diff --git a/packages/contracts/src/navigation.ts b/packages/contracts/src/navigation.ts
index 3d5c6c1d62..fca6600b99 100644
--- a/packages/contracts/src/navigation.ts
+++ b/packages/contracts/src/navigation.ts
@@ -52,7 +52,7 @@ export type OrientationCommandResult = {
  * `fold` — `{ action: 'fold', pose, hingeAngleDegrees, screen?, message }`.
  *
  * Unlike `orientation`, there is no unconfirmed variant: the Apple owner reads the hinge angle
- * back from CoreDevice after pressing the Device Hub pose control, and reports a pose only when
+ * back from CoreDevice after the simulator HID helper sends the pose, and reports a pose only when
  * that reading agrees with the request. `screen` names the panel the device lights afterwards and
  * that panel's native point size (ADR 0025); it is the panel's geometry, not the app viewport, so a
  * caller must take a fresh snapshot before placing a tap.
diff --git a/packages/platform-android/src/runtime.test.ts b/packages/platform-android/src/runtime.test.ts
index bb0d47b805..011afb24f9 100644
--- a/packages/platform-android/src/runtime.test.ts
+++ b/packages/platform-android/src/runtime.test.ts
@@ -225,7 +225,8 @@ test('Android refuses the fold fact on every kind', async () => {
       createAndroidPlatformRuntime(androidNavigationHost()),
       runtimeDevice,
     );
-    // A foldable hinge is posed through Xcode Device Hub; no adb surface poses one.
+    // fold drives only foldable iPhone simulators; the Android emulator posture control is not
+    // driven yet.
     expect(binding.facts.operations.setFoldPose).toEqual({
       available: false,
       reason: 'unsupported-platform-leaf',
diff --git a/packages/platform-web/src/runtime.test.ts b/packages/platform-web/src/runtime.test.ts
index f25bccc885..5ba868a300 100644
--- a/packages/platform-web/src/runtime.test.ts
+++ b/packages/platform-web/src/runtime.test.ts
@@ -214,7 +214,8 @@ test('clipboard, the app switcher, app events, settings and alerts carry no web
     'appSwitcher',
     // The Action Button is iPhone/iPad hardware with no web analogue at all.
     'actionButton',
-    // A foldable hinge is posed through Xcode Device Hub; the web target has none.
+    // A foldable hinge is posed through the host's iOS simulator HID helper; the web target has
+    // none.
     'setFoldPose',
     'triggerAppEvent',
     // R58/R59: the retired `settings` and `alert` descriptors declared no web leaf either.
diff --git a/packages/provider-limrun/src/interaction-operations.ts b/packages/provider-limrun/src/interaction-operations.ts
index 1c5796bc30..18a0acb9da 100644
--- a/packages/provider-limrun/src/interaction-operations.ts
+++ b/packages/provider-limrun/src/interaction-operations.ts
@@ -341,11 +341,14 @@ export function limrunSystemButtonOperationFacts(
   });
 }
 
-/** A foldable hinge is posed through the host's Xcode Device Hub, which no Limrun session has. */
+/**
+ * `fold` sends a HID hinge event through a helper the daemon host spawns inside one of its own iOS
+ * simulators with `simctl spawn`; a Limrun session's device is not a host simulator.
+ */
 export const LIMRUN_FOLD_UNAVAILABLE = Object.freeze({
   available: false,
   reason: 'unsupported-provider-mode',
-  hint: 'fold poses a foldable iPhone simulator through Xcode Device Hub on the host, which no Limrun session exposes.',
+  hint: 'fold runs a HID helper through simctl spawn inside a foldable iPhone simulator on the daemon host; a Limrun session has no such simulator.',
 } as const);
 
 /** The fold refusal both Limrun legs share. */
diff --git a/packages/provider-webdriver/src/platform-runtime.ts b/packages/provider-webdriver/src/platform-runtime.ts
index 5302e3d955..ae377d493b 100644
--- a/packages/provider-webdriver/src/platform-runtime.ts
+++ b/packages/provider-webdriver/src/platform-runtime.ts
@@ -245,7 +245,7 @@ const systemButtonUnavailable = Object.freeze({
 const foldUnavailable = Object.freeze({
   available: false,
   reason: 'unsupported-provider-mode',
-  hint: 'fold poses a foldable iPhone simulator through Xcode Device Hub, which no WebDriver backend exposes.',
+  hint: 'fold runs a HID helper through simctl spawn inside a foldable iPhone simulator on the daemon host; a WebDriver backend has no such simulator.',
 } as const);
 
 /**
diff --git a/test/integration/provider-scenarios/provider-device-runtime.fixtures.ts b/test/integration/provider-scenarios/provider-device-runtime.fixtures.ts
index 06a4785f7e..e5a6fbe438 100644
--- a/test/integration/provider-scenarios/provider-device-runtime.fixtures.ts
+++ b/test/integration/provider-scenarios/provider-device-runtime.fixtures.ts
@@ -270,7 +270,8 @@ function providerScenarioRuntimeFacts(
       // hardware exists on the iPhone/iPad leaf only, so the fixture reads the same kernel rule the
       // Apple owner's fact reads instead of restating it (#2699).
       actionButton: hasAppleActionButton(device) ? fakeProviderAvailable : fakeProviderUnavailable,
-      // A provider session has no Device Hub on the host, so no fixture leg poses a hinge.
+      // A provider session has no host simulator for the fold HID helper, so no fixture leg poses
+      // a hinge.
       setFoldPose: fakeProviderUnavailable,
       // Provider-owned iOS keyboard actions ride the same runner transport the shared interactor
       // does (#1297): a fixture scenario that can drive the interactor at all can drive these.
diff --git a/test/integration/provider-scenarios/provider-ios-runner-transport.test.ts b/test/integration/provider-scenarios/provider-ios-runner-transport.test.ts
index a9094e6f01..d8619d861d 100644
--- a/test/integration/provider-scenarios/provider-ios-runner-transport.test.ts
+++ b/test/integration/provider-scenarios/provider-ios-runner-transport.test.ts
@@ -132,9 +132,9 @@ test('provider transport carries the Action Button press without an app activati
   });
 });
 
-// A hinge pose is posed through Xcode Device Hub on the host, which a provider-owned device has no
-// access to, so the provider fixture states the refusal cell and admission refuses before anything
-// reaches the transport: no runner call, no local Device Hub press.
+// A hinge pose is sent by a HID helper the host spawns inside a local iOS simulator, which a
+// provider-owned device is not, so the provider fixture states the refusal cell and admission
+// refuses before anything reaches the transport.
 test('provider transport refuses a fold before any runner traffic', async () => {
   await withProviderScenarioResource(createInteractorSeamWorld, async ({ daemon, calls }) => {
     const lease = await allocateLease(daemon);