It will take a while to read through them all, but there is serious gold to be found here.
Link to National Archives 2022 JFK Record dump:
https://www.archives.gov/research/jfk/release2022
The first pages are from 1963-1964, in the heat of the investigation, full of FBI and CIA memos.
Right on Page one is this baby:
https://www.archives.gov/files/research/jfk/releases/2022/104-10004-10199.pdf
This is the first CIA Mexico City write-up of their account of Oswald in Mexico City. Unlike the other, real-time Oswald/MexCity Station memo, this one reveals that they not only notified the FBI about Oswald visiting the Soviet Embassy, but they also notified the State Department, and Department of Naval Intelligence. In this memo, the CIA grouses about how the FBI did nothing with the information.
The memo details their phone-tapping operation of the Soviet Embassy, which was run without the knowledge of the Mexican Government, who had their own tapping system of the embassy in place. The CIA notes that the Mexicans sat on their recording of Oswald until after the assassination. The CIA admits they somehow missed photographing Oswald's visit to the embassy, as they state they photograph everyone coming and going.
Interesting snapshot of a CIA field station's day-to-day activities.
I'll post more as they come along.