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hermes - 💡(How to fix) Fix [Feishu] MEDIA:/path/ attachments silently stripped — files not delivered

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When using send_message with MEDIA:/path/to/file targeting a Feishu chat, the file attachment is silently stripped. The user receives only the text portion of the message. No error is raised.

Error Message

of the message. No error is raised.

Root Cause

When using send_message with MEDIA:/path/to/file targeting a Feishu chat, the file attachment is silently stripped. The user receives only the text portion of the message. No error is raised.

Fix Action

Fix / Workaround

Notes

  • Receiving files FROM Feishu works correctly (image_cache, document_cache)
  • Other platforms (Telegram, Discord) deliver MEDIA: attachments correctly
  • Workaround: use rsync (hermes-pull) to retrieve files locally
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Summary

When using send_message with MEDIA:/path/to/file targeting a Feishu chat, the file attachment is silently stripped. The user receives only the text portion of the message. No error is raised.

Environment

  • Hermes version: v0.12.0 (2026.4.30)
  • Platform: Feishu/Lark (WebSocket mode)
  • VPS: Ubuntu 24.04, Tencent Cloud SG
  • LLM: gpt-5.4-mini

Steps to reproduce

  1. Ask Hermes to send a .docx or .pptx file via Feishu
  2. Hermes calls: send_message( action="send", target="feishu:oc_xxx", message="Here is the file. MEDIA:/home/ubuntu/agentWork/inbox/report.docx" )
  3. User receives the text message only — no attachment delivered

Expected behavior

File is uploaded to Feishu and delivered as a native file attachment (like Telegram does).

Actual behavior

MEDIA: token is stripped silently. Only plain text is delivered. Hermes itself acknowledges: "send_message currently omits MEDIA attachments for Feishu"

Related issues

  • #16524 (audio sent as file attachment instead of voice bubble) — same function _send_uploaded_file_message in feishu.py appears to be involved

Notes

  • Receiving files FROM Feishu works correctly (image_cache, document_cache)
  • Other platforms (Telegram, Discord) deliver MEDIA: attachments correctly
  • Workaround: use rsync (hermes-pull) to retrieve files locally

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FAQ

Expected behavior

File is uploaded to Feishu and delivered as a native file attachment (like Telegram does).

#task chaining#parallel task#integration issue#index setup#retrieval issue

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