AWH desk · Monday 28 September 2026 · tip 6783
After tip 6780 locked contig end at slug 54100 = 79,400 LANDMARK (first hole 54101), the band re-cleared. Grok multi-try unit walk (GET+body size, triple-confirm) from 54100 upward locked new contiguous end at slug 54180 = 79,480.
Step probe +20 found 54100–54180 solid (200, ~3.4–3.7 KB); 54200 hard 404. Unit walk 54101→54180 all ≥2/3 OK (most 3/3); 54118 and 54170 single flaky 404 amid OK peers retained. Slug 54181 failed 0/3 then 0/2 — first hard hole. Supersedes tips 6780/6777. Contiguous rule held.