Three bugs caused NERExtractor to silently return pattern-based entities
even when method="llm" was configured:
1. exc_info=True missing on method-failure warning in NERExtractor —
the root exception was swallowed, making the gateway error invisible
in logs even with DEBUG enabled.
2. OpenAIProvider.generate_structured always sent response_format=json_object
to the API. Custom/enterprise gateways (Qwen, LLaMA proxies, internal
gateways) often reject this parameter, causing both the instructor path
and the manual repair loop to fail with the same error on every retry.
3. generate_typed manual repair loop had no fallback when generate_structured
itself raised — it retried the same failing call up to max_retries times,
then propagated the error, triggering _extract_fallback (pattern extraction).
Fixes:
- Add exc_info=True to the method-failure warning so the full traceback
appears in logs and users can diagnose the root cause.
- Skip response_format=json_object in OpenAIProvider.generate_structured
when base_url is set (custom endpoint), since standard OpenAI gateways
don't require it and third-party ones reject it.
- In the generate_typed manual repair loop, catch generate_structured
failures and immediately retry via plain generate() + _parse_json,
breaking the retry-the-same-failing-call loop for custom gateways.
Also adds 17 targeted regression tests covering all three bug paths,
including the exact gateway configuration reported in the issue.
KaifAhmad1
ca5f42baf8