the judicial branch makes sure the law is constitutional (confirmed by this passage the most important part of the judicial branch is the Supreme Court. The Supreme Court's role is to interpret the Constitution and limit the powers of the other branches of government.) not taking credit for passage / the legislative branch creates laws /and the executive branch enforces the laws.
The article set up a government that consisted of one house body of govens with each state having a single vote to actively could make decisions on certain things. There was no president and of course no judiciary.