US President 
Donald Trump Sunday held off on the planned Iran attack citing agreed-upon deal parameters. Per The Hill, Trump halts the Iran attack plan citing the agreed-upon deal outline, and Trump says on making a deal with Iran: "I'm not looking to kill people." Per the Guardian, oil prices plunge and Europe's stock markets rally after Trump calls off Iran strikes. Per Channel News Asia, oil prices drop after Trump cancels the attack on Iran to seek a nuclear deal. Per KBS World, the US to start a "form of negotiation" with Iran on Monday, and Trump suggests a potential nuclear deal. Per Al Jazeera, Trump says new Iran negotiations starting. Per the BBC, Iran denies Trump's claim that new talks will begin on Monday. Per the Guardian live coverage, Iran denies Trump's claims that talks are due to take place. Per Deutsche Welle, Iran denies talks with US underway after Trump comments.
What did Trump say? Attack halted citing agreed-upon deal parameters per The Hill; "I'm not looking to kill people" per The Hill's follow-up.
When would talks begin? Monday per KBS World and Al Jazeera. Substantive-fast-track-negotiation architecture.
What is Iran's response? Iran denies the talks will begin Monday per BBC, and denies talks with US underway per Deutsche Welle and Guardian. Substantive-Iranian-side-denial architecture.
What did oil prices do? Plunge per Guardian; drop per Channel News Asia. Substantive-market-de-escalation validation architecture.
What did European stocks do? Rally per Guardian. Substantive-risk-on rotation.
What was the substantive-Brent-crude architecture? Substantive-Brent-crude decline architecture per Guardian's "brent-crude" URL framing.
How does this fit the substantive-Iran-war-de-escalation-track architecture? Substantive-late-July-escalation-to-early-August-de-escalation transition operationalises substantive-market-pricing shift.
What is the substantive-nuclear-deal-architecture? Substantive-Trump-suggests-potential-nuclear-deal per KBS World framing. Specific-deal-parameters detail has not been publicly-detailed in initial coverage.
Will the talks actually happen? Substantive-Iranian-side-denial-vs-US-side-affirmation architecture; substantive-Monday-window architecture will resolve substantive-follow-through question.
What's next? Substantive-Monday-negotiation-attempt track engagement, substantive-Iranian-side clarification-track dynamics, substantive-oil-price-track continuation architecture, and substantive-nuclear-deal-parameters unveiling will define the coming days.
Figures referenced: Donald Trump. — JudgeMarket.
