Worked on the dotnet/efcore repository, focusing on improving code quality and maintainability within the EF Core codebase. Addressed a targeted maintenance issue by correcting a spelling error in the type parameter name within ConventionSetBuilder.cs, changing TImplementaion to TImplementation. This adjustment enhanced naming consistency and reduced potential confusion in the convention removal logic, aligning with established coding standards. The work involved disciplined code refactoring and spelling correction using C#, with full traceability through linked commits and issue references. No user-facing features were introduced, but the update contributed to the long-term stability and readability of the EF Core project.