Retired four-star Army Gen. Jack Keane on Wednesday expressed skepticism about a U.S.-Iran agreement designed to end months of conflict, arguing that the framework falls short of President Donald Trump's stated goals and leaves major national security concerns unresolved.

Speaking on WABC radio's "The Cats and Cosby Show," Keane said his initial reaction focused less on what the agreement contains than on what it appears to omit.

"My gut reaction is more about what's not in there than what's in it," Keane said.

He pointed specifically to the lack of publicly detailed provisions addressing Iran's ballistic missile program and questions surrounding the inspection and verification of Iranian nuclear activities.

"I was really expecting a little more meat on the bone," Keane said.

"We're a long way from accomplishing the objectives that the president wants to accomplish here with the Iranians. ... We're at the beginning of a process that's going to take some time here for sure."

The comments come as the Trump administration prepares for the expected signing of a memorandum of understanding intended to extend a ceasefire and launch a 60-day negotiating process focused on Iran's nuclear program, sanctions relief, and regional security issues. 

U.S. officials have described the agreement as a framework rather than a final settlement, with many substantive issues left for future talks. Reports on the draft framework indicate it includes steps to reopen the Strait of Hormuz, restore commercial shipping traffic, provide sanctions waivers, and establish a structure for additional negotiations.

According to details released by U.S. officials, the memorandum also calls for negotiations over Iran's nuclear activities, including the handling of enriched uranium under international oversight, while setting a timeline for discussions that could ultimately lead to a more comprehensive agreement.

Keane suggested Tehran could view the current arrangement as advantageous.

"They got a ceasefire," he told hosts John Catsimatidis and Rita Cosby.

"Now they're moving towards a final agreement. And they're going to delay that as much as possible, believing that the closer we get to the midterms, the less likely the president will return with military operations."

The White House has pushed back against some reported details circulating in leaked versions of the proposed agreement.

White House Communications Director Steven Cheung said reported text that has appeared in media accounts "does not reflect the language of the actual MOU."

The emerging agreement has also drawn criticism from some congressional Republicans, many of whom have demanded greater transparency before offering support.

"The details that I've seen so far look ... awful. This will go down as a tremendous foreign policy blunder," Sen. Bill Cassidy, R-La., told Nexstar.