What was the job of first congress?

To strengthen the Constitution

On September 5, 1774, delegates from each of the 13 colonies except for Georgia (which was fighting a Native-American uprising and was dependent on the British for military supplies) met in Philadelphia as the First Continental Congress to organize colonial resistance to Parliament's Coercive Acts. The delegates included a number of future luminaries, such as future presidents John Adams (1735-1826) of Massachusetts and George Washington (1732-99) of Virginia, and future U. S. Supreme Court Chief Justice and diplomat John Jay (1745-1829) of New York. The Congress was structured with emphasis on the equality of participants, and to promote free debate. After much discussion, the Congress issued a Declaration of Rights, affirming its loyalty to the British Crown but disputing the British Parliament's right to tax it. The Congress also passed the Articles of Association, which called on the colonies to stop importing goods from the British Isles beginning on December 1, 1774, if the Coercive Acts were not repealed. Should Britain fail to redress the colonists' grievances in a timely manner, the Congress declared, then it would reconvene on May 10, 1775, and the colonies would cease to export goods to Britain on September 10, 1775. After proclaiming these measures, the First Continental Congress disbanded on October 26, 1774.