Ohad N. developed a feature for the starkware-libs/stwo-cairo repository that standardized opcode handling within the adapter, focusing on consolidating opcode variants and removing redundant fields. Using Rust and Cairo, he simplified the processing of key instructions such as add, add_ap, jnz, and mul, which improved the reliability and maintainability of the codebase. His work aligned the adapter’s opcode representation with stwo-air-infra, reducing code duplication and streamlining future refactoring efforts. The technical approach demonstrated a strong grasp of low-level programming and code refactoring, delivering a focused, well-integrated solution that addressed both consistency and long-term maintenance concerns.