Yeah, that's not accurate. First because the Constitution sets limits on the Feds, not on private parties (Congress shall make no law concerning not no one shall ever agree to do). Second because that would eliminate virtually all business agreements, as they almost always require things from the individual (NDA's, non-competes, company rules about conduct etc) that the Feds would be prohibited from doing.
If what you're saying is true, then either the Feds would ahve the power to make a law banning wearing bikinis, or your employer would be prohibited from having a dress code that didn't allow you to wear a bikini to work.
I wouldn't be surprised about a law about wearing bikinis. But dress code is not in the enumerated powers so it would be unconstitutional.
Nothing in the clause I quoted says anything about or like "Congress shall make no law". It is difficult to debate the intent of the Constitution if you twist it and rearrange it. Generally, the Constitution does as you say - it sets limits on the feds. But the clause I quoted specifically limits the states and the courts. The feds may only create laws within the power granted by the Constitution and when they do create laws within their power, federal law and the Constitution rule. The order is:
Constitution
|
Federal Law
|
State Law
|
Local Law
|
Contracts
If anything further up the chain nullifies your case then your case is null.
Can two parties enter into an agreement making one the slave of another?
Can two parties enter into an agreement so that one works for the other at less than minimum wage?