Jamie Williams contributed to the riscv/riscv-cheri repository by addressing a critical bug in the tag clearing logic, specifically ensuring that YBNDRW and YBNDSW tag states were correctly differentiated. Jamie identified and corrected a copy-paste error that previously caused these states to be treated identically, which could have led to security and correctness issues in CHERI tag management on the RISC-V platform. The solution involved careful revision of the affected logic, clear documentation of the changes, and proper commit attribution. Jamie’s work demonstrated proficiency in version control and documentation, with a focused, in-depth approach to maintaining system reliability and correctness.