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fix(agent): reapply provider headers after model switch

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switch_model() rebuilds _client_kwargs from scratch (api_key + base_url)
but does not call _apply_client_headers_for_base_url(), so provider-
specific headers like OpenRouter HTTP-Referer and X-Title are lost.
Subsequent requests show "Unknown" in OpenRouter dashboard logs.

Call _apply_client_headers_for_base_url() after rebuilding _client_kwargs
and before creating the new client.

Fixes #61099
This commit is contained in:
AlexFucuson9 2026-07-09 14:33:13 +07:00 • committed by Teknium
parent a801046669
commit 0a4b4d6df5
1 changed files with 5 additions and 0 deletions
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5
agent/agent_runtime_helpers.py
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@ -1953,6 +1953,11 @@ def switch_model(agent, new_model, new_provider, api_key='', base_url='', api_mo
_sm_timeout = get_provider_request_timeout(agent.provider, agent.model)
if _sm_timeout is not None:
agent._client_kwargs["timeout"] = _sm_timeout
# Reapply provider-specific headers (e.g. OpenRouter HTTP-Referer,
# X-Title) that were lost when _client_kwargs was rebuilt from
# scratch. Without this, model switches clear attribution headers
# and OpenRouter logs show "Unknown" for subsequent requests.
agent._apply_client_headers_for_base_url(effective_base)
agent.client = agent._create_openai_client(
dict(agent._client_kwargs),
reason="switch_model",