Worked on improving credential management for the NousResearch/hermes-agent repository by addressing issues with stale API keys during custom endpoint model listings. The solution involved refactoring the credential resolution process to prioritize consulting the credential pool for bare custom endpoints, which reduced the risk of outdated credentials being used and enhanced the reliability of model switching across configurations. This targeted backend fix, implemented in Python, focused on API integration and configuration management, resulting in more robust model listing and endpoint switching. The change lowered operational risk and improved uptime for workflows dependent on dynamic endpoint selection, reflecting careful attention to reliability.