git-blame-someone-else is a Git authorship rewriter and commit history editor designed to modify the identity information stored within a repository's commit history. It serves as a metadata modifier that replaces the author and committer details of existing commits to reattribute code changes to different users.
The tool focuses on Git identity management and repository maintenance, allowing for the update of old commit signatures and emails. This enables the correction of metadata across a project history when contributor accounts change or were entered incorrectly.