Worked on schema validation and default handling for MCP tools in the maximhq/bifrost repository, focusing on aligning backend data models with OpenAI function-calling API requirements. Addressed a recurring validation issue by ensuring that tools with no parameters always include an empty properties field and default the schemaType to 'object' when unspecified. This solution, implemented in Go and leveraging skills in API integration and schema design, improved consistency across MCP tools on the same server. The changes reduced runtime validation errors, enhanced reliability of automated tool invocation, and streamlined developer workflows by supporting seamless OpenAI-driven automation within backend systems.