diff --git a/apps/editor/src/NoteList.tsx b/apps/editor/src/NoteList.tsx
index ae0ed609..61dcd936 100644
--- a/apps/editor/src/NoteList.tsx
+++ b/apps/editor/src/NoteList.tsx
@@ -66,7 +66,7 @@ export function NoteList({ entries, noteCount, fileCount, types, selectedPath, s
   const virtualizer = useVirtualizer({ count: entries.length, getScrollElement: () => scrollRef.current, estimateSize: () => 76, overscan: 8 });
   const typeIcons = useMemo(() => new Map(types.map((type) => [type.name, collectionTypeIcon(type)])), [types]);
   return <section className="note-list-pane" aria-label="Notes and files">
-    <header className="list-header"><button className="mobile-collections icon-button" aria-label="Collections" onClick={onCollections}><PanelLeft aria-hidden="true" /></button>{leadingActions}<div><h1>{collectionName}</h1><p aria-live="polite">{browserCountLabel(noteCount, fileCount, entries.length, loading, structureLoading, filesLoading, contentIndexing, contentLoaded, total, contentTotal, Boolean(search.trim()), sort)}{contentError && <button className="list-retry" title={contentError} onClick={onRetryContent}>Retry search</button>}{fileError && <button className="list-retry" title={fileError} onClick={onRetryFiles}>Retry files</button>}</p></div>{trailingActions}<button className="icon-button new-note" aria-label="New note" onClick={onCreate}><FilePlus2 aria-hidden="true" /></button></header>
+    <header className="list-header"><button className="mobile-collections icon-button" aria-label="Collections" onClick={onCollections}><PanelLeft aria-hidden="true" /></button>{leadingActions}<div className="list-header-title"><h1>{collectionName}</h1><p aria-live="polite">{browserCountLabel(noteCount, fileCount, entries.length, loading, structureLoading, filesLoading, contentIndexing, contentLoaded, total, contentTotal, Boolean(search.trim()), sort)}{contentError && <button className="list-retry" title={contentError} onClick={onRetryContent}>Retry search</button>}{fileError && <button className="list-retry" title={fileError} onClick={onRetryFiles}>Retry files</button>}</p></div><div className="list-header-actions">{trailingActions}<button className="icon-button new-note" aria-label="New note" onClick={onCreate}><FilePlus2 aria-hidden="true" /></button></div></header>
     <div className="note-list-controls">
       <div className="search-field"><Search aria-hidden="true" /><label className="sr-only" htmlFor="note-search">Search notes and files</label><input id="note-search" value={search} onChange={(event) => onSearch(event.target.value)} placeholder="Search" />{search ? <button aria-label="Clear search" onClick={() => onSearch("")}><X aria-hidden="true" /></button> : <button className="quick-open-trigger" aria-label="Quick open" title="Quick open" onClick={onQuickOpen}><kbd>{navigator.platform.includes("Mac") ? "⌘" : "Ctrl"} P</kbd></button>}</div>
       <NoteListViewOptions sort={sort} scopeLabel={scopeLabel} onSort={onSort} onClearScope={onClearScope} />
diff --git a/apps/editor/src/TypeBrowser.tsx b/apps/editor/src/TypeBrowser.tsx
index a7894fe0..4d527d1c 100644
--- a/apps/editor/src/TypeBrowser.tsx
+++ b/apps/editor/src/TypeBrowser.tsx
@@ -113,9 +113,8 @@ export function TypeList({ types, selectedName, packsSelected = false, leadingAc
     <header className="list-header">
       <button className="mobile-collections icon-button" aria-label="Collections" onClick={onCollections}><PanelLeft aria-hidden="true" /></button>
       {leadingActions}
-      <div><h1>Types</h1><p>{types.length} {types.length === 1 ? "definition" : "definitions"}</p></div>
-      {trailingActions}
-      <button className="icon-button new-type-button" aria-label="New type" title="New type" onClick={onCreate}><FilePlus2 aria-hidden="true" /></button>
+      <div className="list-header-title"><h1>Types</h1><p>{types.length} {types.length === 1 ? "definition" : "definitions"}</p></div>
+      <div className="list-header-actions">{trailingActions}<button className="icon-button new-type-button" aria-label="New type" title="New type" onClick={onCreate}><FilePlus2 aria-hidden="true" /></button></div>
     </header>
     <label className="search-field">
       <Search aria-hidden="true" /><span className="sr-only">Search types</span>
diff --git a/apps/editor/src/styles.css b/apps/editor/src/styles.css
index 6c16b5cb..d78a2264 100644
--- a/apps/editor/src/styles.css
+++ b/apps/editor/src/styles.css
@@ -1374,9 +1374,18 @@ select:focus-visible {
   padding: 14px 14px 10px 18px;
 }
 
-.list-header > div {
+.list-header-title {
+  width: 0;
   min-width: 0;
-  flex: 1;
+  flex: 1 1 0;
+  overflow: hidden;
+}
+
+.list-header-actions {
+  display: flex;
+  flex: 0 0 auto;
+  align-items: center;
+  gap: 10px;
 }
 
 .list-header h1 {
@@ -1390,9 +1399,12 @@ select:focus-visible {
 }
 
 .list-header p {
+  overflow: hidden;
   margin: 2px 0 0;
   color: var(--faint);
   font-size: 11px;
+  text-overflow: ellipsis;
+  white-space: nowrap;
 }
 
 .list-header .list-retry {
diff --git a/apps/editor/tests/editor.spec.ts b/apps/editor/tests/editor.spec.ts
index 17ed17e1..0a0cc817 100644
--- a/apps/editor/tests/editor.spec.ts
+++ b/apps/editor/tests/editor.spec.ts
@@ -1124,6 +1124,56 @@ test("resizes, collapses, and restores the desktop sidebars", async ({ page }) =
   expect(restored).toBeCloseTo(after, 0);
 });
 
+test("keeps note header actions reachable beside a long collection name", async ({ page }) => {
+  await page.setViewportSize({ width: 1440, height: 760 });
+  await page.goto("?demo=12");
+
+  for (const listWidth of [304, 240]) {
+    await page.evaluate((width) => {
+      localStorage.setItem("mdbase-editor:layout", JSON.stringify({
+        collectionWidth: 176,
+        listWidth: width,
+        inspectorWidth: 340,
+        collectionCollapsed: false,
+        listCollapsed: false
+      }));
+    }, listWidth);
+    await page.reload();
+
+    const heading = page.locator(".list-header h1");
+    await expect(heading).toHaveText("Writing");
+    await heading.evaluate((element) => {
+      element.textContent = "mdbase Reader literature fixture with a deliberately long collection name";
+    });
+
+    const hideNotes = page.getByRole("button", { name: "Hide notes sidebar" });
+    const newNote = page.getByRole("button", { name: "New note" });
+    await expect(hideNotes).toBeVisible();
+    await expect(newNote).toBeVisible();
+
+    const geometry = await page.locator(".list-header").evaluate((header) => {
+      const title = header.querySelector("h1");
+      const hide = header.querySelector<HTMLElement>('[aria-label="Hide notes sidebar"]');
+      const create = header.querySelector<HTMLElement>('[aria-label="New note"]');
+      const pane = header.closest(".note-list-pane");
+      if (!title || !hide || !create || !pane) throw new Error("Note header controls are missing.");
+      return {
+        title: title.getBoundingClientRect().toJSON(),
+        hide: hide.getBoundingClientRect().toJSON(),
+        create: create.getBoundingClientRect().toJSON(),
+        pane: pane.getBoundingClientRect().toJSON()
+      };
+    });
+    expect(geometry.title.right).toBeLessThanOrEqual(geometry.hide.left);
+    expect(geometry.hide.right).toBeLessThanOrEqual(geometry.create.left);
+    expect(geometry.create.right).toBeLessThanOrEqual(geometry.pane.right);
+
+    await newNote.click();
+    await expect(page.getByRole("button", { name: "Create note" })).toBeVisible();
+    await page.locator(".new-note-actions").getByRole("button", { name: "Cancel" }).click();
+  }
+});
+
 test("keeps the current note inspector open and resizable between note switches", async ({ page }) => {
   await page.setViewportSize({ width: 1440, height: 760 });
   await page.goto("?demo=12");