Attach PDF files to agent messages
Agents can read PDF documents sent with a message.
In the UI: the chat composer offers PDF attachments when the selected model accepts PDF input, and shows each attachment as a file chip.
In the API: upload a PDF with POST /v1/files (PDF only, up to 32 MB), then
reference it as a file content part in the message. GET /v1/files,
GET /v1/files/{id} and DELETE manage stored files. Everruns converts the
attachment for each provider, including Anthropic documents, Gemini inline data,
Bedrock documents and OpenAI file inputs.