WASHINGTON — In case anyone was wondering, President Trump wants it known that he does not care about the false judgment of his administration after just 100 days. “It’s an artificial barrier,” he sniffed the other day. “Not very meaningful,” he scoffed. A “ridiculous standard,” he added on Twitter.

So how is Mr. Trump spending his final week before the artificial and ridiculous 100-day point of his presidency? With a flurry of action on health care, taxes and the border wall to show just how much he has done in the first 100 days — amplified by a White House program of first-100-days briefings, first-100-days receptions, a first-100-days website and a first-100-days rally.

It may not be meaningful, but Mr. Trump has invested quite a lot of meaning in the 100-day grading period, deeply anxious that he be judged a success at this early stage. And not just a success, but one with plenty of superlatives: the most successful president with the most executive orders and bills signed and the best relationships with foreign leaders and the most action taken by any president ever in the first 100 days. Even though it’s an artificial barrier.

“As with so much else, Trump is a study in inconsistency,” said Robert Dallek, the presidential historian. “One minute he says his 100 days have been the best of any president, and the next minute he decries the idea of measuring a president by the 100 days.”