Worked on the golang/go repository to enhance image decoding security for untrusted input, focusing on memory allocation safety and robust documentation. Implemented a secure decoding pattern in Go, introducing guidance that highlights how image.Decode may allocate memory proportional to input dimensions before validation, while image.DecodeConfig reads only headers. Added cross-package notes for related functions to ensure consistent security messaging. Developed an example demonstrating safe decoding with oversized-dimension checks using int64 arithmetic. Updated security considerations to align with Go best practices, referencing relevant issues and reviews. The work emphasized Go programming, image processing, and adherence to security best practices throughout.