Worked on stabilizing Windows-specific resource management in the aws/bedrock-agentcore-starter-toolkit by addressing a resource leak related to temporary ZIP file handling. Using Python, the developer enhanced the _create_zip_file function to ensure the temporary file handle is always released, regardless of execution path, by adding temp_zip.close() within a finally block. This bug fix improved Windows compatibility and reduced the risk of file descriptor exhaustion, which previously led to unreliable builds and flaky tests in continuous integration environments. The work demonstrated attention to robust resource management and contributed to more stable and predictable behavior for end users on Windows platforms.