Worked on the sveltejs/kit repository to enhance the accuracy and clarity of service worker documentation, focusing on improving typing for ServiceWorkerGlobalScope in developer examples. Addressed a specific bug by updating the type-casting of the self variable, replacing previous patterns with a direct assignment from globalThis.self to self, ensuring correct TypeScript typings. This adjustment reduced ambiguity for developers implementing service workers in JavaScript and TypeScript, aligning documentation with project standards. The work improved onboarding and reduced support questions by clarifying how service worker globals should be typed, demonstrating attention to detail in both documentation quality and developer experience.