Rafi contributed to sst/opencode, anomalyco/opencode-anthropic-auth, and Kilo-Org/kilocode, focusing on reliability, configurability, and performance. He restored session lookup behavior in the TUI command and preserved user-defined beta headers to support flexible model configuration. In anomalyco/opencode-anthropic-auth, he improved regex-based text processing to maintain file path integrity during replacements. For sst/opencode, he enabled user plugins to override built-in plugins, enhancing customization. On Kilo-Org/kilocode, he optimized session summary generation by reducing redundant LLM calls and clarified documentation on tool precedence. His work demonstrated depth in Node.js, TypeScript, and API integration, emphasizing maintainability and user-driven extensibility.