Developed an enhancement for the sst/opencode repository by integrating support for gpt-5-mini models within the GitHub Copilot workflow. The work focused on enabling a low reasoning mode, which reduces computational overhead and streamlines the developer experience when using Copilot with advanced AI models. This feature was implemented using TypeScript and leveraged AI integration techniques to optimize the Copilot flow for efficiency. The solution included a targeted fix to ensure that gpt-5 models operate with minimal reasoning effort, laying the groundwork for broader model support. Collaboration was emphasized through co-authored contributions, reflecting a team-oriented approach to feature delivery.