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.