What powers started and written down in the Constitution?

The U.S. Constitution outlines several powers that are explicitly granted to the federal government, including the power to levy taxes, regulate commerce, declare war, and maintain armed forces. Additionally, it establishes the framework for the legislative, executive, and judicial branches, delineating their respective powers and responsibilities. The Constitution also includes the Necessary and Proper Clause, allowing Congress to make laws needed to execute its enumerated powers. Finally, the Tenth Amendment reserves powers not delegated to the federal government for the states and the people.