Demo Files — Multimodal Demo

This directory bundles sample files referenced by the /demos/multimodal page.

Required files (must be committed as binaries; see .gitattributes at repo root):

• sample.png — a small (< 50 KB) PNG that the "Try with sample image" button injects into the chat. A CopilotKit logo or other recognizable brand mark works well so the vision-capable agent has something to describe.
• sample.pdf — a small (< 50 KB) one-page PDF that the "Try with sample PDF" button injects. The content must mention "CopilotKit" so E2E soft assertions hold (e.g. a one-page export of the CopilotKit quickstart).

The page at src/app/demos/multimodal/page.tsx fetches these via the public path (/demo-files/sample.png, /demo-files/sample.pdf), wraps the fetched blob in a File, and routes it through the same AttachmentsConfig.onUpload callback the paperclip button uses — so the sample path exercises the exact same queueing code as a real user upload.

If these files are missing, the demo page still renders but the sample buttons will surface a fetch error. The paperclip / drag-and-drop paths continue to work without them.