Contributed to the mdn/content repository by delivering two targeted documentation improvements focused on clarity and reliability for web developers. Enhanced the SubtleCrypto API documentation by clarifying the behavior of the extractable parameter, reducing ambiguity around private key exportability and supporting safer cryptography usage. Refactored DOM manipulation examples to use document.querySelector instead of document.body.querySelector, aligning with best practices and improving code consistency. Collaborated through co-authored commits and maintained clear commit messages to support ongoing review and maintainability. Leveraged JavaScript, Markdown, and front end development skills to improve documentation accuracy, developer trust, and the overall quality of code samples.