Package auth provides access to user-provided authentication credentials.

Package base defines shared basic pieces of the go command, in particular logging and the Command structure.

Package bisect can be used by compilers and other programs to serve as a target for the bisect debugging tool.

Package browser provides utilities for interacting with users' browsers.

Package cfg holds configuration shared by the Go command and internal/testenv.

Package goexperiment implements support for toolchain experiments.

Package gover implements support for Go toolchain versions like 1.21.0 and 1.21rc1.

Package lazytemplate is a thin wrapper over text/template, allowing the use of global template variables without forcing them to be parsed at init.

Package testenv provides information about what functionality is available in different testing environments run by the Go team.

Package vcweb serves version control repos for testing the go command.

Package web defines minimal helper routines for accessing HTTP/HTTPS resources without requiring external dependencies on the net package.