This is what a new screen looks like unless an instruction says otherwise. Use when adding or changing a screen under app/src/routes, adding a row to an admin or settings page, choosing a Button or Item size, picking between a bordered and a filled row, laying out a dialog, or reviewing a diff that adds max-w-*, a hand-drawn card, or a new spacing scale under app/src. Don't use for where the data comes from (that is openbot-data-access), for the gallery components under components/gallery that a Bot draws, for the chat and channel surfaces, or for editing the primitives under components/ui themselves.