diff --git a/src/web/public/app.js b/src/web/public/app.js
index 4952d29d..788b0939 100644
--- a/src/web/public/app.js
+++ b/src/web/public/app.js
@@ -13,6 +13,7 @@ class ClaudemanApp {
     this.respawnTimers = {}; // Track timed respawn timers
     this.terminalBuffers = new Map(); // Store terminal content per session
     this.editingSessionId = null; // Session being edited in options modal
+    this.pendingCloseSessionId = null; // Session pending close confirmation
 
     // Terminal write batching
     this.pendingWrites = '';
@@ -472,7 +473,7 @@ class ClaudemanApp {
           <span class="tab-name" data-session-id="${id}">${this.escapeHtml(name)}</span>
           ${hasRunningTasks ? `<span class="tab-badge" onclick="event.stopPropagation(); app.toggleTaskPanel()">${taskStats.running}</span>` : ''}
           <span class="tab-gear" onclick="event.stopPropagation(); app.openSessionOptions('${id}')" title="Session options">&#x2699;</span>
-          <span class="tab-close" onclick="event.stopPropagation(); app.closeSession('${id}')">&times;</span>
+          <span class="tab-close" onclick="event.stopPropagation(); app.requestCloseSession('${id}')">&times;</span>
         </div>
       `;
     }
@@ -568,6 +569,35 @@ class ClaudemanApp {
     }
   }
 
+  // Request confirmation before closing a session
+  requestCloseSession(sessionId) {
+    const session = this.sessions.get(sessionId);
+    if (!session) return;
+
+    this.pendingCloseSessionId = sessionId;
+
+    // Show session name in confirmation dialog
+    const name = this.getSessionName(session);
+    const sessionNameEl = document.getElementById('closeConfirmSessionName');
+    sessionNameEl.textContent = name;
+
+    document.getElementById('closeConfirmModal').classList.add('active');
+  }
+
+  cancelCloseSession() {
+    this.pendingCloseSessionId = null;
+    document.getElementById('closeConfirmModal').classList.remove('active');
+  }
+
+  async confirmCloseSession() {
+    const sessionId = this.pendingCloseSessionId;
+    this.cancelCloseSession();
+
+    if (sessionId) {
+      await this.closeSession(sessionId);
+    }
+  }
+
   nextSession() {
     const ids = Array.from(this.sessions.keys());
     if (ids.length <= 1) return;
@@ -1379,6 +1409,7 @@ class ClaudemanApp {
   closeAllPanels() {
     this.closeSessionOptions();
     this.closeAppSettings();
+    this.cancelCloseSession();
     document.getElementById('respawnPanel').classList.remove('open');
     document.getElementById('newSessionPanel').classList.remove('open');
     document.getElementById('taskPanel').classList.remove('open');
diff --git a/src/web/public/index.html b/src/web/public/index.html
index 9b2066a7..dfa2a5ab 100644
--- a/src/web/public/index.html
+++ b/src/web/public/index.html
@@ -273,6 +273,25 @@
       </div>
     </div>
 
+    <!-- Close Session Confirmation Modal -->
+    <div class="modal" id="closeConfirmModal">
+      <div class="modal-backdrop" onclick="app.cancelCloseSession()"></div>
+      <div class="modal-content modal-sm">
+        <div class="modal-header">
+          <h3>Close Session?</h3>
+          <button class="modal-close" onclick="app.cancelCloseSession()">&times;</button>
+        </div>
+        <div class="modal-body">
+          <p class="modal-warning-text">This will terminate the Claude session and any running processes.</p>
+          <p class="modal-session-name" id="closeConfirmSessionName"></p>
+        </div>
+        <div class="form-actions">
+          <button class="btn-toolbar" onclick="app.cancelCloseSession()">Cancel</button>
+          <button class="btn-toolbar btn-danger" onclick="app.confirmCloseSession()">Close Session</button>
+        </div>
+      </div>
+    </div>
+
     <!-- App Settings Modal -->
     <div class="modal" id="appSettingsModal">
       <div class="modal-backdrop" onclick="app.closeAppSettings()"></div>
diff --git a/src/web/public/styles.css b/src/web/public/styles.css
index 20c2d4f5..8cb4c701 100644
--- a/src/web/public/styles.css
+++ b/src/web/public/styles.css
@@ -745,6 +745,22 @@ body {
   max-width: 320px;
 }
 
+.modal-warning-text {
+  color: var(--text-dim);
+  font-size: 0.85rem;
+  margin-bottom: 0.5rem;
+}
+
+.modal-session-name {
+  font-family: 'SF Mono', Monaco, monospace;
+  font-size: 0.8rem;
+  color: var(--accent-hover);
+  background: var(--bg-input);
+  padding: 0.5rem 0.75rem;
+  border-radius: 4px;
+  border: 1px solid var(--border);
+}
+
 .session-dir-display {
   padding: 0.5rem 0.75rem;
   background: var(--bg-input);