diff --git a/src/daemon/__tests__/session-selector.test.ts b/src/daemon/__tests__/session-selector.test.ts
index bb9aa0dbb..2c625c0a6 100644
--- a/src/daemon/__tests__/session-selector.test.ts
+++ b/src/daemon/__tests__/session-selector.test.ts
@@ -62,3 +62,23 @@ test('rejects udid selector for android session', () => {
       err.message.includes('--udid=ABC-123'),
   );
 });
+
+test('accepts matching device selector (case-insensitive)', () => {
+  const session = makeSession();
+  assert.doesNotThrow(() =>
+    assertSessionSelectorMatches(session, {
+      device: 'pixel 9',
+    }),
+  );
+});
+
+test('rejects mismatched device selector', () => {
+  const session = makeSession();
+  assert.throws(
+    () => assertSessionSelectorMatches(session, { device: 'thymikee-iphone' }),
+    (err: unknown) =>
+      err instanceof AppError &&
+      err.code === 'INVALID_ARGS' &&
+      err.message.includes('--device=thymikee-iphone'),
+  );
+});
diff --git a/src/daemon/handlers/__tests__/session.test.ts b/src/daemon/handlers/__tests__/session.test.ts
index e4c3e4e50..60ad36032 100644
--- a/src/daemon/handlers/__tests__/session.test.ts
+++ b/src/daemon/handlers/__tests__/session.test.ts
@@ -1049,3 +1049,39 @@ test('replay parses press series flags and passes them to invoke', async () => {
   assert.equal(invoked[0]?.flags?.jitterPx, 3);
   assert.equal(invoked[0]?.flags?.doubleTap, true);
 });
+
+test('replay inherits parent device selectors for each invoked step', async () => {
+  const sessionStore = makeSessionStore();
+  const replayRoot = fs.mkdtempSync(path.join(os.tmpdir(), 'agent-device-replay-parent-selectors-'));
+  const replayPath = path.join(replayRoot, 'selectors.ad');
+  fs.writeFileSync(replayPath, 'open "com.whoop.iphone"\n');
+
+  const invoked: DaemonRequest[] = [];
+  const response = await handleSessionCommands({
+    req: {
+      token: 't',
+      session: 'default',
+      command: 'replay',
+      positionals: [replayPath],
+      flags: {
+        platform: 'ios',
+        device: 'thymikee-iphone',
+        udid: '00008150-001849640CF8401C',
+      },
+    },
+    sessionName: 'default',
+    logPath: path.join(os.tmpdir(), 'daemon.log'),
+    sessionStore,
+    invoke: async (req) => {
+      invoked.push(req);
+      return { ok: true, data: {} };
+    },
+  });
+
+  assert.ok(response);
+  assert.equal(response?.ok, true);
+  assert.equal(invoked.length, 1);
+  assert.equal(invoked[0]?.flags?.platform, 'ios');
+  assert.equal(invoked[0]?.flags?.device, 'thymikee-iphone');
+  assert.equal(invoked[0]?.flags?.udid, '00008150-001849640CF8401C');
+});
diff --git a/src/daemon/handlers/session.ts b/src/daemon/handlers/session.ts
index 53439ed29..695fc7818 100644
--- a/src/daemon/handlers/session.ts
+++ b/src/daemon/handlers/session.ts
@@ -41,6 +41,7 @@ type ReinstallOps = {
 const IOS_APPSTATE_SESSION_REQUIRED_MESSAGE =
   'iOS appstate requires an active session on the target device. Run open first (for example: open --session sim --platform ios --device "<name>" <app>).';
 const BATCH_PARENT_FLAG_KEYS: Array<keyof CommandFlags> = ['platform', 'device', 'udid', 'serial', 'verbose', 'out'];
+const REPLAY_PARENT_FLAG_KEYS: Array<keyof CommandFlags> = ['platform', 'device', 'udid', 'serial', 'verbose', 'out'];
 
 function requireSessionOrExplicitSelector(
   command: string,
@@ -566,7 +567,8 @@ export async function handleSessionCommands(params: {
           session: sessionName,
           command: action.command,
           positionals: action.positionals ?? [],
-          flags: action.flags ?? {},
+          flags: buildReplayActionFlags(req.flags, action.flags),
+          meta: req.meta,
         });
         if (response.ok) continue;
         if (!shouldUpdate) {
@@ -588,7 +590,8 @@ export async function handleSessionCommands(params: {
           session: sessionName,
           command: nextAction.command,
           positionals: nextAction.positionals ?? [],
-          flags: nextAction.flags ?? {},
+          flags: buildReplayActionFlags(req.flags, nextAction.flags),
+          meta: req.meta,
         });
         if (!response.ok) {
           return withReplayFailureContext(response, nextAction, index, resolved);
@@ -807,6 +810,21 @@ function withReplayFailureContext(
     };
 }
 
+function buildReplayActionFlags(
+  parentFlags: CommandFlags | undefined,
+  actionFlags: SessionAction['flags'] | undefined,
+): CommandFlags {
+  const merged: CommandFlags = { ...(actionFlags ?? {}) };
+  const mergedRecord = merged as Record<string, unknown>;
+  const parentRecord = (parentFlags ?? {}) as Record<string, unknown>;
+  for (const key of REPLAY_PARENT_FLAG_KEYS) {
+    if (mergedRecord[key] === undefined && parentRecord[key] !== undefined) {
+      mergedRecord[key] = parentRecord[key];
+    }
+  }
+  return merged;
+}
+
 function formatReplayActionSummary(action: SessionAction): string {
   return formatScriptActionSummary(action);
 }
diff --git a/src/daemon/session-selector.ts b/src/daemon/session-selector.ts
index e5e79eaac..a54640757 100644
--- a/src/daemon/session-selector.ts
+++ b/src/daemon/session-selector.ts
@@ -23,6 +23,10 @@ export function assertSessionSelectorMatches(
     mismatches.push(`--serial=${flags.serial}`);
   }
 
+  if (flags.device && flags.device.trim().toLowerCase() !== device.name.trim().toLowerCase()) {
+    mismatches.push(`--device=${flags.device}`);
+  }
+
   if (mismatches.length === 0) return;
 
   throw new AppError(