Prompt Studio: Image/document file uploads blocked due to missing ConfirmMultiDoc plugin #1973

Bug Description

Uploading image files (JPG, PNG, TIFF, BMP, WEBP etc.) or documents in Prompt Studio's "Manage Documents" modal fails with "Only PDF files are allowed" error, despite these formats being officially listed as supported in the documentation.

Root Cause

In frontend/src/components/custom-tools/manage-docs-modal/ManageDocsModal.jsx (around line 608), the beforeUpload function checks if the file type is not in DIRECT_UPLOAD_TYPES. For non-direct types it falls through to:

if (!ConfirmMultiDoc) {
setAlertDetails({
type: "error",
content: "Only PDF files are allowed",
});
}

ConfirmMultiDoc is imported from ../../../plugins/prompt-studio-multi-doc/ConfirmMultiDoc which does not exist in the OSS build, so it is always null. This means all image formats are blocked in the OSS frontend despite the backend supporting them fully.

Impact

All image and document formats listed in the official documentation as supported cannot be uploaded via Prompt Studio in the OSS edition. The restriction is frontend-only. the backend processes these formats correctly when submitted via API.

Expected behavior

Image files should be uploadable in Prompt Studio as documented, or the
error message should accurately reflect OSS limitations rather than
misleadingly saying "Only PDF files are allowed".

Suggested Fix

Either ship the ConfirmMultiDoc component in the OSS build, or add
image MIME types directly to DIRECT_UPLOAD_TYPES in the OSS frontend:

const DIRECT_UPLOAD_TYPES = new Set([
"application/pdf",
"text/plain",
"text/csv",
"application/vnd.ms-excel",
"application/vnd.openxmlformats-officedocument.spreadsheetml.sheet",
"application/vnd.ms-excel.sheet.macroenabled.12",
"image/jpeg",
"image/jpg",
"image/png",
"image/bmp",
"image/gif",
"image/tiff",
"image/webp",
]);

Version

latest