Worked on enhancing the storybookjs/storybook repository by developing robust TypeScript Component Story Format (CSF) parsing capabilities. Focused on supporting advanced TypeScript constructs, the work involved implementing parsing logic for the 'satisfies' and 'as' type assertions within the csf-tools parser. Comprehensive tests were added to validate correct handling of various combinations in meta and story definitions, ensuring accurate metadata extraction even with complex TypeScript features. This effort improved the reliability and correctness of CSF tooling for TypeScript-powered stories, leveraging skills in code parsing, JavaScript, and testing to reduce downstream parsing errors and support advanced Storybook workflows.