hermes - 💡(How to fix) Fix 【Bug】set_runtime_main() missing base_url/api_key causes custom: provider fallback to wrong endpoint

Bug Description

set_runtime_main() in agent/conversation_loop.py:392 only passes provider and model to the auxiliary client router, but omits base_url, api_key, and api_mode. For users with a custom: provider (e.g. custom:openclaw-router), this causes _resolve_auto() in agent/auxiliary_client.py to fail at Step 1 because it cannot construct a valid client without base_url.

When Step 1 fails, the auto-detect chain falls through to Step 2 (aggregator/fallback chain), which may route auxiliary tasks (approval, compression, title generation, etc.) to completely different providers instead of the user's configured main provider.

Reproduction

1. Configure a custom provider in config.yaml:

   model:
     default: glm-5.1
     provider: custom:openclaw-router
     base_url: ''
   custom_providers:
     - name: openclaw-router
       base_url: https://your-domain.com/v1
       model: glm-5.1
       api_key: your-key

2. Set auxiliary.approval.provider: auto (default)
3. Trigger a smart approval (e.g. execute_code with a flagged command)
4. Observe logs: Auxiliary approval: using auto (glm-5.1) at https://api.minimaxi.com/anthropic — the request goes to minimaxi instead of the custom endpoint

Root Cause

In agent/auxiliary_client.py, _resolve_auto() Step 1 (line ~3016):

if runtime_base_url and (main_provider == "custom" or main_provider.startswith("custom:")):
    resolved_provider = "custom"
    explicit_base_url = runtime_base_url

runtime_base_url is always empty because set_runtime_main() (called from conversation_loop.py:392) only sets:

set_runtime_main(
    getattr(agent, "provider", "") or "",
    getattr(agent, "model", "") or "",
)

It does not pass base_url, api_key, or api_mode.

Expected Behavior

Auxiliary tasks should use the user's main provider endpoint when provider: auto is configured, including the correct base_url for custom: providers.

Workaround

Set auxiliary task config explicitly in config.yaml:

auxiliary:
  approval:
    provider: custom
    model: glm-5.1
    base_url: https://your-domain.com/v1
    api_key: your-key

Environment

• Hermes Agent version: 0.15.1
• Platform: Linux
• Provider: custom:openclaw-router (OpenAI-compatible endpoint)