September 2025 performance highlights include delivering a feature-rich MCP calculator server in Go with multiple transports (stdio and streamable HTTP), implementing math/statistical/financial functions, and robust error handling with comprehensive tests. The month also included a repository-wide licensing migration from MIT to Apache-2.0, updating headers, docs, and license references to improve compliance and openness. Code quality improvements encompassed YAML config cleanup, removal of obsolete tests, and documentation updates to reflect current state. Additionally, a new Go-based calculator server was added to the data-science tooling in the punkpeye/awesome-mcp-servers repo, expanding computation capabilities for MCP workflows. Key outcomes include enhanced calculation capabilities for MCP clients, standardized licensing reducing legal risk, and improved maintainability and developer onboarding through clearer docs and cleaner configs.