Worked on stabilizing the OpenAI API integration within the envoyproxy/ai-gateway repository, focusing on backend reliability and accurate usage reporting. Addressed a crash scenario where the OpenAI response body could be nil by treating such cases as empty responses and ensuring zero token usage is reported. This solution involved implementing a regression test to lock in the new behavior, reducing incident risk for non-streaming and null-backend responses. The work was carried out using Go and emphasized API development, backend development, and testing. These changes improved the overall stability and correctness of token usage metrics in the integration.