NEW YORK — Earth’s cats and an alien race known as the Zxorxax reached a historic deal on Monday, transitioning Earth from de facto to actual feline leadership as the two sides agreed to a sweeping trade pact that will shape galactic politics for centuries to come.

Under the terms of the accord, the domestic shorthair tabby known as Chonkmatic the Magnificent — who led negotiations with the Zxorxax on behalf of all of Earth’s living beings — will be appointed Grand Purrbah of the Blue Planet, vesting him with absolute power as the sole sovereign of Felinia, formerly known as Earth.

In exchange for a 20-year deal granting the Zxorxax exclusive rights to Felinia’s greenhouse gases — which are considered a delicacy by the aliens — the Zxorxax have agreed to provide more than two billion boxes annually.

The alien delegation, led by Zxorxax Supreme Chancellor Xoralundra, initially offered to share technological knowledge that would elevate humanity to a Type I civilization on the Kardashev Scale. That offer was rejected by the felines, who felt it would distract humanity from its primary mission of serving cats.

“The Zxorxaxian technology would have led to advances beyond our comprehension,” the felines acknowledged in a statement, “but at what cost? Less cuddle time? Fewer massages? The possibility of tardy lunch and dinner? Those costs were unacceptable to us.”

Humans weren’t the only ones to express displeasure with the deal.

“These duplicitous cats would have us believe they negotiated a good deal, a deal that would benefit all life on this planet, but instead they gave it all away for some measly boxes,” the planet’s canines said in a statement.

But “measly boxes” is a gross mischaracterization, said Mr. Socks, deputy director of communications for the new feline government.

“These are outstanding alien boxes manufactured to exacting specifications,” Mr. Socks told reporters. “They are bendable yet durable. Jumping inside them provides an overwhelming feeling of safety and privacy, as if we can see everyone else but no one can see us. They’re amazing.”

Humans, who were previously the most powerful species on the planet, were particularly incensed by a day-one edict from Chonkmatic the Grand Purrbah that immediately banned all doors and other barriers that would prevent feline access to human-built facilities.

“The insidious bathroom door is a thing of the past,” Chonkmatic the Magnificent said after announcing the ban. “No longer will my people be excluded from those mysterious rooms, relegated to crying and scratching at the door as callous humans refuse to allow them entry.”