One day the divine beings presented themselves before the LORD, and [the] Satan came along with them. The LORD said to the Satan, “Where have you been?” ... -“I have been roaming all over the earth.” ... -“Have you noticed My servant Job? ... a blameless and upright man who fears God and shuns evil!”... -“Does Job not have good reason to fear God? ... You have blessed his efforts so that his possessions spread out in the land. But lay Your hand upon all that he has and he will surely blaspheme You to Your face.” ... -“See, all that he has is in your power; only do not lay a hand on him.” The Satan departed from the presence of the LORD." Job.1.6-12
This passage was written presumably with Ruach Hakodesh, i.e. God dictating the happenings to a scribe, and not Job (or someone else) fantasizing about the cause of the events. However, it clearly presents God and Satan in a henotheistic way, e.g. God doesn't know Satan's whereabouts, Satan distrusts God's explicit knowledge, God lets Satan do as he pleases with God's devoted servants, etc.
How does this opening to a prophetic book square with Judaism monotheistic theology?