Package eg implements the example-based refactoring tool whose command-line is defined in golang.org/x/tools/cmd/eg.

Package importgraph computes the forward and reverse import dependency graphs for all packages in a Go workspace.

Package rename contains the implementation of the 'gorename' command whose main function is in golang.org/x/tools/cmd/gorename.

Package satisfy inspects the type-checked ASTs of Go packages and reports the set of discovered type constraints of the form (lhs, rhs Type) where lhs is a non-trivial interface, rhs satisfies this interface, and this fact is necessary for the package to be well-typed.