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+Auto Selector
+=============
+
+This selector automatically determines the most efficient set of tests and
+tasks to run against your push. It accomplishes this via a combination of
+machine learning and manual heuristics. The tasks selected here should match
+pretty closely to what would be scheduled if your patch were pushed to
+autoland.
+
+It is the officially recommended selector to use when you are unsure of which
+tasks should run on your push.
+
+To use:
+
+.. code-block::
+
+   $ mach try auto
+
+Unlike other try selectors, tasks are not chosen locally. Rather they will be
+computed by the decision task.
+
+Like most other selectors, ``mach try auto`` supports many of the standard
+templates such as ``--artifact`` or ``--env``. See ``mach try auto --help`` for
+the full list of supported templates.