hermes - 💡(How to fix) Fix [Feature] Add File and Image Interaction Support for DingTalk Channel [1 comments, 2 participants]

Feature Description

Currently, the DingTalk channel integration only supports plain text messages. This feature request proposes adding support for sending and receiving files and images through the DingTalk channel, enabling richer interactions for enterprise users.

Motivation

DingTalk is widely used in enterprise environments where users frequently share documents and images as part of their daily workflows. Without file support, users are forced to manually transfer files through other means, breaking the seamless assistant experience. Supporting file interactions would significantly improve productivity for DingTalk users.

Proposed Solution

Add file and image send/receive capabilities to the DingTalk channel adapter, with support for the following formats:

• Word (.doc, .docx)
• Excel (.xls, .xlsx)
• PowerPoint (.ppt, .pptx)
• PDF (.pdf)
• Images (.jpg, .jpeg, .png, .gif, etc.)

Expected Behavior

• Outbound: Agent should be able to send files/images to DingTalk chats via send_message or equivalent tool calls.
• Inbound: Agent should be able to receive and parse files/images sent by users in DingTalk (e.g., read content from an uploaded Excel sheet or PDF).

Alternatives Considered

• Manually copying file content as text — works for small documents but loses formatting and is impractical for large files.
• Using other channels (Telegram, WeChat) for file transfer — forces users to switch platforms and breaks workflow continuity.

Additional Context

• This is a pain point encountered when trying to share .md, .xlsx, and other files directly through DingTalk bot responses — current behavior silently skips file attachments.
• DingTalk open platform does provide APIs for file upload/download via its media message types, which could be leveraged for implementation.
• Related platforms (Telegram) already support file sending; a similar approach may apply here.