Worked on backend improvements for the docker/cagent repository, focusing on enhancing the reliability of LLM integration workflows. Addressed a correctness issue by ensuring the ModelID in the after_llm_call hook payload consistently matches the provider’s canonical ID, which strengthens contract compliance and system determinism. Implemented this fix using Go, and introduced a regression test to validate ongoing ModelID alignment through the hook dispatch path. This work reduced the risk of empty or incorrect ModelID values in downstream hooks and analytics, demonstrating careful attention to backend robustness and adherence to documented integration contracts within Go-based backend development environments.