hermes - 💡(How to fix) Fix feishu: Markdown tables render as garbled text — missing post-format table support [2 comments, 2 participants]

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NousResearch/hermes-agent#18704Fetched 2026-05-03 04:54:51
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Fix Action

Workaround

None. Users see garbled text. Complex data summaries (approvals, financial data, etc.) are unreadable.

Code Example

| # | Name | Amount |
|---|------|--------|
| 1 | Foo  | 100.00 |

---

|#|Name|Amount| |---|------|--------| |1|Foo|100.00|
RAW_BUFFERClick to expand / collapse

Problem

Hermes Feishu adapter converts agent Markdown output to Feishu "post" format (msg_type="post"), but the markdown-to-post renderer in gateway/platforms/feishu.py does not handle table elements.

Result: Markdown tables like:

| # | Name | Amount |
|---|------|--------|
| 1 | Foo  | 100.00 |

Render in Feishu as garbled plain text:

|#|Name|Amount| |---|------|--------| |1|Foo|100.00|

Where

  • gateway/platforms/feishu.py_render_text_element(), _render_code_block_element(), and the markdown-to-post conversion pipeline
  • Post format uses Feishu table / tr / td elements for proper table rendering, but these are never generated

Expected

Markdown tables → Feishu post-format table elements, rendering as proper tables in Feishu clients.

Workaround

None. Users see garbled text. Complex data summaries (approvals, financial data, etc.) are unreadable.

extent analysis

TL;DR

Update the _render_text_element() and _render_code_block_element() functions in gateway/platforms/feishu.py to handle Markdown table elements and generate Feishu table elements.

Guidance

  • Identify the Markdown table parsing logic in the Hermes Feishu adapter and extend it to recognize table elements (|, ---, etc.) and convert them to Feishu table, tr, and td elements.
  • Inspect the existing markdown-to-post conversion pipeline to determine where table elements are being lost or misinterpreted.
  • Consider adding a custom rendering function for Markdown tables, similar to how other elements are handled, to ensure proper conversion to Feishu post format.
  • Review the Feishu API documentation to confirm the correct structure and syntax for table elements in post format.

Example

def _render_table_element(table_element):
    # Simplified example, actual implementation may vary
    feishu_table = {"tag": "table"}
    for row in table_element.rows:
        tr = {"tag": "tr"}
        for cell in row.cells:
            tr["content"].append({"tag": "td", "text": cell.text})
        feishu_table["content"].append(tr)
    return feishu_table

Notes

The provided example is a simplified illustration and may require adjustments to fit the actual implementation details of the Hermes Feishu adapter and Feishu API.

Recommendation

Apply workaround by extending the existing rendering functions to handle Markdown tables, as a proper fix would require updating the adapter's logic to generate correct Feishu post-format table elements.

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hermes - 💡(How to fix) Fix feishu: Markdown tables render as garbled text — missing post-format table support [2 comments, 2 participants]