May 2025 performance summary: Focused documentation improvements across astral-sh/ruff and markedjs/marked to improve readability, consistency, and risk mitigation. Key features delivered: Ruff docs — refactored rule status icon generation, added styling constants, and reorganized display logic for rule status and fixability to achieve a more consistent and visually appealing presentation. Marked docs — added guidance to USING_PRO.md about the risk of infinite extensions when using a single global Marked instance, and recommended using a separate instance if repeated execution cannot be prevented. Major bugs fixed: none identified; noted doc-quality improvements. Overall impact: reduces developer confusion, accelerates onboarding, and mitigates runtime risks for users. Technologies/skills demonstrated: documentation engineering, refactoring for readability, risk assessment, cross-repo collaboration, and clear technical communication.