diff --git a/docs/PROJECT_MAP.md b/docs/PROJECT_MAP.md
index 0ab7773..780033c 100644
--- a/docs/PROJECT_MAP.md
+++ b/docs/PROJECT_MAP.md
@@ -404,7 +404,7 @@ The build menu along the bottom: categories, piece tiles and their icons.
 - functions: pieceIcon, catOf, selectBuildCat, cycleBuildCat, buildVariantChips, renderBuildBar, setupBuildBar
 - variables: BUILD_CATS, BUILD_ORDER, PIECE_ICONS, lastBuildKey, lastBuildMenu
 
-### src/ui/selection.js (242 lines)
+### src/ui/selection.js (243 lines)
 The selected tool and piece: R / Q / E, drill width, filter picker, the selection card, the bag panel.
 - functions: pieceUsesWall, setDrillWidth, tuneUnderCursor, cycleItem, cycleWall, rotate, toggleBlow, pickFilterUnderCursor, toggleFilterMat, setBrush, pieceV, pieceExtra, filterChoices, matList, filterParts, filterSentence, applyFilterRun, openFilterPicker, openWallPicker, filterBlockAt, chipCost, pieceCostNow, renderSelCard, renderBag
 - variables: lastBagKey
diff --git a/docs/agent-log.md b/docs/agent-log.md
index d3a96a7..0a56712 100644
--- a/docs/agent-log.md
+++ b/docs/agent-log.md
@@ -4,6 +4,14 @@ What agents have done, newest first. Add an entry for every piece of work: the d
 note or request it was for, what changed, the files touched, the tests run, and anything left
 open or not verified. Keep each entry short; the git history has the details.
 
+## 2026-10-24: t20 follow-up: bag hint and Clear stay visible (Claude Code)
+
+- The hint and Clear were inside the scrolling `#baglist`, so a long Ctrl list scrolled them away.
+  They now render into a new `#bagfoot` under the list (`src/shell.html`, `renderBag`); Clear is a
+  full-width, highlighted "Clear selection" button (`style.css`).
+- `test/play.py`: a long Ctrl list scrolls while the hint and a full-width Clear stay visible.
+  Screenshots `shots/t20c-ctrl{,-900}.png`. Tests: `run_all.py --browser` all passed (play.py 232).
+
 ## 2026-10-24: t20 follow-ups: deselect when blown out, Ctrl + wheel, Ctrl+click (Claude Code)
 
 - Blowing the last of a selected material removes it from the selection (`toolTick`); materials
diff --git a/src/shell.html b/src/shell.html
index 82cbaeb..b6b66fb 100644
--- a/src/shell.html
+++ b/src/shell.html
@@ -25,6 +25,7 @@
       </div>
       <div class="bar" id="bagbar"><i></i></div>
       <div id="baglist"></div>
+      <div id="bagfoot"></div>
     </div>
   </div>
   <div class="corner bl">
diff --git a/src/styles/style.css b/src/styles/style.css
index a4598ec..560d880 100644
--- a/src/styles/style.css
+++ b/src/styles/style.css
@@ -180,11 +180,14 @@ table.mt td.dip { color: var(--melt); }
 #baglist .tag { flex: none; padding: 0 3px; color: var(--patina); font-size: 11px; }
 #selcard .vacrow { flex-wrap: wrap; gap: 4px; }
 #selcard .vacrow .sw { width: 9px; height: 9px; }
-#baglist .baghint { color: var(--ash-dim); font-size: 0.82em; padding: 4px 4px 0; }
+#bagfoot:empty { display: none; }
+#bagfoot { border-top: 1px solid var(--soot-3); margin-top: 4px; }
+#bagfoot .baghint { color: var(--ash-dim); font-size: 0.82em; padding: 4px 4px 0; }
 .bagsep { margin: 6px 4px 2px; padding-top: 5px; border-top: 1px solid var(--ash-dim); color: var(--ash-dim); font-size: 0.75em; text-transform: uppercase; letter-spacing: 0.08em; }
 #baglist .bagrow.none { opacity: 0.55; }
 #baglist .bagrow.none:hover { opacity: 1; }
-#baglist .bagclear { display: inline-flex; margin-left: 5px; padding: 1px 5px; background: transparent; color: var(--ash-dim); border: 1px solid var(--soot-3); font-size: inherit; }
+#bagfoot .bagclear { display: block; width: 100%; margin-top: 6px; padding: 4px 8px; background: rgba(92, 186, 166, 0.12); color: var(--bone); border: 1px solid var(--patina-dim); border-radius: 3px; font-weight: 600; cursor: pointer; }
+#bagfoot .bagclear:hover { background: rgba(92, 186, 166, 0.24); border-color: var(--patina); }
 #bagtoggle { background: none; border: none; color: var(--ash); cursor: pointer; padding: 0 2px; }
 
 #info { padding: 7px 10px; min-width: calc(220px * var(--ui)); max-width: min(360px, 60vw); display: flex; flex-direction: column; gap: 2px; font-size: 0.92em; }
diff --git a/src/ui/selection.js b/src/ui/selection.js
index e62a7ff..a5c07b4 100644
--- a/src/ui/selection.js
+++ b/src/ui/selection.js
@@ -210,6 +210,16 @@ function renderBag() {
   if (key === lastBagKey) return;
   lastBagKey = key;
   const box = $('baglist'); box.innerHTML = '';
+  // the hint and Clear sit under the list, outside its scroll, so they never scroll away
+  const foot = $('bagfoot'); foot.innerHTML = '';
+  if (t === 'vacuum') {
+    foot.appendChild(el('div', { class: 'baghint' }, "Click: select only this · Ctrl+click: add to the selection (hold Ctrl to see everything you've found) · Q/E: next"));
+    if (GAME.blow.size) {
+      const clear = el('button', { class: 'bagclear', 'data-bag-clear': '' }, 'Clear selection');
+      clear.onclick = () => { GAME.blow.clear(); lastBagKey = ''; hudDirty = true; playSfx('ui'); };
+      foot.appendChild(clear);
+    }
+  }
   if (!l.length) { box.appendChild(el('div', { class: 'empty' }, 'Empty. Break rock with the Drill, then use the Vacuum.')); return; }
   for (const m of l) {
     if (m === missing[0]) box.appendChild(el('div', { class: 'bagsep' }, 'Not in bag'));
@@ -230,13 +240,4 @@ function renderBag() {
     row.appendChild(b);
     box.appendChild(row);
   }
-  if (t === 'vacuum') {
-    const hint = el('div', { class: 'baghint' }, "Click: select only this · Ctrl+click: add to the selection (hold Ctrl to see everything you've found) · Q/E: next");
-    if (GAME.blow.size) {
-      const clear = el('button', { class: 'bagclear', 'data-bag-clear': '' }, 'Clear');
-      clear.onclick = () => { GAME.blow.clear(); lastBagKey = ''; hudDirty = true; playSfx('ui'); };
-      hint.appendChild(clear);
-    }
-    box.appendChild(hint);
-  }
 }
diff --git a/tasks/t20.md b/tasks/t20.md
index b016617..fd5c971 100644
--- a/tasks/t20.md
+++ b/tasks/t20.md
@@ -14,7 +14,7 @@ report: |
   Hold Ctrl and the bag also lists everything you've found, under "Not in bag", so you can select
   materials you don't have yet. Blowing out the last of a material deselects it (one picked
   before you had any stays selected). Ctrl + wheel scrolls the bag list. Clear the
-  selection with the Clear button in the bag, by clicking the only selected row, or gamepad B.
+  selection with the Clear selection button under the bag list, by clicking the only selected row, or gamepad B.
   Shift takes or blows everything.
   To check: hold Ctrl, Ctrl+click two materials you don't have, then sweep a mixed pile (only
   those come up); blow a coal + ore mix until the coal runs out (ore keeps going, coal is
@@ -39,3 +39,4 @@ I dont like the current tool. I want to completely rethink how to pick up and dr
 - [x] An easy way to clear the selection (a Clear button, clicking the only selected row, gamepad B)
 - [x] Ctrl + wheel over the bag scrolls the list instead of zooming the page
 - [x] Ctrl+click adds to the selection on setups where the click arrives without the Ctrl flag
+- [x] The bag hint and a wider, more visible Clear selection button stay visible below the list instead of scrolling away
diff --git a/test/play.py b/test/play.py
index ef52dcd..c7552fd 100644
--- a/test/play.py
+++ b/test/play.py
@@ -368,7 +368,7 @@ with sync_playwright() as p:
     pg.locator('#baglist .pick').filter(has_text='Copper ore').click(button='right'); settle(80)
     check('right click on a bag row leaves the selection alone', ev('GAME.blow.size === 1 && GAME.blow.has(COAL)'))
     check('bag rows have no pickup tag', '⬇' not in pg.inner_text('#baglist'))
-    check('bag hint describes the selection', "Click: select only this · Ctrl+click: add to the selection (hold Ctrl to see everything you've found) · Q/E: next" in pg.locator('#baglist .baghint').inner_text())
+    check('bag hint describes the selection', "Click: select only this · Ctrl+click: add to the selection (hold Ctrl to see everything you've found) · Q/E: next" in pg.locator('#bagfoot .baghint').inner_text())
     ore_row.click(modifiers=['Control']); settle(80)
     check('vacuum bag has no pick or blow buttons', pg.locator('#baglist [data-pick], #baglist [data-blow]').count() == 0)
     pg.mouse.move(mx_, my_); pg.mouse.down(button='right'); settle(500); pg.mouse.up(button='right'); settle(600)
@@ -401,6 +401,11 @@ with sync_playwright() as p:
     check('Meta release hides unselected missing materials', ev('!GAME.ctrl'))
     ev("window.dispatchEvent(new KeyboardEvent('keydown', {key:'Control', ctrlKey:true})); window.dispatchEvent(new Event('blur')); renderBag()")
     check('blur clears the modifier', ev('!GAME.ctrl'))
+    r = ev("""(() => { const old = seen.slice(), sel = GAME.blow; for (const m of BAG_ORDER) seen[m] = 1; GAME.blow = new Set([COAL]); GAME.ctrl = true; lastBagKey = ''; renderBag();
+      const b = $('baglist'), f = $('bagfoot'), h = f.querySelector('.baghint'), c = f.querySelector('.bagclear'), fr = f.getBoundingClientRect(), br = b.getBoundingClientRect();
+      const out = [b.scrollHeight > b.clientHeight, !b.contains(h) && !b.contains(c), fr.top >= br.bottom - 1 && fr.bottom <= innerHeight, c.getBoundingClientRect().width >= f.clientWidth - 2, c.textContent];
+      seen.set(old); GAME.blow = sel; GAME.ctrl = false; lastBagKey = ''; renderBag(); return out; })()""")
+    check('a long Ctrl list scrolls while the hint and a full-width Clear stay visible below it', r[0] and r[1] and r[2] and r[3] and r[4] == 'Clear selection', r)
     # Ctrl + wheel over the bag scrolls the list instead of zooming the page
     r = ev("""(() => { const b = $('baglist'), mh = b.style.maxHeight; b.style.maxHeight = '40px'; b.scrollTop = 0;
       const w = new WheelEvent('wheel', { deltaY: 30, ctrlKey: true, bubbles: true, cancelable: true }); b.querySelector('.pick').dispatchEvent(w);