This is an empty Go subrepository. To create a new subrepository, visit http://code.google.com/p/go/adminSource and under repositories, type the new name, check [x] Clone contents and select [empty] as the one you want to clone. Then execute: go get code.google.com/p/go.newrepo cd $(go list -e -f '{{.Dir}}' code.google.com/p/go.newrepo) The go get will complain about not finding source code, but it will successfully check out the repository. Edit the README (this file) to describe the new subrepository, and then use the usual hg change, mail, submit to send in the change. You will need to follow http://golang.org/doc/contribute.html#Code_review to enable the Code Review extension (pointing into your Go root).