diff --git a/src/application/app-preferences.ts b/src/application/app-preferences.ts
index 1124b2c6..f79e5b4d 100644
--- a/src/application/app-preferences.ts
+++ b/src/application/app-preferences.ts
@@ -8,9 +8,8 @@
 // Narrow scope (plan review): this service owns ONLY the persist half of
 // each preference. Every write site except `toggleTheme` already mutates its
 // own state field itself (splitters.ts sets `ctx.state.sidebarPx` before
-// calling `ctx.save(...)`; dashboard.ts sets `state.dashLayout`/`dashCols`
-// before calling `app.prefs.save(...)` directly — #276 Phase 5 deleted the
-// flat `App.savePref` delegate; app.ts's `setResultRowLimit` sets
+// calling `ctx.save(...)`; #276 Phase 5 deleted the flat `App.savePref`
+// delegate; app.ts's `setResultRowLimit` sets
 // `state.resultRowLimit` first) — so `save(name, value)` is a pure typed
 // persist call, no state slice needed. `toggleTheme` is the one exception
 // (issue ruling): the state flip AND the persist happen together here: the
@@ -29,7 +28,7 @@ import { KEYS } from '../state.js';
  *  untouched by this service. */
 export type PreferenceKey =
   | 'theme' | 'sidebarPx' | 'editorPct' | 'sideSplitPct' | 'cellDrawerPx'
-  | 'sidePanel' | 'resultRowLimit' | 'dashLayout' | 'dashCols'
+  | 'sidePanel' | 'resultRowLimit'
   // #313 — the documentation pane's own persisted resize width, a sibling of
   // cellDrawerPx (never shared with it — see splitters.ts's 'docPane' axis).
   | 'docPanePx';
@@ -48,7 +47,7 @@ export interface AppPreferencesDeps {
 export interface AppPreferences {
   /** Generic persist-only setter — the exact `(name, value)` shape app.ts's
    *  former `App.savePref` delegate used to expose (#276 Phase 5 deleted it;
-   *  dashboard.ts/saved-history.ts/splitters.ts's callers call `app.prefs.save`
+   *  saved-history.ts/splitters.ts's callers call `app.prefs.save`
    *  directly now). This IS the service's write API: per-key typed setters
    *  were considered and dropped (review) — every real call site already
    *  holds a validated `{name, value}` pair, so a per-key surface would ship
diff --git a/src/core/dashboard.ts b/src/core/dashboard.ts
index 46963aef..4a37fff7 100644
--- a/src/core/dashboard.ts
+++ b/src/core/dashboard.ts
@@ -7,66 +7,6 @@
 // tiles stream through the shared `app.exec.executeRead` seam as of #193/#276, so the
 // former `FORMAT JSON` → array-rows transform and its SQL prep were retired.)
 
-/**
- * Dashboard layout modes (#149 D2, #184): `arrange` = uniform multi-column grid
- * (default, column count from `dashCols`), `report` = single centered column
- * (1100px) with taller tiles, `wide` = one tile per row filling the full
- * available dashboard width (#184, Grafana-style). Persisted per browser
- * (`asb:dashLayout`); `wide` extends the key rather than migrating it, so
- * existing arrange/report selections stay valid. The four *effective* views the
- * UI exposes are derived by `activeDashboardView` below (wide, report, and
- * arrange split into its 2- and 3-column cases).
- */
-export const DASH_LAYOUTS: readonly string[] = ['arrange', 'report', 'wide'];
-
-/** Snap a persisted layout to a known mode, defaulting to `arrange`. Pure. */
-export function normalizeDashLayout(v?: string | null): string {
-  return v != null && DASH_LAYOUTS.includes(v) ? v : 'arrange';
-}
-
-/** Column-count options for Arrange mode (persisted `asb:dashCols`). */
-export const DASH_COLS: readonly number[] = [2, 3];
-
-/** Snap a persisted column count to 2 or 3, defaulting to 3. Pure. */
-export function normalizeDashCols(n?: number | null): number {
-  return n != null && DASH_COLS.includes(n) ? n : 3;
-}
-
-// The two persisted keys `activeDashboardView`/`dashboardViewSelection` read
-// and write — kept structural (rather than importing state.js's full State
-// type) since only these two fields are ever touched here.
-interface DashLayoutState {
-  dashLayout?: string;
-  dashCols?: number;
-}
-
-/**
- * The four-way layout switcher's active value (#184), derived from the two
- * persisted keys so a single control can drive them: `wide` and `report` map
- * straight through; `arrange` splits into `columns-2`/`columns-3` by `dashCols`.
- * Pure — the UI's segmented control reads this to mark exactly one button
- * active, and `dashboardViewSelection` is its inverse (view → state changes).
- */
-export function activeDashboardView(state: DashLayoutState): 'wide' | 'report' | 'columns-2' | 'columns-3' {
-  if (state.dashLayout === 'wide') return 'wide';
-  if (state.dashLayout === 'report') return 'report';
-  return state.dashCols === 2 ? 'columns-2' : 'columns-3';
-}
-
-/**
- * Inverse of `activeDashboardView` (#184): the `{dashLayout, dashCols?}` a
- * picked switcher value implies. `dashCols` is present only for the column
- * views (the caller persists just the keys that actually changed, so choosing a
- * column count never rewrites `dashLayout` when it is already `arrange`, and
- * vice-versa). An unrecognized view falls back to the default `columns-3`.
- */
-export function dashboardViewSelection(view?: string | null): DashLayoutState {
-  if (view === 'wide') return { dashLayout: 'wide' };
-  if (view === 'report') return { dashLayout: 'report' };
-  if (view === 'columns-2') return { dashLayout: 'arrange', dashCols: 2 };
-  return { dashLayout: 'arrange', dashCols: 3 };
-}
-
 /**
  * Rows kept per dashboard tile (#149 D9). Preserves the 5000-point line/area
  * chart cap (`CHART_ROW_CAPS` in `src/core/chart-data.js`) — a fetch cap below
diff --git a/src/core/schema-cards.ts b/src/core/schema-cards.ts
index bcba77d5..6c5e588d 100644
--- a/src/core/schema-cards.ts
+++ b/src/core/schema-cards.ts
@@ -141,14 +141,11 @@ function numberish(v: number | string | undefined): number | null {
  * they belong in the detail drawer, not in card geometry. `comment` (trimmed,
  * untruncated) isn't drawn as its own row — like the plain inline graph, it's a
  * hover-only tooltip on the whole card, so it never affects the card's own layout.
- * `_legacySkipIndexes` is never read — a bygone skip-index-rows argument some
- * callers still pass; accepted and ignored so it can never affect the model.
  */
 export function buildCardModel(
   node?: CardGraphNode | null,
   tableRow?: CardTableRow | null,
   columns?: SchemaCardColumnRow[] | null,
-  _legacySkipIndexes?: unknown,
 ): CardModel {
   const n = node || {};
   const tr = tableRow || {};
diff --git a/src/core/spec-draft.ts b/src/core/spec-draft.ts
index d7eb0731..059bf4d8 100644
--- a/src/core/spec-draft.ts
+++ b/src/core/spec-draft.ts
@@ -5,9 +5,6 @@
 import { cloneJson } from './saved-query.js';
 import {
   createQuerySpecValidationService as _createQuerySpecValidationService,
-  // Kept for parity with the pre-conversion module — unused here, same as
-  // before (spec-schema.js's own export, consumed directly by other modules).
-  querySpecSchemaService,
 } from './spec-schema.js';
 import type { QuerySpecV1 } from '../generated/json-schema.types.js';
 import { hasSameTimeRangeParameter } from './query-time-range.js';
diff --git a/src/net/ch-client.ts b/src/net/ch-client.ts
index d2574a7a..50e2825c 100644
--- a/src/net/ch-client.ts
+++ b/src/net/ch-client.ts
@@ -892,8 +892,6 @@ export async function exportQuery(ctx: ChCtx, sql: string, opts: ExportQueryOpti
  *   (e.g. multiquery SELECTs pass their own cap + session_id)
  * @param onLine  called per parsed stream object in streaming mode
  * @param onChunk  called once per read chunk in streaming mode
- * @param onRaw  unused by `runQuery` itself — the caller reads `.raw` off the
- *   returned result instead; kept for parity with the original docstring
  */
 export interface RunQueryOptions {
   format?: string;
@@ -903,7 +901,6 @@ export interface RunQueryOptions {
   params?: Record<string, string | number>;
   onLine?: (line: StreamLine) => void;
   onChunk?: () => void;
-  onRaw?: (text: string) => void;
 }
 
 /** `runQuery`'s result: a query error, a raw-mode body, or a completed stream. */
@@ -916,12 +913,12 @@ export interface RunQueryResult {
 /**
  * Run a query in streaming mode (JSONStringsEachRowWithProgress) or raw mode
  * (TSV/JSON). `onLine(parsedObj)` is called per stream object in streaming
- * mode; `onRaw(text)` once for raw mode. Returns { error } or { raw } shape via
+ * mode. Returns { error } or { raw } shape via
  * the result object the caller passes in `apply`.
  *
  * @param ctx
  * @param sql
- * @param o  { format, signal, resultRowLimit, params, onLine(json), onChunk(), onRaw(text) }
+ * @param o  { format, signal, resultRowLimit, params, onLine(json), onChunk() }
  *           `resultRowLimit` caps a normal result server-side (max_result_rows +
  *           result_overflow_mode); `params` are extra query-string options that ride
  *           alongside query_id (e.g. multiquery SELECTs pass their own cap + session_id).
diff --git a/src/state.ts b/src/state.ts
index 4b56cb13..150de7f6 100644
--- a/src/state.ts
+++ b/src/state.ts
@@ -9,7 +9,6 @@ import {
 } from './core/saved-query.js';
 import type { QueryRoot } from './core/saved-query.js';
 import { decodeStoredSavedQueries as decodeStoredSavedQueriesUntyped } from './core/library-codec.js';
-import { normalizeDashLayout, normalizeDashCols } from './core/dashboard.js';
 import {
   loadJSON as loadJSONUntyped, saveJSON as saveJSONUntyped,
   loadStr as loadStrUntyped,
@@ -351,8 +350,6 @@ export interface AppState {
   theme: string;
   density: string;
   resultRowLimit: number;
-  dashLayout: string;
-  dashCols: number;
   sidebarPx: number;
   editorPct: number;
   sideSplitPct: number;
@@ -495,8 +492,6 @@ export const KEYS = {
    *  on purpose: the concept it names is still live, it is not a Dashboard
    *  variable, and this is a persisted key besides. */
   filterActive: 'asb:filterActive',
-  dashLayout: 'asb:dashLayout',
-  dashCols: 'asb:dashCols',
   varRecent: 'asb:varRecent',
   varRecentDisabled: 'asb:varRecentDisabled',
   /** Isolated per-dashboard Dashboard-variable persistence (#303 Option B) — a
@@ -634,11 +629,6 @@ export function createState(read: StateReader = { loadJSON, loadStr }): AppState
     // One persisted preference, default 500; a non-option stored value snaps
     // back to the default so the selector always reflects a real choice.
     resultRowLimit: normalizeRowLimit(parseInt(read.loadStr(KEYS.resultRowLimit, '500'), 10)),
-    // Dashboard layout prefs (#149 D2), persisted per browser. Plain (non-signal)
-    // like theme/density — the standalone dashboard page reads them at build time
-    // and mutates + re-saves on the Arrange/Report + column-count controls.
-    dashLayout: normalizeDashLayout(read.loadStr(KEYS.dashLayout, 'arrange')),
-    dashCols: normalizeDashCols(parseInt(read.loadStr(KEYS.dashCols, '3'), 10)),
     sidebarPx: clamp(parseInt(read.loadStr(KEYS.sidebarPx, '248'), 10), 180, 420),
     editorPct: num(KEYS.editorPct, 45, 15, 85),
     sideSplitPct: num(KEYS.sideSplitPct, 58, 25, 85),
diff --git a/src/styles.css b/src/styles.css
index d2426aee..6d7a4a88 100644
--- a/src/styles.css
+++ b/src/styles.css
@@ -371,7 +371,7 @@ body {
    the UA defaults converts "forgot to style a heading" from a visible bug into a
    quiet inherit, and forces any real step up the ramp to be deliberate. Rules
    that DO size a heading (.md-view, .modal-card, .schema-detail, .dash-notfound-title,
-   .docs-name, .detached-title, .section-label, .login-h1) all out-specify this. */
+   .docs-name, .detached-title, .section-label) all out-specify this. */
 h1, h2, h3, h4, h5, h6 {
   font-size: inherit;
   font-weight: var(--fw-semibold);
@@ -456,8 +456,6 @@ h1, h2, h3, h4, h5, h6 {
 .login-brand-text { display: flex; flex-direction: column; line-height: var(--lh-tight); }
 .login-brand-name { font-size: var(--text-headline); font-weight: var(--fw-semibold); color: var(--fg); }
 .login-brand-sub { font-size: var(--text-label); color: var(--fg-faint); }
-.login-h1 { font-size: var(--text-doc-h1); font-weight: var(--fw-semibold); letter-spacing: -.3px; color: var(--fg); margin-bottom: 4px; }
-.login-sub { font-size: var(--text-body); color: var(--fg-mute); margin-bottom: 20px; line-height: var(--lh-body); }
 
 /* SSO section */
 .login-sso { display: flex; flex-direction: column; gap: 8px; }
@@ -579,13 +577,6 @@ h1, h2, h3, h4, h5, h6 {
   flex-shrink: 0;
 }
 .logo-name { font-size: var(--text-body); font-weight: var(--fw-semibold); color: var(--fg); }
-.env-chip {
-  font-size: var(--text-label); color: var(--fg-faint);
-  padding: 2px 6px;
-  background: var(--bg-chip);
-  border-radius: var(--r-sm);
-  font-family: var(--mono);
-}
 .conn-status {
   display: flex; align-items: center; gap: 6px;
   font-size: var(--text-label); color: var(--fg-mute);
@@ -607,11 +598,6 @@ h1, h2, h3, h4, h5, h6 {
   flex-shrink: 0;
 }
 .conn-status.dim::before { background: var(--fg-faint); box-shadow: none; }
-.user-email {
-  font-size: var(--text-label); color: var(--fg-mute);
-  font-family: var(--mono);
-  max-width: 220px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
-}
 .hd-btn {
   width: 26px; height: 26px;
   border: none; background: transparent;
@@ -659,7 +645,6 @@ h1, h2, h3, h4, h5, h6 {
 }
 
 /* ------------ header File menu + library title ------------ */
-.hd-divider { width: 1px; height: 18px; background: var(--border); flex-shrink: 0; }
 .hd-file-btn {
   display: flex; align-items: center; gap: 5px; height: 26px; padding: 0 8px;
   border: none; border-radius: var(--r-sm); background: transparent; color: var(--fg-mute);
@@ -733,10 +718,6 @@ h1, h2, h3, h4, h5, h6 {
   margin-top: 4px; padding: 8px 12px; border-top: 1px solid var(--border-faint);
   font-size: var(--text-micro); color: var(--fg-faint); font-family: var(--mono);
 }
-/* Variable history (#171): a `.fm-item`-styled <label> so the whole row
-   toggles the checkbox, matching the rest of the File menu's row rhythm. */
-.fm-toggle { cursor: pointer; }
-.fm-checkbox { accent-color: var(--accent); flex-shrink: 0; cursor: pointer; }
 /* Replace / New confirm dialog */
 .fm-dialog-backdrop {
   position: fixed; inset: 0; z-index: 130; background: var(--scrim);
@@ -751,7 +732,6 @@ h1, h2, h3, h4, h5, h6 {
 .fm-dialog-title { font-size: var(--text-headline); font-weight: var(--fw-semibold); color: var(--fg); margin-bottom: 6px; }
 .fm-dialog-body { font-size: var(--text-body); color: var(--fg-mute); line-height: var(--lh-body); margin-bottom: 18px; }
 .fm-dialog-body b { color: var(--fg); }
-.fm-mono { color: var(--fg); font-family: var(--mono); }
 .fm-dialog-actions { display: flex; justify-content: flex-end; gap: 8px; }
 .fm-dialog-cancel, .fm-dialog-confirm {
   height: 30px; padding: 0 14px; border-radius: var(--r-sm); font-family: inherit;
@@ -967,21 +947,6 @@ h1, h2, h3, h4, h5, h6 {
 .saved-row:hover .sv-act { display: inline-flex; }
 .sv-act:hover { color: var(--fg); background: var(--bg-hover); }
 .side-count { color: var(--fg-faint); font-weight: var(--fw-regular); }
-/* Export/Import row at the end of the Saved panel. margin-top:auto sinks it to
-   the bottom when the list is short, but it scrolls away with a long list (not
-   sticky) — no need to keep it on screen once there's plenty to scroll. */
-.saved-actions {
-  margin-top: auto; flex-shrink: 0;
-  display: flex; gap: 6px; padding: 6px 10px;
-  border-top: 1px solid var(--border); background: var(--bg-editor);
-}
-.sv-io {
-  flex: 1; height: 24px; border: 1px solid var(--border); border-radius: var(--r-sm);
-  background: transparent; color: var(--fg-mute); font-size: var(--text-label); font-family: inherit;
-  cursor: pointer; display: flex; align-items: center; justify-content: center; gap: 5px;
-}
-.sv-io:hover:not([disabled]) { background: var(--bg-hover); color: var(--fg); }
-.sv-io[disabled] { opacity: .45; cursor: not-allowed; }
 .history-row {
   position: relative;
   padding: 8px 10px; cursor: pointer; user-select: none;
@@ -2073,13 +2038,7 @@ body.detached-tab .graph-overlay-panel {
   box-shadow: var(--ring-error);
 }
 
-/* #360 source-backed Dashboard variable transport states. The field is also
-   `disabled`; these mark WHY, so a benign 'waiting' (dashed, with a
-   "Waiting for: …" note) or a 'stale'/refreshing field (dimmed) reads
-   differently from a real 'error' (red) at a glance. */
 .var-input.is-error { border-color: var(--error-bd); background: var(--error-bg); }
-.var-input.is-waiting { border-style: dashed; }
-.var-input.is-stale { opacity: 0.55; font-style: italic; }
 .var-field-note { grid-column: 2; font-size: var(--text-label); color: var(--fg-mute); white-space: nowrap; }
 /* Relative-time preset combobox (#169): the accessible dropdown-on-focus +
    type-to-filter control for date-like {name:Type} variables (#174 §1) —
@@ -2190,8 +2149,8 @@ body.detached-tab .graph-overlay-panel {
    field; the popover is its own `position:fixed` panel, the same
    escape-the-scrolling-strip trick as .var-combo-list/.file-menu.
    #447 deleted this block with the curated filter model; it came back with the
-   control, minus the per-field source-status rules (.is-waiting/.is-stale) that
-   belonged to the Filter-source machine rather than to the control. */
+   control, without the Filter-source state machine that belonged to the prior
+   curated-filter implementation. */
 .ms-field { grid-column: 2; display: inline-flex; }
 .ms-trigger {
   display: inline-flex; align-items: center;
@@ -2760,7 +2719,6 @@ table.res-table tbody tr:hover td.idx { background: var(--bg-hover); }
 .docs-categories { display: flex; flex-wrap: wrap; gap: 6px; }
 .docs-chip { font-size: var(--text-label); padding: 3px 9px; border-radius: var(--r-pill); background: var(--bg-chip); color: var(--fg-mute); }
 .docs-field-label { font-size: var(--text-label); font-weight: var(--fw-semibold); text-transform: uppercase; letter-spacing: .03em; color: var(--fg-faint); margin-bottom: 4px; }
-.docs-field-text { font-size: var(--text-body); color: var(--fg); white-space: pre-wrap; word-break: break-word; }
 .docs-flags { display: flex; gap: 6px; flex-wrap: wrap; }
 .docs-example-code { border: 1px solid var(--border); border-radius: var(--r-md); overflow: hidden; }
 /* #314 phase-2 pane elements */
@@ -3031,11 +2989,9 @@ table.res-table tbody tr:hover td.idx { background: var(--bg-hover); }
    concern (side-by-side suits wide-but-short landscape). The hidden items are
    all decorative or desktop-only; File / theme / user menu remain. */
 @media (max-width: 900px) {
-  .logo-name, .env-chip, .app-header .hd-divider, .hd-hide-mobile { display: none; }
+  .logo-name, .hd-hide-mobile { display: none; }
   .connection-chip .connection-host { display: none; }
   .connection-chip .connection-state { display: inline; }
-  /* Legacy header controls may still opt into hiding a nonessential label. */
-  .hd-hide-mobile-label { display: none; }
   /* Cap the user-menu label so a long local-part (`user ▾`) can't widen the
      header back past the viewport. */
   .hd-btn.user-btn .user-short { max-width: 90px; }
diff --git a/src/ui/app.ts b/src/ui/app.ts
index 24b5ebba..cc7fa66f 100644
--- a/src/ui/app.ts
+++ b/src/ui/app.ts
@@ -224,9 +224,8 @@ export function createApp(env: CreateAppEnv = {}): App {
 
   // --- persistence -------------------------------------------------------
   // The true-preference persist service (#276 Phase 4D) — theme/sidebarPx/
-  // editorPct/sideSplitPct/cellDrawerPx/sidePanel/resultRowLimit/dashLayout/
-  // dashCols, constructible without App/AppState/DOM. Consumers
-  // (dashboard.ts/saved-history.ts/splitters.ts) call `app.prefs.save(name,
+  // editorPct/sideSplitPct/cellDrawerPx/sidePanel/resultRowLimit, constructible
+  // without App/AppState/DOM. Consumers (saved-history.ts/splitters.ts) call `app.prefs.save(name,
   // value)` directly (#276 Phase 5 deleted the flat `App.savePref` delegate);
   // `toggleTheme` below composes `prefs.toggleTheme()` (the state-flip +
   // persist) with its own DOM half.
diff --git a/src/ui/workbench/workbench-shell.ts b/src/ui/workbench/workbench-shell.ts
index 53a342b5..5b569b5a 100644
--- a/src/ui/workbench/workbench-shell.ts
+++ b/src/ui/workbench/workbench-shell.ts
@@ -181,7 +181,7 @@ export function mountWorkbenchShell(deps: WorkbenchShellDeps): () => void {
     e.preventDefault();
     try { actions.showSchemaGraph(JSON.parse(payload)); } catch { /* malformed payload */ }
   });
-  app.dom.editorResultsSplit = h('div', { class: 'row-resize', onmousedown: (e: DragStartEvent) => doStartDrag(e, 'row', dragCtx) });
+  app.dom.editorResultsSplit = h('div', { class: 'row-resize editor-results-split', onmousedown: (e: DragStartEvent) => doStartDrag(e, 'row', dragCtx) });
 
   const workbenchEl = h('div', { class: 'workbench' }, qtabsRow, editorToolbar, app.dom.varStrip, app.dom.editorRegion, app.dom.editorResultsSplit, app.dom.resultsRegion);
   queryHost.appendChild(workbenchEl);
diff --git a/tests/e2e/dashboard-mobile.html b/tests/e2e/dashboard-mobile.html
index 2d2b152c..4fe5df75 100644
--- a/tests/e2e/dashboard-mobile.html
+++ b/tests/e2e/dashboard-mobile.html
@@ -255,9 +255,6 @@
     timeRegion.append(trHeading, trField.el, trSep);
     timeHost.append(timeRegion);
 
-    window.__prefs = { dashLayout: 'report', dashCols: 3 };
-    localStorage.setItem('asb:dashLayout', 'report');
-    localStorage.setItem('asb:dashCols', '3');
     window.__layoutApplyCount = 0;
     window.__setLayout = (mode) => {
       // #321: 'full-width'/'wide' removed — every mode this harness exercises
diff --git a/tests/e2e/dashboard-mobile.spec.js b/tests/e2e/dashboard-mobile.spec.js
index 609e0b27..78877eae 100644
--- a/tests/e2e/dashboard-mobile.spec.js
+++ b/tests/e2e/dashboard-mobile.spec.js
@@ -138,7 +138,7 @@ test.describe('Dashboard mobile layout', () => {
     expect(result).toEqual({ oneRow: true, inside: true, pageOverflow: 0, outside: [] });
   });
 
-  test('visually normalizes every saved layout on mobile and restores desktop CSS on resize', async ({ page }) => {
+  test('visually normalizes every flow preset on mobile and restores desktop CSS on resize', async ({ page }) => {
     await openAt(page, 390);
     // 'wide'/'full-width' removed (#321) — every remaining flow preset still
     // normalizes to one column on mobile.
@@ -153,16 +153,12 @@ test.describe('Dashboard mobile layout', () => {
           width: grid.getBoundingClientRect().width,
           availableWidth: grid.closest('.dash-page').clientWidth,
           tileMinHeight: getComputedStyle(tile).minHeight,
-          prefs: window.__prefs,
-          stored: [localStorage.getItem('asb:dashLayout'), localStorage.getItem('asb:dashCols')],
         };
       });
       expect(layout.columns).toBe(1);
       expect(layout.maxWidth).toBe('none');
       expect(layout.width).toBe(layout.availableWidth);
       expect(layout.tileMinHeight).toBe('300px');
-      expect(layout.prefs).toEqual({ dashLayout: 'report', dashCols: 3 });
-      expect(layout.stored).toEqual(['report', '3']);
     }
 
     await page.evaluate(() => window.__setLayout('report'));
@@ -173,9 +169,8 @@ test.describe('Dashboard mobile layout', () => {
       maxWidth: getComputedStyle(grid).maxWidth,
       tileMinHeight: getComputedStyle(grid.querySelector('.dash-tile')).minHeight,
       applyCount: window.__layoutApplyCount,
-      stored: [localStorage.getItem('asb:dashLayout'), localStorage.getItem('asb:dashCols')],
     }));
-    expect(restored).toEqual({ maxWidth: '1100px', tileMinHeight: '440px', applyCount, stored: ['report', '3'] });
+    expect(restored).toEqual({ maxWidth: '1100px', tileMinHeight: '440px', applyCount });
   });
 
   test('scrolls variables in one row while fixed combobox content escapes clipping', async ({ page }) => {
diff --git a/tests/e2e/tile-open-workbench.spec.js b/tests/e2e/tile-open-workbench.spec.js
index 2971f1b0..795bfdfa 100644
--- a/tests/e2e/tile-open-workbench.spec.js
+++ b/tests/e2e/tile-open-workbench.spec.js
@@ -329,4 +329,7 @@ test('on a phone the bottom nav is the route off a Dashboard, and offers only Ed
   await expect.poll(() => surface(page)).toBe('query');
   // And it landed on the editor panel, not merely on the surface.
   await expect(page.locator('.main-row')).toHaveAttribute('data-mobile-view', 'editor');
+  // The editor/results splitter is present for desktop dragging, but it must not
+  // consume a visible row in the single-pane mobile editor.
+  await expect(page.locator('.editor-results-split')).toBeHidden();
 });
diff --git a/tests/unit/app-preferences.test.ts b/tests/unit/app-preferences.test.ts
index 287772c9..b2d08f90 100644
--- a/tests/unit/app-preferences.test.ts
+++ b/tests/unit/app-preferences.test.ts
@@ -32,8 +32,6 @@ describe('save()', () => {
       ['docPanePx', 420, '420'],
       ['sidePanel', 'history', 'history'],
       ['resultRowLimit', 1000, '1000'],
-      ['dashLayout', 'wide', 'wide'],
-      ['dashCols', 3, '3'],
     ];
     for (const [name, value, expected] of cases) {
       deps.saveStr.mockClear();
diff --git a/tests/unit/app.test.ts b/tests/unit/app.test.ts
index 78ad7372..63eb28df 100644
--- a/tests/unit/app.test.ts
+++ b/tests/unit/app.test.ts
@@ -4262,6 +4262,7 @@ describe('exhaustive controller coverage', () => {
     drag(qs(app.root, '.col-resize'), 'col');
     drag(app.dom.sideSplit!, 'sideRow');
     drag(app.dom.editorResultsSplit!, 'row');
+    expect(app.dom.editorResultsSplit!.classList.contains('editor-results-split')).toBe(true);
     expect(app.state.sidebarPx).toBeDefined();
     // sideRow must resize the schema pane itself, not whichever element happens
     // to be the sidebar's first child (the mobile segmented control sits before
diff --git a/tests/unit/dashboard.test.ts b/tests/unit/dashboard.test.ts
index 5629d9f8..12d37024 100644
--- a/tests/unit/dashboard.test.ts
+++ b/tests/unit/dashboard.test.ts
@@ -1,7 +1,6 @@
 import { describe, it, expect, vi, afterEach, beforeEach, type Mock } from 'vitest';
 import {
-  normalizeDashLayout, normalizeDashCols, DASH_TILE_ROW_CAP, DASH_TILE_BYTE_CAP, DASH_TABLE_DISPLAY_CAP,
-  activeDashboardView, dashboardViewSelection, partitionKpiBands,
+  DASH_TILE_ROW_CAP, DASH_TILE_BYTE_CAP, DASH_TABLE_DISPLAY_CAP, partitionKpiBands,
 } from '../../src/core/dashboard.js';
 import { KEYS } from '../../src/state.js';
 import { VARIABLE_OPTION_CAP } from '../../src/core/variable-options.js';
@@ -61,44 +60,6 @@ describe('DASH_TILE_ROW_CAP', () => {
   });
 });
 
-describe('normalizeDashLayout', () => {
-  it('passes through known modes (incl. wide, #184), defaults everything else to arrange', () => {
-    expect(normalizeDashLayout('arrange')).toBe('arrange');
-    expect(normalizeDashLayout('report')).toBe('report');
-    expect(normalizeDashLayout('wide')).toBe('wide');
-    expect(normalizeDashLayout('grid')).toBe('arrange');
-    expect(normalizeDashLayout(undefined)).toBe('arrange');
-  });
-});
-
-describe('activeDashboardView (#184)', () => {
-  it('maps wide/report straight through and splits arrange by column count', () => {
-    expect(activeDashboardView({ dashLayout: 'wide', dashCols: 3 })).toBe('wide');
-    expect(activeDashboardView({ dashLayout: 'report', dashCols: 3 })).toBe('report');
-    expect(activeDashboardView({ dashLayout: 'arrange', dashCols: 2 })).toBe('columns-2');
-    expect(activeDashboardView({ dashLayout: 'arrange', dashCols: 3 })).toBe('columns-3');
-  });
-});
-
-describe('dashboardViewSelection (#184)', () => {
-  it('is the inverse of activeDashboardView, omitting dashCols for the single-column views', () => {
-    expect(dashboardViewSelection('wide')).toEqual({ dashLayout: 'wide' });
-    expect(dashboardViewSelection('report')).toEqual({ dashLayout: 'report' });
-    expect(dashboardViewSelection('columns-2')).toEqual({ dashLayout: 'arrange', dashCols: 2 });
-    expect(dashboardViewSelection('columns-3')).toEqual({ dashLayout: 'arrange', dashCols: 3 });
-    expect(dashboardViewSelection('nonsense')).toEqual({ dashLayout: 'arrange', dashCols: 3 });
-  });
-});
-
-describe('normalizeDashCols', () => {
-  it('passes through 2/3, defaults everything else to 3', () => {
-    expect(normalizeDashCols(2)).toBe(2);
-    expect(normalizeDashCols(3)).toBe(3);
-    expect(normalizeDashCols(4)).toBe(3);
-    expect(normalizeDashCols(NaN)).toBe(3);
-  });
-});
-
 describe('partitionKpiBands (#240)', () => {
   it('returns one tile item per favorite when none are KPI', () => {
     expect(partitionKpiBands([false, false, false])).toEqual([
diff --git a/tests/unit/schema-cards.test.ts b/tests/unit/schema-cards.test.ts
index 953ca9c6..a1f4d53f 100644
--- a/tests/unit/schema-cards.test.ts
+++ b/tests/unit/schema-cards.test.ts
@@ -47,13 +47,6 @@ describe('buildCardModel', () => {
     const cols: SchemaCardColumnRow[] = [{ name: 'id', type: 'UInt64', position: 1 }];
     const bare = buildCardModel({ label: 'db.t', kind: 'table' }, {}, cols);
     expect((bare as CardModelWithLegacyProbe).skipLine).toBeUndefined();
-    // Passing legacy skip-index rows (a heavily-indexed table) is ignored: the
-    // model — and therefore the card geometry — is byte-identical either way.
-    const idx = Array.from({ length: 20 }, (_, i) => ({ name: 'a_very_long_skip_index_name_' + i, type: 'bloom_filter(0.01)' }));
-    const withIdx = buildCardModel({ label: 'db.t', kind: 'table' }, {}, cols, idx);
-    expect((withIdx as CardModelWithLegacyProbe).skipLine).toBeUndefined();
-    expect(withIdx).toEqual(bare);
-    expect(cardSize(withIdx)).toEqual(cardSize(bare));
   });
   it('degrades to a header-only card for a leaf with no row/columns', () => {
     const leaf = buildCardModel({ id: 'ext:mysql', label: 'mysql', kind: 'external' });
diff --git a/tests/unit/state.test.ts b/tests/unit/state.test.ts
index b26084b5..49f892e4 100644
--- a/tests/unit/state.test.ts
+++ b/tests/unit/state.test.ts
@@ -152,8 +152,6 @@ describe('KEYS — persisted localStorage key names (#459)', () => {
       resultRowLimit: 'asb:resultRowLimit',
       varValues: 'asb:varValues',
       filterActive: 'asb:filterActive',
-      dashLayout: 'asb:dashLayout',
-      dashCols: 'asb:dashCols',
       varRecent: 'asb:varRecent',
       varRecentDisabled: 'asb:varRecentDisabled',
       dashFilters: 'asb:dashFilters',
@@ -211,8 +209,6 @@ describe('createState', () => {
     // real committed id once resolved.
     expect(s.dashboard).toBeNull();
     expect(s.workspaceId).toMatch(/^ws-/);
-    expect(s.dashLayout).toBe('arrange');
-    expect(s.dashCols).toBe(3);
     expect(s.varValues).toEqual({});
     expect(s.filterActive).toEqual({}); // #165: own key, defaults empty
     expect(s.varRecent).toEqual({ version: 1, nextSeq: 1, byName: {} }); // #171: own key, defaults empty
@@ -230,8 +226,6 @@ describe('createState', () => {
       [KEYS.saved]: [{ id: 's1', sql: 'x', name: 'n', starred: true }],
       [KEYS.history]: [{ id: 'h1', sql: 'y', ts: 1, rows: 1, ms: 2 }],
       [KEYS.libraryName]: 'My team queries',
-      [KEYS.dashLayout]: 'report',
-      [KEYS.dashCols]: '2',
       [KEYS.varValues]: { d: 'stale' },
       [KEYS.filterActive]: { d: false },
       [KEYS.varRecent]: { version: 1, nextSeq: 3, byName: { d: [{ value: 'x', seq: 2 }] } },
@@ -239,8 +233,6 @@ describe('createState', () => {
     }));
     expect(s.theme).toBe('light');
     expect(s.libraryName.value).toBe('My team queries');
-    expect(s.dashLayout).toBe('report');
-    expect(s.dashCols).toBe(2);
     expect(s.sidebarPx).toBe(420);
     expect(s.editorPct).toBe(15);
     expect(s.sideSplitPct).toBe(85);
diff --git a/tests/unit/typography-contract.test.js b/tests/unit/typography-contract.test.js
index c0301a1c..58239075 100644
--- a/tests/unit/typography-contract.test.js
+++ b/tests/unit/typography-contract.test.js
@@ -239,7 +239,7 @@ describe('stylesheet uses the tokens', () => {
     // The document ramp exists because reference docs and Markdown panels are prose
     // the user reads. Letting it leak into operable chrome would reintroduce exactly
     // the oversized-shell-typography problem the Compact Scale Rule forbids.
-    const READ = /^\.(md-view|docs-|login-h1)/;
+    const READ = /^\.(md-view|docs-)/;
     for (const token of ['--text-doc-h1', '--text-doc-h2', '--text-doc-h3']) {
       const strayed = sizedBy(token).filter((sel) => !READ.test(sel));
       expect(strayed).toEqual([]);