diff --git a/CHANGELOG.md b/CHANGELOG.md
index e45ae4f5..0fa1c02f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,11 @@
 # Changelog
 
+## [0.15.15.1] - 2026-04-06
+
+### Fixed
+- pair-agent tunnel drops after 15 seconds. The browse server was monitoring its parent process ID and self-terminating when the CLI exited. Now pair-agent sessions disable the parent watchdog so the server and tunnel stay alive.
+- `$B connect` crashes with "domains is not defined". A stray variable reference in the headed-mode status check prevented GStack Browser from initializing properly.
+
 ## [0.15.15.0] - 2026-04-06
 
 Community security wave: 8 PRs from 4 contributors, every fix credited as co-author.
diff --git a/VERSION b/VERSION
index 176efdf1..f53ee8a9 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-0.15.15.0
+0.15.15.1
diff --git a/browse/src/cli.ts b/browse/src/cli.ts
index c4b24b4c..bbd5c733 100644
--- a/browse/src/cli.ts
+++ b/browse/src/cli.ts
@@ -839,6 +839,11 @@ Refs:           After 'snapshot', use @e1, @e2... as selectors:
         BROWSE_PORT: '34567',
         BROWSE_SIDEBAR_CHAT: '1',
       };
+      // If parent explicitly set BROWSE_PARENT_PID=0 (pair-agent disabling
+      // self-termination), pass it through so startServer doesn't override it.
+      if (process.env.BROWSE_PARENT_PID === '0') {
+        serverEnv.BROWSE_PARENT_PID = '0';
+      }
       const newState = await startServer(serverEnv);
 
       // Print connected status
@@ -848,9 +853,7 @@ Refs:           After 'snapshot', use @e1, @e2... as selectors:
           'Content-Type': 'application/json',
           'Authorization': `Bearer ${newState.token}`,
         },
-        body: JSON.stringify({
-      domains,
- command: 'status', args: [] }),
+        body: JSON.stringify({ command: 'status', args: [] }),
         signal: AbortSignal.timeout(5000),
       });
       const status = await resp.text();
@@ -977,7 +980,9 @@ Refs:           After 'snapshot', use @e1, @e2... as selectors:
       const connectProc = Bun.spawn([browseBin, 'connect'], {
         cwd: process.cwd(),
         stdio: ['ignore', 'inherit', 'inherit'],
-        env: process.env,
+        // Disable parent-PID monitoring: pair-agent needs the server to outlive
+        // the connect subprocess. Setting to 0 tells the server not to self-terminate.
+        env: { ...process.env, BROWSE_PARENT_PID: '0' },
       });
       await connectProc.exited;
       // Re-read state after headed mode switch
diff --git a/browse/src/server.ts b/browse/src/server.ts
index df4dccd8..161d079d 100644
--- a/browse/src/server.ts
+++ b/browse/src/server.ts
@@ -929,7 +929,8 @@ async function handleCommandInternal(
   }
 
   // ─── Tab ownership check (for scoped tokens) ──────────────
-  if (tokenInfo && tokenInfo.clientId !== 'root' && (WRITE_COMMANDS.has(command) || tokenInfo.tabPolicy === 'own-only')) {
+  // Skip for newtab — it creates a new tab, doesn't access an existing one.
+  if (command !== 'newtab' && tokenInfo && tokenInfo.clientId !== 'root' && (WRITE_COMMANDS.has(command) || tokenInfo.tabPolicy === 'own-only')) {
     const targetTab = tabId ?? browserManager.getActiveTabId();
     if (!browserManager.checkTabAccess(targetTab, tokenInfo.clientId, { isWrite: WRITE_COMMANDS.has(command), ownOnly: tokenInfo.tabPolicy === 'own-only' })) {
       return {
diff --git a/browse/test/server-auth.test.ts b/browse/test/server-auth.test.ts
index 16bcbf92..dab03437 100644
--- a/browse/test/server-auth.test.ts
+++ b/browse/test/server-auth.test.ts
@@ -277,4 +277,44 @@ describe('Server auth security', () => {
     expect(batchBlock).toContain('tabId: cmd.tabId');
     expect(batchBlock).toContain('handleCommandInternal');
   });
+
+  // ─── Pair-agent regression tests ──────────────────────────
+
+  // Regression: connect command crashed with "domains is not defined" because
+  // a stray `domains,` variable was in the status fetch body (cli.ts:852).
+  test('connect command status fetch body has no undefined variable references', () => {
+    const connectBlock = sliceBetween(CLI_SRC, 'Launching headed Chromium', 'Sidebar agent started');
+    // The status fetch should use a clean JSON body
+    expect(connectBlock).toContain("command: 'status'");
+    // Must NOT contain a bare `domains` reference in the fetch body
+    // (it would be `domains,` on its own line, not part of a key like `domains:`)
+    const bodyMatch = connectBlock.match(/body:\s*JSON\.stringify\(\{([^}]+)\}\)/);
+    expect(bodyMatch).not.toBeNull();
+    if (bodyMatch) {
+      // The body should only contain command and args, no stray variables
+      expect(bodyMatch[1]).not.toMatch(/\bdomains\b/);
+    }
+  });
+
+  // Regression: pair-agent server died 15s after CLI exited because the server
+  // monitored the connect subprocess PID. pair-agent must set BROWSE_PARENT_PID=0
+  // to disable self-termination.
+  test('pair-agent disables parent PID monitoring via BROWSE_PARENT_PID=0', () => {
+    const pairBlock = sliceBetween(CLI_SRC, 'Ensure headed mode', 'handlePairAgent');
+    // The connect subprocess env must override BROWSE_PARENT_PID
+    expect(pairBlock).toContain("BROWSE_PARENT_PID");
+    expect(pairBlock).toContain("'0'");
+    // The connect command must propagate BROWSE_PARENT_PID=0 to serverEnv
+    const connectBlock = sliceBetween(CLI_SRC, 'Launching headed Chromium', 'Sidebar agent started');
+    expect(connectBlock).toContain("BROWSE_PARENT_PID");
+    expect(connectBlock).toContain("serverEnv.BROWSE_PARENT_PID");
+  });
+
+  // Regression: newtab returned 403 for scoped tokens because the tab ownership
+  // check ran before the newtab handler, checking the active tab (owned by root).
+  test('newtab is excluded from tab ownership check', () => {
+    const ownershipBlock = sliceBetween(SERVER_SRC, 'Tab ownership check (for scoped tokens)', 'newtab with ownership for scoped tokens');
+    // The ownership check condition must exclude newtab
+    expect(ownershipBlock).toContain("command !== 'newtab'");
+  });
 });