diff --git a/scripts/size/scenarios.js b/scripts/size/scenarios.js
index e233bdebe3..c926372c0d 100644
--- a/scripts/size/scenarios.js
+++ b/scripts/size/scenarios.js
@@ -1118,8 +1118,9 @@ module.exports = [
     // (43,875 B minified). Lower only: cap at measured + 10 B rounded up to
     // 0.01 KB; recorded minified never raised.
     // A tick whose writes net to the committed value pends no errored re-run (D-8, async-gen rerun on 5e68925c) (2026-10-30, over next @ 7135a77a): 14.89 -> 14.95 KB, recorded minified 43,875 -> 43,888 B (+13 B), measured locally (linux) at 14,932 B brotli. A signal read whose staging equals its committed value is not a read of the frame's future (`read`): +13 B minified, the rest brotli layout. Correctness. Cap at measured + 10 B rounded up to 0.01 KB; recorded minified = measured.
-    limit: "14.95 KB",
-    capMinified: 43888,
+    // Batch re-record after the 2026-10-30 merges (#4454, #4457, #4461; over next @ 563b6b0): 14.95 KB -> 14.97 KB, recorded minified 43,888 -> 43,924 B (+36 B), measured locally (linux) at 14,951 B brotli. Growth is #4454's `stagedScreen` held-node check (+20 B minified in core.js) and #4457's same-error skip in `errorFamily`; together they put next over this cap. Cap at measured + 10 B rounded up to 0.01 KB; recorded minified = measured.
+    limit: "14.97 KB",
+    capMinified: 43924,
     alias
   },
   {
@@ -1440,9 +1441,10 @@ module.exports = [
     // 0.01 KB; recorded minified never raised.
     // A held memo's parked reader re-derives at the seam (#4439, 2026-10-30, over next @ b249ad96): 11.04 KB -> 11.07 KB, recorded minified 30,408 -> 30,492 B (+84 B), measured locally (linux) at 11,057 B brotli. `laneSeams` also re-derives a reader whose pass read a held node, so `isPending` of a memo parked behind a held one turns true. Correctness. Cap at measured + 10 B rounded up to 0.01 KB; recorded minified = measured.
     // A probe beside `latest()` outside any Loading no longer loops on a refetch (F-6, D-23; 2026-10-30, over next @ 7135a77a): 11.07 KB -> 11.10 KB, recorded minified 30,492 -> 30,569 B (+77 B), measured locally (linux) at 11,085 B brotli. `pendingVerdict` remembers the transaction a `latest` read of an unheld flight opened, and a probe in it joins the verdict lane without asking to re-run at its landing (the re-run re-opened it every flush). Correctness. Cap at measured + 10 B rounded up to 0.01 KB; recorded minified = measured.
+    // Batch re-record (2026-10-30, over next @ 563b6b0): cap unchanged, recorded minified 30,569 -> 30,596 B (+27 B), measured locally (linux) at 11,092 B brotli. Growth is the 2026-10-30 merges (#4454, #4457, #4461). Recorded minified = measured.
     limit: "11.10 KB",
     // latest() read inline and through a memo show the same screen (#4284 through a memo; a plain write beside an async memo), 2026-10-29, over next @ 7ebd4a32: recorded minified 28,693 -> 29,086 B (+343 B minified over next), measured locally (linux) at 10,565 B brotli (+135 B over next). A render effect a verdict memo's change re-runs reads as its verdict reader for that pass (`laneDirty`), a pass that read a staging before the frame had a transaction re-derives once as a verdict reader only if the frame parks, `latest()` of a first load in flight in a verdict lane is loading (also through an identity memo, a derived store and `isPending`), a lane's dissolution leaves such a load and the nodes pending on it uninitialized instead of committing `undefined`, a verdict lane born at a seam is judged at it, a pass born in a staged reader stays the frame's on a verdict-memo read (C4, #4010), a plain write beside `latest()` computes once (the seam re-derives a pre-transaction staged reader only if the frame parks), a verdict reader's plain read of a staging in a transaction only a `latest()` opened is the frame's read, so a memo of `latest()` computes once too (D-22; not a pass with no value yet, D-6), and an error stays the display while the memo it came through re-asks, a Loading fallback behind it included (D-39, async-gen 91501 #1831). recompute's CONFIG_VERDICT clear now sits behind the lane engine: -21 B minified on every floor. Correctness; the maintainer: "only flag me if brotli goes more than 20kb" (2026-10-29). Cap unchanged; recorded minified = measured.
-    capMinified: 30569,
+    capMinified: 30596,
     alias
   },
   {
@@ -1488,8 +1490,9 @@ module.exports = [
     // unchanged at 8.06 KB, recorded minified 21,718 -> 21,719 B; CI-measured at 8,041 B
     // (21,719 B minified). Lower only: cap at measured + 10 B rounded up to
     // 0.01 KB; recorded minified never raised.
+    // Batch re-record (2026-10-30, over next @ 563b6b0): cap unchanged, recorded minified 21,719 -> 21,732 B (+13 B), measured locally (linux) at 8,043 B brotli. Growth is the 2026-10-30 merges (#4454, #4457, #4461). Recorded minified = measured.
     limit: "8.06 KB",
-    capMinified: 21719
+    capMinified: 21732
   },
   {
     name: "app: render + one signal (the simple-app floor)",
@@ -2731,11 +2734,12 @@ module.exports = [
     // measured + 10 B rounded up to 0.01 KB; recorded minified never raised.
     // Batch re-record (2026-10-30, next @ 32163a9, size job 123956613767): cap unchanged, recorded minified 98,588 -> 98,607 B, measured in CI at 32,416 B brotli. Growth is the 2026-10-30 merges (#4424, #4436, #4416, #4442); #4416's truncation sweep is the +19 B minified on the hydrating scenarios. Cap at measured + 10 B rounded up to 0.01 KB where over; recorded minified = measured.
     // A held memo's parked reader re-derives at the seam (#4439, 2026-10-30, over next @ b249ad96): 32.42 KB -> 32.45 KB, recorded minified 98,607 -> 98,689 B (+82 B), measured locally (linux) at 32,433 B brotli. `laneSeams` also re-derives a reader whose pass read a held node, so `isPending` of a memo parked behind a held one turns true. Correctness. Cap at measured + 10 B rounded up to 0.01 KB; recorded minified = measured.
+    // Batch re-record (2026-10-30, over next @ 563b6b0): cap unchanged, recorded minified 98,689 -> 98,387 B (-302 B), measured locally (linux) at 32,372 B brotli. Growth is the 2026-10-30 merges (#4454, #4457, #4461). Recorded minified = measured.
     limit: "32.45 KB",
     // An Errored heals when the last reader that caught its error is disposed (#4373, #4384, 2026-10-28, re-recorded over next @ cbc0eebd): recorded minified 96,989 -> 97,047 B (+58 B minified over next's record), measured locally (linux) at 31,811 B brotli. Recorded minified = measured; CI re-bases.
     // Boundary readers keyed by the source they wait on (#4373), with enterLane's tail folded into one else-chain as an offset (-29 B on lane pages) (#4384, 2026-10-28, re-recorded over next @ 1b32ff2e): recorded minified 97,024 -> 97,045 B (+21 B minified over next's record), measured locally (linux) at 31,798 B brotli. Recorded minified = measured; CI re-bases.
     // latest() read inline and through a memo show the same screen (#4284 through a memo; a plain write beside an async memo), 2026-10-29, over next @ 7ebd4a32: recorded minified 97,045 -> 97,426 B (+240 B minified over next), measured locally (linux) at 31,976 B brotli (+109 B over next). A render effect a verdict memo's change re-runs reads as its verdict reader for that pass (`laneDirty`), a pass that read a staging before the frame had a transaction re-derives once as a verdict reader only if the frame parks, `latest()` of a first load in flight in a verdict lane is loading (also through an identity memo, a derived store and `isPending`), a lane's dissolution leaves such a load and the nodes pending on it uninitialized instead of committing `undefined`, a verdict lane born at a seam is judged at it, a pass born in a staged reader stays the frame's on a verdict-memo read (C4, #4010), a plain write beside `latest()` computes once (the seam re-derives a pre-transaction staged reader only if the frame parks), a verdict reader's plain read of a staging in a transaction only a `latest()` opened is the frame's read, so a memo of `latest()` computes once too (D-22; not a pass with no value yet, D-6), and an error stays the display while the memo it came through re-asks, a Loading fallback behind it included (D-39, async-gen 91501 #1831). recompute's CONFIG_VERDICT clear now sits behind the lane engine: -21 B minified on every floor. Correctness; the maintainer: "only flag me if brotli goes more than 20kb" (2026-10-29). Cap unchanged; recorded minified = measured.
-    capMinified: 98689,
+    capMinified: 98387,
     alias
   },
   {
@@ -3387,8 +3391,9 @@ module.exports = [
     // B; CI-measured at 15,187 B (41,968 B minified). Lower only: cap at
     // measured + 10 B rounded up to 0.01 KB; recorded minified never raised.
     // Batch re-record (2026-10-30, next @ 32163a9, size job 123956613767): cap unchanged, recorded minified 41,968 -> 41,969 B, measured in CI at 15,193 B brotli. Growth is the 2026-10-30 merges (#4424, #4436, #4416, #4442); #4416's truncation sweep is the +19 B minified on the hydrating scenarios. Cap at measured + 10 B rounded up to 0.01 KB where over; recorded minified = measured.
+    // Batch re-record (2026-10-30, over next @ 563b6b0): cap unchanged, recorded minified 41,969 -> 41,982 B (+13 B), measured locally (linux) at 15,180 B brotli. Growth is the 2026-10-30 merges (#4454, #4457, #4461). Recorded minified = measured.
     limit: "15.20 KB",
-    capMinified: 41969,
+    capMinified: 41982,
     alias: observeAlias
   },
   {
@@ -3992,8 +3997,9 @@ module.exports = [
     // B; CI-measured at 9,967 B (27,270 B minified). Lower only: cap at
     // measured + 10 B rounded up to 0.01 KB; recorded minified never raised.
     // Batch re-record (2026-10-30, next @ 32163a9, size job 123956613767): cap unchanged, recorded minified 27,270 -> 27,271 B, measured in CI at 9,961 B brotli. Growth is the 2026-10-30 merges (#4424, #4436, #4416, #4442); #4416's truncation sweep is the +19 B minified on the hydrating scenarios. Cap at measured + 10 B rounded up to 0.01 KB where over; recorded minified = measured.
+    // Batch re-record (2026-10-30, over next @ 563b6b0): cap unchanged, recorded minified 27,271 -> 27,284 B (+13 B), measured locally (linux) at 9,963 B brotli. Growth is the 2026-10-30 merges (#4454, #4457, #4461). Recorded minified = measured.
     limit: "9.98 KB",
-    capMinified: 27271,
+    capMinified: 27284,
     alias
   },
   {
@@ -4133,8 +4139,9 @@ module.exports = [
     // (79,986 B minified). Lower only: cap at measured + 10 B rounded up to
     // 0.01 KB; recorded minified never raised.
     // A tick whose writes net to the committed value pends no errored re-run (D-8, async-gen rerun on 5e68925c) (2026-10-30, over next @ 7135a77a): 26.27 -> 26.31 KB, recorded minified 79,986 -> 79,999 B (+13 B), measured locally (linux) at 26,294 B brotli. A signal read whose staging equals its committed value is not a read of the frame's future (`read`): +13 B minified, the rest brotli layout. Correctness. Cap at measured + 10 B rounded up to 0.01 KB; recorded minified = measured.
-    limit: "26.31 KB",
-    capMinified: 79999,
+    // Batch re-record after the 2026-10-30 merges (#4454, #4457, #4461; over next @ 563b6b0): 26.31 KB -> 26.33 KB, recorded minified 79,999 -> 80,035 B (+36 B), measured locally (linux) at 26,312 B brotli. Growth is #4454's `stagedScreen` held-node check (+20 B minified in core.js) and #4457's same-error skip in `errorFamily`; together they put next over this cap. Cap at measured + 10 B rounded up to 0.01 KB; recorded minified = measured.
+    limit: "26.33 KB",
+    capMinified: 80035,
     alias
   },
   {
@@ -4307,8 +4314,9 @@ module.exports = [
     // (100,748 B minified). Lower only: cap at measured + 10 B rounded up to
     // 0.01 KB; recorded minified never raised.
     // A tick whose writes net to the committed value pends no errored re-run (D-8, async-gen rerun on 5e68925c) (2026-10-30, over next @ 7135a77a): 32.43 -> 32.52 KB, recorded minified 100,748 -> 100,761 B (+13 B), measured locally (linux) at 32,508 B brotli. A signal read whose staging equals its committed value is not a read of the frame's future (`read`): +13 B minified, the rest brotli layout. Correctness. Cap at measured + 10 B rounded up to 0.01 KB; recorded minified = measured.
+    // Batch re-record (2026-10-30, over next @ 563b6b0): cap unchanged, recorded minified 100,761 -> 100,797 B (+36 B), measured locally (linux) at 32,473 B brotli. Growth is the 2026-10-30 merges (#4454, #4457, #4461). Recorded minified = measured.
     limit: "32.52 KB",
-    capMinified: 100761,
+    capMinified: 100797,
     alias
   },
   {
@@ -5914,11 +5922,12 @@ module.exports = [
     // Batch re-record (2026-10-30, next @ 32163a9, size job 123956613767): cap unchanged, recorded minified 125,266 -> 125,285 B, measured in CI at 42,636 B brotli. Growth is the 2026-10-30 merges (#4424, #4436, #4416, #4442); #4416's truncation sweep is the +19 B minified on the hydrating scenarios. Cap at measured + 10 B rounded up to 0.01 KB where over; recorded minified = measured.
     // A held memo's parked reader re-derives at the seam (#4439, 2026-10-30, over next @ b249ad96): 42.65 KB -> 42.67 KB, recorded minified 125,285 -> 125,374 B (+89 B), measured locally (linux) at 42,655 B brotli. `laneSeams` also re-derives a reader whose pass read a held node, so `isPending` of a memo parked behind a held one turns true. Correctness. Cap at measured + 10 B rounded up to 0.01 KB; recorded minified = measured.
     // A probe beside `latest()` outside any Loading no longer loops on a refetch (F-6, D-23; 2026-10-30, over next @ 7135a77a): 42.67 KB -> 42.71 KB, recorded minified 125,374 -> 125,450 B (+76 B), measured locally (linux) at 42,693 B brotli. `pendingVerdict` remembers the transaction a `latest` read of an unheld flight opened, and a probe in it joins the verdict lane without asking to re-run at its landing (the re-run re-opened it every flush). Correctness. Cap at measured + 10 B rounded up to 0.01 KB; recorded minified = measured.
+    // Batch re-record (2026-10-30, over next @ 563b6b0): cap unchanged, recorded minified 125,450 -> 125,478 B (+28 B), measured locally (linux) at 42,695 B brotli. Growth is the 2026-10-30 merges (#4454, #4457, #4461). Recorded minified = measured.
     limit: "42.71 KB",
     // An Errored heals when the last reader that caught its error is disposed (#4373, #4384, 2026-10-28, re-recorded over next @ cbc0eebd): recorded minified 123,191 -> 123,249 B (+58 B minified over next's record), measured locally (linux) at 41,899 B brotli. Recorded minified = measured; CI re-bases.
     // Boundary readers keyed by the source they wait on (#4373), with enterLane's tail folded into one else-chain as an offset (-29 B on lane pages) (#4384, 2026-10-28, re-recorded over next @ 1b32ff2e): recorded minified 123,203 -> 123,224 B (+21 B minified over next's record), measured locally (linux) at 41,966 B brotli. Recorded minified = measured; CI re-bases.
     // latest() read inline and through a memo show the same screen (#4284 through a memo; a plain write beside an async memo), 2026-10-29, over next @ 7ebd4a32: recorded minified 123,224 -> 123,733 B (+403 B minified over next), measured locally (linux) at 42,119 B brotli (+169 B over next). A render effect a verdict memo's change re-runs reads as its verdict reader for that pass (`laneDirty`), a pass that read a staging before the frame had a transaction re-derives once as a verdict reader only if the frame parks, `latest()` of a first load in flight in a verdict lane is loading (also through an identity memo, a derived store and `isPending`), a lane's dissolution leaves such a load and the nodes pending on it uninitialized instead of committing `undefined`, a verdict lane born at a seam is judged at it, a pass born in a staged reader stays the frame's on a verdict-memo read (C4, #4010), a plain write beside `latest()` computes once (the seam re-derives a pre-transaction staged reader only if the frame parks), a verdict reader's plain read of a staging in a transaction only a `latest()` opened is the frame's read, so a memo of `latest()` computes once too (D-22; not a pass with no value yet, D-6), and an error stays the display while the memo it came through re-asks, a Loading fallback behind it included (D-39, async-gen 91501 #1831). recompute's CONFIG_VERDICT clear now sits behind the lane engine: -21 B minified on every floor. Correctness; the maintainer: "only flag me if brotli goes more than 20kb" (2026-10-29). Cap unchanged; recorded minified = measured.
-    capMinified: 125450,
+    capMinified: 125478,
     alias: pageAlias
   },
   {
@@ -6126,8 +6135,9 @@ module.exports = [
     // 125,416 B; CI-measured at 41,147 B (125,416 B minified). Lower only: cap
     // at measured + 10 B rounded up to 0.01 KB; recorded minified never raised.
     // Batch re-record (2026-10-30, next @ 32163a9, size job 123956613767): 41.16 KB -> 41.23 KB, recorded minified 125,416 -> 125,435 B, measured in CI at 41,215 B brotli. Growth is the 2026-10-30 merges (#4424, #4436, #4416, #4442); #4416's truncation sweep is the +19 B minified on the hydrating scenarios. Cap at measured + 10 B rounded up to 0.01 KB where over; recorded minified = measured.
+    // Batch re-record (2026-10-30, over next @ 563b6b0): cap unchanged, recorded minified 125,435 -> 125,468 B (+33 B), measured locally (linux) at 41,178 B brotli. Growth is the 2026-10-30 merges (#4454, #4457, #4461). Recorded minified = measured.
     limit: "41.23 KB",
-    capMinified: 125435,
+    capMinified: 125468,
     alias: pageAlias,
     conditions: solidConditions,
     compile: { hydratable: true }
@@ -6316,11 +6326,12 @@ module.exports = [
     // Batch re-record (2026-10-30, next @ 32163a9, size job 123956613767): 48.31 KB -> 48.38 KB, recorded minified 142,528 -> 142,547 B, measured in CI at 48,368 B brotli. Growth is the 2026-10-30 merges (#4424, #4436, #4416, #4442); #4416's truncation sweep is the +19 B minified on the hydrating scenarios. Cap at measured + 10 B rounded up to 0.01 KB where over; recorded minified = measured.
     // A held memo's parked reader re-derives at the seam (#4439, 2026-10-30, over next @ b249ad96): 48.38 KB -> 48.42 KB, recorded minified 142,547 -> 142,631 B (+84 B), measured locally (linux) at 48,402 B brotli. `laneSeams` also re-derives a reader whose pass read a held node, so `isPending` of a memo parked behind a held one turns true. Correctness. Cap at measured + 10 B rounded up to 0.01 KB; recorded minified = measured.
     // A probe beside `latest()` outside any Loading no longer loops on a refetch (F-6, D-23; 2026-10-30, over next @ 7135a77a): 48.42 KB -> 48.44 KB, recorded minified 142,631 -> 142,706 B (+75 B), measured locally (linux) at 48,421 B brotli. `pendingVerdict` remembers the transaction a `latest` read of an unheld flight opened, and a probe in it joins the verdict lane without asking to re-run at its landing (the re-run re-opened it every flush). Correctness. Cap at measured + 10 B rounded up to 0.01 KB; recorded minified = measured.
+    // Batch re-record (2026-10-30, over next @ 563b6b0): cap unchanged, recorded minified 142,706 -> 142,735 B (+29 B), measured locally (linux) at 48,365 B brotli. Growth is the 2026-10-30 merges (#4454, #4457, #4461). Recorded minified = measured.
     limit: "48.44 KB",
     // An Errored heals when the last reader that caught its error is disposed (#4373, #4384, 2026-10-28, re-recorded over next @ cbc0eebd): recorded minified 140,451 -> 140,509 B (+58 B minified over next's record), measured locally (linux) at 47,516 B brotli. Recorded minified = measured; CI re-bases.
     // Boundary readers keyed by the source they wait on (#4373), with enterLane's tail folded into one else-chain as an offset (-29 B on lane pages) (#4384, 2026-10-28, re-recorded over next @ 1b32ff2e): recorded minified 140,463 -> 140,485 B (+22 B minified over next's record), measured locally (linux) at 47,547 B brotli. Recorded minified = measured; CI re-bases.
     // latest() read inline and through a memo show the same screen (#4284 through a memo; a plain write beside an async memo), 2026-10-29, over next @ 7ebd4a32: recorded minified 140,485 -> 140,983 B (+405 B minified over next), measured locally (linux) at 47,722 B brotli (+162 B over next). A render effect a verdict memo's change re-runs reads as its verdict reader for that pass (`laneDirty`), a pass that read a staging before the frame had a transaction re-derives once as a verdict reader only if the frame parks, `latest()` of a first load in flight in a verdict lane is loading (also through an identity memo, a derived store and `isPending`), a lane's dissolution leaves such a load and the nodes pending on it uninitialized instead of committing `undefined`, a verdict lane born at a seam is judged at it, a pass born in a staged reader stays the frame's on a verdict-memo read (C4, #4010), a plain write beside `latest()` computes once (the seam re-derives a pre-transaction staged reader only if the frame parks), a verdict reader's plain read of a staging in a transaction only a `latest()` opened is the frame's read, so a memo of `latest()` computes once too (D-22; not a pass with no value yet, D-6), and an error stays the display while the memo it came through re-asks, a Loading fallback behind it included (D-39, async-gen 91501 #1831). recompute's CONFIG_VERDICT clear now sits behind the lane engine: -21 B minified on every floor. Correctness; the maintainer: "only flag me if brotli goes more than 20kb" (2026-10-29). Cap unchanged; recorded minified = measured.
-    capMinified: 142706,
+    capMinified: 142735,
     alias: pageAlias,
     conditions: solidConditions,
     compile: { hydratable: true }