hermes - 💡(How to fix) Fix Weixin send_message fails with session timeout due to process isolation [1 participants]

Problem

The send_message tool supports Weixin (platform_map contains "weixin"), but sending messages to Weixin fails with session timeout errors (errcode=-14) when called from the CLI agent, even though the Gateway process has an active Weixin connection.

Root Cause

The Gateway process and the CLI agent process are separate Python processes that do not share memory state:

• Gateway: _LIVE_ADAPTERS dict contains the active Weixin connection with valid session context
• CLI agent: _LIVE_ADAPTERS dict is empty — each new process creates its own adapter instance without the valid session

When send_message is called, it runs in the CLI agent process, creates a brand-new WeixinAdapter instance, and attempts to send via the raw iLink API without the valid session context that the Gateway has already established.

Code Evidence

In tools/send_message_tool.py:

if platform == Platform.WEIXIN:
    return await _send_weixin(pconfig, chat_id, message, media_files=media_files)

In gateway/platforms/weixin.py, send_weixin_direct():

live_adapter = _LIVE_ADAPTERS.get(resolved_token)
if live_adapter is not None and send_session is not None and not send_session.closed:
    # Uses the live adapter's established session
    ...
else:
    # Falls back to creating a new adapter with a fresh connection
    async with aiohttp.ClientSession() as session:
        adapter = WeixinAdapter(...)
        # New connection, no valid session context

Since _LIVE_ADAPTERS is a module-level dict, each Python process has its own copy. The Gateway has the valid connection; the CLI agent doesn't.

Observed Behavior

1. Gateway process shows active TCP connections to iLink servers
2. CLI agent process has NO active connections to iLink
3. Weixin messages sent via Gateway connection work (user confirmed receiving messages)
4. Weixin messages sent via send_message tool consistently fail with -14 (session timeout)

Suggested Fix

send_weixin_direct() should route through the Gateway's IPC mechanism instead of creating independent connections. Other platforms (Telegram, Discord) may have the same issue.

See: gateway/platforms/weixin.py:send_weixin_direct() and tools/send_message_tool.py:_send_weixin()