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* ✨ feat: Allow sending file attachments without a text message When an agent asks the user to upload a document, the user could attach the file but still had to type a placeholder message ("OK", "Here is the file") before the send button enabled and the submit guard let the message through. Attachments now count as submittable content: - New isSubmittableMessage(text, fileCount) util: non-whitespace text OR at least one attached file. - ask() in useChatFunctions uses it instead of bailing on empty text, so an empty draft with attached files submits. - SendButton receives the attached file count and enables accordingly. - ChatForm only marks the text field as required when no files are attached, so react-hook-form validation no longer blocks handleSubmit. Submitting an empty draft with no attachments is still rejected at all three layers. Fixes #13646 * Address review: support replayed file-only turns + drop empty vision text - ask(): count replayed attachments (overrideFiles) in the submittable check and skip it entirely for regenerate, so a file-only message can be regenerated or saved-and-resubmitted instead of being rejected as empty. - formatVisionMessage(): omit the text content part when the message text is empty. Anthropic rejects empty text content blocks with HTTP 400, and an empty block adds nothing for other providers; image-only sends now format cleanly. Added formatMessages tests for with-text and image-only (Anthropic + other) cases. * Address review: keep attachment-only turns valid for providers, answer mode, and titles - formatMessage: substitute minimal text when a user turn carries files but no inline content, so Anthropic does not reject an empty user message for RAG or code-environment attachments. - assistants chatV1: send the same stand-in for attachment-only Threads messages, which reject an empty body. The persisted message keeps empty text. - ChatForm: attachments no longer make an empty draft submittable in answer mode, where submitText consumes the click without answering or sending. - agents request: seed title generation from attachment filenames when the turn has no text, so immediate-mode titles are not invented from an empty string. - useChatFunctions.regenerate.spec: mock the utils barrel over the real module so new exports resolve. * Cover the agents path for attachment-only turns AgentClient formats its payload with the SDK's formatMessage, not the local one, so the earlier guard missed the endpoint the feature actually targets: an attachment-only turn still reached Anthropic as an empty user message. Apply the same stand-in after the file-context and quote merges, so a turn that already gained inline content is untouched. * Carry filenames on freshly attached files The fresh-file submission mapping copied only file_id, filepath, type, and dimensions, so the attachment-only title fallback read an undefined filename and produced nothing. Include filename, and cover it with a test that submits an empty draft with one attachment. * Address review: cover assistants v2, fresh agent attachments, editor, and title fallback - agents client: the current turn has no files during buildMessages, so read the resolved attachments from message_file_map instead. The previous guard only ever fired for persisted historical turns. - assistants chatV2: the default assistants endpoint routes here, so it needs the same stand-in body chatV1 got. - assistants title: fall back to filenames, then the response, and keep the default title rather than saving an empty one. - EditMessage: retained attachments make an empty edit submittable, matching the composer, so the overrideFiles replay path is reachable from the UI. --------- Co-authored-by: Marco Beretta <81851188+berry-13@users.noreply.github.com> |
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