And here's another article from a supporter of the JCPOA: https://www.brookings.edu/articles/an-unsatisfying-outcome-o...

"The finale of the PMD controversy has been a long time coming. In November 2011, IAEA Director General Yukiya Amano issued a detailed report — based on “overall credible” information from a “wide variety of independent sources” and the Agency’s own investigations — which concluded that, at least until 2003 and possibly beyond, “Iran has carried out activities relevant to the development of a nuclear explosive device.”

In the years following the report, the IAEA actively sought to gain a better understanding of those activities, but its efforts were stymied by Iranian stonewalling and obfuscation. Tehran repeatedly claimed that the evidence on which the IAEA was relying was fabricated and based on forgeries. It denied that Iran was ever interested in nuclear weapons or that it had engaged in nuclear weapons-related research and experimentation."

...

"This may come as an unpleasant surprise to American observers, many of whom probably assumed that sanctions relief would depend on Iran credibly disclosing its past activities, not simply fulfilling the undemanding, largely procedural requirements of the “roadmap.” Critics can be expected to attack the JCPOA anew for permitting sanctions to be relieved despite the December IAEA report having concluded that Iran has not made a full accounting of its past nuclear work"

So terrible agreement and Iran not acting in good faith. And we can debate technicalities and I'll even acknowledge that "technically" you're right but it's irrelevant.

So interrogating Gemini further to clarify the ground truth about the 2016-2019 period gets me to:

The Final Verdict

So, was Iran in compliance? Under the strict text of the JCPOA (2016–2019): Yes. They met the mathematical limits on active enrichment, which is why the UN, the IAEA, and the US State Department repeatedly certified their compliance during that period.

Under the spirit of the deal and international law: No. The premise of the JCPOA was that Iran had to come clean so the IAEA had a baseline to measure against. By hiding the Atomic Archive and keeping secret contaminated sites on standby, Iran proved they negotiated the deal in bad faith and violated their foundational NPT Safeguards.

I can live with that. So if you want to be "technical" sure. Either the agreement was bad and was upheld or it was good and was violated. Either way, Iran has acted in bad faith is the bottom line.

I will add that we don't have evidence that Iran was enriching Uranium in those secret sites during this period (one could even say we have some evidence they weren't). But that still doesn't change that they acted in bad faith and/or the agreement was bad.