Katie Horne focused on enhancing developer documentation and onboarding processes for the semgrep/mcp and semgrep/semgrep-network-broker repositories. She consolidated and clarified contributor and user guides, updated the README, and improved deployment instructions for both Python package and Docker environments, all written in Markdown. Her technical writing and documentation skills were applied to streamline onboarding, making it easier for new users and contributors to set up and use the MCP server. By removing outdated configuration examples and improving editorial quality, Katie reduced user confusion and support overhead, delivering deeper, more maintainable documentation that directly addressed business and technical onboarding challenges.