Ayyan Sameer Shaikh worked on both ToolJet/ToolJet and PrunaAI/pruna, focusing on feature development and codebase improvements. For ToolJet/ToolJet, he refactored the InviteUsersForm component to support dark mode, dynamically adjusting icon fill colors based on user theme preferences stored in localStorage, which enhanced accessibility and user experience across themes using React and JavaScript. In PrunaAI/pruna, he improved evaluation workflows by enabling direct parameter initialization in EvaluationAgent and added flexible path handling for model loading and saving, supporting both string and pathlib.Path types. His work emphasized maintainability, robust API design, and comprehensive testing in Python environments.