Paul Clarke contributed a focused documentation update to the riscv/riscv-isa-manual repository, clarifying the semantics of misa.X terminology. He replaced the term 'present' with 'implemented' throughout the manual to more accurately describe the status of non-standard hardware extensions, aligning the language with established usage in misa-related contexts. Using Markdown and applying technical writing skills, Paul provided explicit rationale for the change, reducing ambiguity for readers and tool developers. This update improved the manual’s precision and consistency, supporting clearer understanding and more reliable implementation decisions across the RISC-V ecosystem. The work demonstrated careful attention to detail and domain accuracy.