diff --git a/README.md b/README.md
index 2304e3f..07af8e9 100644
--- a/README.md
+++ b/README.md
@@ -88,8 +88,9 @@ identity keeps the same sandbox container across updates.
 `.gitea/workflows/build.yml` builds universal macOS artifacts for pushes and pull
 requests to `main`. The repository-scoped `mac-mini-meetingnotes` runner uses the
 `macos-arm64` label. Smoke tests use a separate CI bundle identifier and temporary
-launch preferences, an internal-volume staging directory, and Launch Services
-so the GUI app runs in the logged-in Mac session. Release jobs import the original Developer ID certificate
+launch preferences and an internal-volume staging directory. Keychain services
+follow the bundle identifier, so CI never reads production credentials; the smoke
+test removes its isolated API token before and after each launch. Release jobs import the original Developer ID certificate
 into a temporary keychain and keep the original Sparkle signing key in Gitea
 Actions secrets. They never publish from a development branch.
 
diff --git a/meetingnotes/Managers/KeychainHelper.swift b/meetingnotes/Managers/KeychainHelper.swift
index 30db02b..244156c 100644
--- a/meetingnotes/Managers/KeychainHelper.swift
+++ b/meetingnotes/Managers/KeychainHelper.swift
@@ -8,7 +8,7 @@ import Security
 class KeychainHelper {
     static let shared = KeychainHelper()
     
-    private let serviceName = "net.jamesbone.meetingnotes"
+    private let serviceName = Bundle.main.bundleIdentifier ?? "net.jamesbone.meetingnotes"
     
     private init() {}
     
diff --git a/scripts/smoke_test_api.py b/scripts/smoke_test_api.py
index b30e5f3..a17bb6c 100644
--- a/scripts/smoke_test_api.py
+++ b/scripts/smoke_test_api.py
@@ -1,8 +1,7 @@
 #!/usr/bin/env python3
 """Check the CI app's unauthenticated API without changing saved preferences."""
 import json
-import os
-import signal
+import plistlib
 import socket
 import subprocess
 import sys
@@ -19,23 +18,27 @@ with tempfile.TemporaryDirectory(prefix="smoke-", dir=cache) as directory:
     staged = Path(directory) / "Meetingnotes.app"
     subprocess.run(["ditto", sys.argv[1], str(staged)], check=True)
     app = staged / "Contents/MacOS/Meetingnotes"
+    with (staged / "Contents/Info.plist").open("rb") as info_file:
+        bundle_id = plistlib.load(info_file)["CFBundleIdentifier"]
+    assert bundle_id == "net.jamesbone.meetingnotes.ci", "Smoke tests require the isolated CI app"
+
+    def clear_test_token():
+        result = subprocess.run(
+            ["security", "delete-generic-password", "-s", bundle_id, "-a", "muteDeckAPIToken"],
+            capture_output=True, timeout=10,
+        )
+        if result.returncode not in (0, 44):  # 44: item does not exist
+            raise RuntimeError("Could not clear the CI Keychain token")
+
+    clear_test_token()
     with socket.socket() as listener:
         listener.bind(("127.0.0.1", 0))
         port = listener.getsockname()[1]
-    with tempfile.NamedTemporaryFile() as log:
+    with tempfile.TemporaryFile() as log:
         process = subprocess.Popen(
-            ["open", "-n", "-W", "-g", "-a", str(staged), "--stdout", log.name, "--stderr", log.name, "--args", "-ApplePersistenceIgnoreState", "YES", "-muteDeckAPIEnabled", "YES", "-muteDeckAPIPort", str(port), "-hasCompletedOnboarding", "YES", "-hasAcceptedTerms", "YES", "-SUEnableAutomaticChecks", "NO"],
+            [str(app), "-muteDeckAPIEnabled", "YES", "-muteDeckAPIPort", str(port), "-hasCompletedOnboarding", "YES", "-hasAcceptedTerms", "YES", "-SUEnableAutomaticChecks", "NO"],
             stdout=log, stderr=subprocess.STDOUT,
         )
-        def app_pid():
-            # The unique staged path identifies only this test's app instance.
-            listing = subprocess.check_output(["ps", "-axo", "pid=,command="], text=True)
-            for line in listing.splitlines():
-                fields = line.strip().split(None, 1)
-                if len(fields) == 2 and fields[1].startswith(str(app) + " "):
-                    return int(fields[0])
-            return None
-
         try:
             for attempt in range(30):
                 if process.poll() is not None:
@@ -57,27 +60,18 @@ with tempfile.TemporaryDirectory(prefix="smoke-", dir=cache) as directory:
                 raise RuntimeError("Recording status allowed an unauthenticated request")
             print("Local API readiness and authentication checks passed")
         except Exception:
-            pid = app_pid()
-            if pid is not None:
-                sample = subprocess.run(["sample", str(pid), "1", "1"], capture_output=True, text=True, timeout=10)
-                print(sample.stdout[:14000], file=sys.stderr)
+            if process.poll() is None:
+                sample = subprocess.run(["sample", str(process.pid), "1", "1"], capture_output=True, text=True, timeout=10)
+                print(sample.stdout.split("Binary Images:")[0], file=sys.stderr)
             log.seek(0)
             print(log.read().decode(errors="replace")[-8000:], file=sys.stderr)
             raise
         finally:
-            pid = app_pid()
-            if pid is not None:
-                try:
-                    os.kill(pid, signal.SIGTERM)
-                except ProcessLookupError:
-                    pass
-            try:
-                process.wait(timeout=10)
-            except subprocess.TimeoutExpired:
-                if app_pid() == pid and pid is not None:
-                    try:
-                        os.kill(pid, signal.SIGKILL)
-                    except ProcessLookupError:
-                        pass
+            if process.poll() is None:
                 process.terminate()
-                process.wait(timeout=10)
+                try:
+                    process.wait(timeout=10)
+                except subprocess.TimeoutExpired:
+                    process.kill()
+                    process.wait()
+            clear_test_token()