Go workspace provides access to operations on workspaces.

Note that support for workspaces is built into many other commands, not
just 'go work'.

See 'go help modules' for information about Go's module system of which
workspaces are a part.

A workspace is specified by a go.work file that specifies a set of
module directories with the "use" directive. These modules are used as
root modules by the go command for builds and related operations.  A
workspace that does not specify modules to be used cannot be used to do
builds from local modules.

go.work files are line-oriented. Each line holds a single directive,
made up of a keyword followed by aruments. For example:
...