During June 2026, contributed backend features to github/awesome-copilot and moltbot/moltbot, focusing on reliability and efficiency. Developed a Durable Instruction Harness for coding agents in TypeScript, introducing structured instruction engineering and harness-based reliability patterns to reduce repeated execution errors. In moltbot/moltbot, implemented Feishu bot self-message filtering, enhancing message handling pipelines by preventing the bot from processing its own messages. Both features emphasized robust backend development and testing practices, resulting in more predictable automation and streamlined developer workflows. The work demonstrated attention to engineering precision, commit hygiene, and cross-repository improvements, supporting faster onboarding and clearer change history across projects.