diff --git a/playground/voyage-playground.html b/playground/voyage-playground.html
index b8f7101..aa8bccc 100644
--- a/playground/voyage-playground.html
+++ b/playground/voyage-playground.html
@@ -555,6 +555,78 @@
     }
     .voyage-fab__badge[hidden] { display: none; }
 
+    /* v4.3 Step 19 — annotation-list (sidebar): filter buttons + ordered list + jumplist count */
+    .voyage-annotation-list {
+      display: flex;
+      flex-direction: column;
+      padding: var(--space-3);
+      border-bottom: 1px solid var(--color-border-subtle);
+    }
+    .voyage-annotation-list__header {
+      display: flex;
+      align-items: center;
+      justify-content: space-between;
+      gap: var(--space-2);
+      margin-bottom: var(--space-2);
+    }
+    .voyage-annotation-list__filter {
+      display: inline-flex;
+      gap: var(--space-1);
+    }
+    .voyage-filter-btn {
+      padding: 0.15rem 0.5rem;
+      border: 1px solid var(--color-border-subtle);
+      background: var(--color-surface);
+      border-radius: var(--radius-sm);
+      cursor: pointer;
+      font-size: var(--font-size-xs);
+    }
+    .voyage-filter-btn[aria-pressed="true"] {
+      background: var(--color-scope-voyage);
+      color: #fff;
+      border-color: var(--color-scope-voyage);
+    }
+    .voyage-annotation-list__count {
+      font-size: var(--font-size-xs);
+      color: var(--color-text-tertiary, var(--color-text-secondary));
+      white-space: nowrap;
+    }
+    .voyage-annotation-list__items {
+      list-style: none;
+      padding: 0;
+      margin: 0;
+      max-height: 30vh;
+      overflow-y: auto;
+    }
+    .voyage-annotation-list__items li {
+      padding: var(--space-2);
+      border-radius: var(--radius-sm);
+      cursor: pointer;
+      font-size: var(--font-size-sm);
+      display: flex;
+      align-items: center;
+      gap: var(--space-2);
+    }
+    .voyage-annotation-list__items li:hover {
+      background: var(--color-bg-soft);
+    }
+    .voyage-annotation-list__items li[data-active="true"] {
+      background: rgba(255, 235, 59, 0.18);
+    }
+    .voyage-annotation-list__items .voyage-jumplist-num {
+      flex: 0 0 auto;
+      width: 1.25rem;
+      height: 1.25rem;
+      border-radius: 50%;
+      background: var(--color-scope-voyage);
+      color: #fff;
+      font-size: 0.7rem;
+      font-weight: 600;
+      display: inline-flex;
+      align-items: center;
+      justify-content: center;
+    }
+
     /* Tabs */
     [role="tablist"].voyage-tabs {
       display: flex;
@@ -816,20 +888,23 @@
     </section>
   </main>
 
-  <!-- Step 10 — sidebar with tabs + critique-card-list -->
+  <!-- v4.3 Step 19 — sidebar-rail (hidden-by-default) with ordered annotation-list,
+       filter (Alle/Åpne/Resolved), and jumplist count "X av N". Toggle via
+       FAB data-action="toggle-sidebar" or ] keyboard shortcut (Step 20). -->
   <aside
     id="voyage-sidebar"
     class="voyage-sidebar"
     aria-label="Annotation drafts sidebar"
-    aria-hidden="false"
+    aria-hidden="true"
   >
     <div class="voyage-sidebar__rail">
       <button
         type="button"
         id="voyage-sidebar-toggle"
         class="voyage-fab"
+        data-action="toggle-sidebar"
         aria-controls="voyage-sidebar"
-        aria-expanded="true"
+        aria-expanded="false"
         aria-label="Skjul/vis annotation-panel"
       >
         <span
@@ -842,6 +917,26 @@
       </button>
     </div>
     <div class="voyage-sidebar__panel">
+      <!-- v4.3 Step 19 — ordered annotation list with filter + jumplist count -->
+      <div class="voyage-annotation-list" aria-label="Ordered annotation list">
+        <div class="voyage-annotation-list__header">
+          <div
+            role="radiogroup"
+            class="voyage-annotation-list__filter"
+            aria-label="Filtrer annotations"
+          >
+            <button type="button" class="voyage-filter-btn" data-filter="all" aria-pressed="true">Alle</button>
+            <button type="button" class="voyage-filter-btn" data-filter="open" aria-pressed="false">Åpne</button>
+            <button type="button" class="voyage-filter-btn" data-filter="resolved" aria-pressed="false">Resolved</button>
+          </div>
+          <div
+            id="voyage-jumplist-count"
+            class="voyage-annotation-list__count"
+            aria-live="polite"
+          >0 av 0</div>
+        </div>
+        <ol id="voyage-jumplist" class="voyage-annotation-list__items"></ol>
+      </div>
       <div role="tablist" class="voyage-tabs" aria-label="Draft og revisjons-faner">
         <button
           type="button"
@@ -2049,12 +2144,13 @@ playground first-run shows a complete round-trip-able artifact.
         return btn;
       }
 
-      // Re-run anchor-badge (Step 18) + gesture-3 wiring after each render.
+      // Re-run anchor-badge (Step 18) + gesture-3 + sidebar list (Step 19) wiring after each render.
       var originalMountRender = mountRender;
       mountRender = function (text) {
         originalMountRender(text);
         injectAnchorBadges();
         ensurePageNoteButton();
+        renderAnnotationList();
       };
 
       // ---- Modal event wiring -------------------------------------------
@@ -2216,16 +2312,83 @@ playground first-run shows a complete round-trip-able artifact.
         }
       }
 
+      // v4.3 Step 19 — current sidebar filter state ('all' | 'open' | 'resolved')
+      var voyageFilterState = 'all';
+
+      function toggleSidebar() {
+        var toggle = $('voyage-sidebar-toggle');
+        var sidebar = $('voyage-sidebar');
+        if (!toggle || !sidebar) return;
+        var hidden = sidebar.getAttribute('aria-hidden') === 'true';
+        sidebar.setAttribute('aria-hidden', hidden ? 'false' : 'true');
+        toggle.setAttribute('aria-expanded', hidden ? 'true' : 'false');
+      }
+
+      // v4.3 Step 19 — render ordered annotation-list inside sidebar.
+      // Item ordering matches the gutter-badge numbering 1..N (sorted by line ASC).
+      // Filter state ('all' | 'open' | 'resolved') controls which items render.
+      // Click a list-item -> scrollIntoView + setActiveAnchor on the matching badge.
+      function renderAnnotationList() {
+        var list = $('voyage-jumplist');
+        var countEl = $('voyage-jumplist-count');
+        if (!list || !countEl) return;
+        var ta = $('voyage-paste-input');
+        var fm = quickParseFrontmatter(ta ? ta.value : '');
+        var key = deriveStorageKey(fm);
+        var drafts = loadDrafts(key);
+        var sorted = (Array.isArray(drafts) ? drafts.slice() : []).sort(function (a, b) {
+          return (Number(a.line) || 0) - (Number(b.line) || 0);
+        });
+        var filtered = sorted.filter(function (d) {
+          if (voyageFilterState === 'all') return true;
+          if (voyageFilterState === 'resolved') return Boolean(d.resolved);
+          return !d.resolved; // 'open'
+        });
+        list.innerHTML = '';
+        for (var i = 0; i < filtered.length; i++) {
+          var d = filtered[i];
+          var origIdx = sorted.indexOf(d);
+          var li = document.createElement('li');
+          li.setAttribute('data-anchor-id', d.id);
+          var num = document.createElement('span');
+          num.className = 'voyage-jumplist-num';
+          num.textContent = String(origIdx + 1);
+          var label = document.createElement('span');
+          label.className = 'voyage-jumplist-label';
+          label.textContent = (d.target_anchor || 'page') + (d.line ? ' · linje ' + d.line : '');
+          li.appendChild(num);
+          li.appendChild(label);
+          (function (anchorId) {
+            li.addEventListener('click', function () {
+              setActiveAnchor(anchorId);
+              var items = list.querySelectorAll('li');
+              for (var k = 0; k < items.length; k++) items[k].removeAttribute('data-active');
+              li.setAttribute('data-active', 'true');
+            });
+          })(d.id);
+          list.appendChild(li);
+        }
+        countEl.textContent = filtered.length + ' av ' + sorted.length;
+      }
+
       function wireSidebar() {
         var toggle = $('voyage-sidebar-toggle');
         var sidebar = $('voyage-sidebar');
         if (toggle && sidebar) {
-          toggle.addEventListener('click', function () {
-            var hidden = sidebar.getAttribute('aria-hidden') === 'true';
-            sidebar.setAttribute('aria-hidden', hidden ? 'false' : 'true');
-            toggle.setAttribute('aria-expanded', hidden ? 'true' : 'false');
-          });
+          toggle.addEventListener('click', toggleSidebar);
         }
+        // Filter buttons (Alle / Åpne / Resolved)
+        document.querySelectorAll('.voyage-filter-btn').forEach(function (btn) {
+          btn.addEventListener('click', function () {
+            var f = btn.getAttribute('data-filter');
+            if (!f) return;
+            voyageFilterState = f;
+            document.querySelectorAll('.voyage-filter-btn').forEach(function (b) {
+              b.setAttribute('aria-pressed', b === btn ? 'true' : 'false');
+            });
+            renderAnnotationList();
+          });
+        });
         var draftsTab = $('voyage-tab-drafts');
         var historyTab = $('voyage-tab-history');
         if (draftsTab) draftsTab.addEventListener('click', function () { selectTab('voyage-tab-drafts'); });
diff --git a/tests/playground/voyage-playground.test.mjs b/tests/playground/voyage-playground.test.mjs
index 1b0d323..55a9581 100644
--- a/tests/playground/voyage-playground.test.mjs
+++ b/tests/playground/voyage-playground.test.mjs
@@ -250,3 +250,32 @@ test('voyage-playground.html declares injectAnchorBadges JS function (v4.3 Step
   const text = readFileSync(HTML, 'utf-8');
   assert.match(text, /function\s+injectAnchorBadges\s*\(\s*\)/, 'injectAnchorBadges() function required');
 });
+
+test('voyage-playground.html declares voyage-sidebar hidden-by-default (v4.3 Step 19)', () => {
+  const text = readFileSync(HTML, 'utf-8');
+  assert.match(text, /id="voyage-sidebar"[\s\S]{0,200}aria-hidden="true"/, 'voyage-sidebar must default aria-hidden="true"');
+});
+
+test('voyage-playground.html declares data-action="toggle-sidebar" on FAB (v4.3 Step 19)', () => {
+  const text = readFileSync(HTML, 'utf-8');
+  assert.match(text, /data-action="toggle-sidebar"/, 'data-action="toggle-sidebar" required on FAB toggle button');
+});
+
+test('voyage-playground.html declares voyage-jumplist + count "X av N" (v4.3 Step 19)', () => {
+  const text = readFileSync(HTML, 'utf-8');
+  assert.match(text, /id="voyage-jumplist"/, 'voyage-jumplist ordered list required');
+  assert.match(text, /id="voyage-jumplist-count"/, 'voyage-jumplist-count container required');
+  assert.match(text, /' av '/, '"X av N" jumplist count format string required in JS');
+});
+
+test('voyage-playground.html declares filter-buttons Alle/Åpne/Resolved (v4.3 Step 19)', () => {
+  const text = readFileSync(HTML, 'utf-8');
+  assert.match(text, /data-filter="all"/, 'filter button data-filter="all" required');
+  assert.match(text, /data-filter="open"/, 'filter button data-filter="open" required');
+  assert.match(text, /data-filter="resolved"/, 'filter button data-filter="resolved" required');
+});
+
+test('voyage-playground.html declares renderAnnotationList JS function (v4.3 Step 19)', () => {
+  const text = readFileSync(HTML, 'utf-8');
+  assert.match(text, /function\s+renderAnnotationList\s*\(\s*\)/, 'renderAnnotationList() function required');
+});