Worked on the core n8n-io/n8n repository, focusing on improving the accuracy and clarity of the Filter Node’s behavior. Addressed a critical bug by correcting the documentation to reflect that the Filter Node retains items matching specified conditions, rather than removing them, thereby preventing workflow errors and reducing user confusion. Utilized TypeScript and Node.js to implement the fix, ensuring that the codebase and documentation were fully aligned. This work enhanced product reliability and reduced potential support issues related to node logic. Collaborated with other contributors to maintain repository standards and ensure that documentation accurately described actual software behavior.