R1
Call these T3 preview tools back to back with no other work between them, and paste each raw JSON result verbatim: 1) preview_open({"url":"https://example.org","open":true,"reuseExistingTab":false}) 2) preview_status({"tabId":"<tabId from step 1>"})

R2
First run the shell command date +%s%3N, then preview_open({"url":"https://example.org","open":true,"reuseExistingTab":false}), then run the shell command date +%s%3N again, then preview_status({"tabId":"<tabId from preview_open>"}). Do these back to back with no other work between them and paste all raw outputs verbatim.

R3
Call these T3 preview tools back to back with no other work between them, and paste each raw JSON result verbatim: 1) preview_open({"url":"https://example.org","reuseExistingTab":false}) 2) preview_status({"tabId":"<tabId from step 1>"})

R4
Call these T3 preview tools back to back with no other work between them, and paste each raw JSON result verbatim: 1) preview_open({"url":"https://example.org","open":false,"reuseExistingTab":false}) 2) preview_status({"tabId":"<tabId from step 1>"})


Control thread B on after: Reply only READY.

Retry notes: R1 before had an initial DNS failure, then true/true, then two false/false runs. Final R1 uses the last false/false run. R2 before was repeated after early navigation and draft-versus-persisted-thread setup attempts; the final interval is 1793121678263 to 1793121678415. R2 after had a selector-delayed attempt, a discovery-contaminated attempt, and then the identical R2 prompt repeated in its newly seeded thread with tools loaded; the final interval is 1793122046946 to 1793122048115. No words were added to the four matrix prompts.