diff --git a/src/vocalinux/text_injection/text_injector.py b/src/vocalinux/text_injection/text_injector.py
index 2de0d23..6836b9e 100644
--- a/src/vocalinux/text_injection/text_injector.py
+++ b/src/vocalinux/text_injection/text_injector.py
@@ -117,6 +117,14 @@ def _is_niri_session() -> bool:
     return any("niri" in value.lower() for value in desktop_values)
 
 
+#: Logged once when an explicit ibus pin is honoured on niri (spec #16).
+_NIRI_IBUS_PIN_WARNING = (
+    "IBus on niri can report success while text is silently dropped: niri does not "
+    "relay IBus commits to native Wayland windows. The explicit ibus pin is honoured; "
+    "remove it to type directly with wtype or ydotool instead."
+)
+
+
 def _kde_wayland_ibus_hint() -> str:
     """Return the KDE Plasma Wayland IBus setup hint."""
     return (
@@ -989,13 +997,16 @@ class TextInjector:
                 # reports the commit as delivered and the text never arrives.
                 # The other two guards are out of scope for this warning.
                 if force_ibus and not self._wayland_compositor_bridges_ibus():
-                    logger.warning(
-                        "Compositor '%s' does not bridge IBus to native Wayland apps, but an "
-                        "explicit ibus pin overrides that check. Dictation may silently do "
-                        "nothing in native Wayland windows; remove the pin to fall back to "
-                        "wtype/ydotool.",
-                        os.environ.get("XDG_CURRENT_DESKTOP", "unknown"),
-                    )
+                    if _is_niri_session():
+                        logger.warning(_NIRI_IBUS_PIN_WARNING)
+                    else:
+                        logger.warning(
+                            "Compositor '%s' does not bridge IBus to native Wayland apps, but an "
+                            "explicit ibus pin overrides that check. Dictation may silently do "
+                            "nothing in native Wayland windows; remove the pin to fall back to "
+                            "wtype/ydotool.",
+                            os.environ.get("XDG_CURRENT_DESKTOP", "unknown"),
+                        )
                 try:
                     if wayland_scoped_ibus and not ibus_active:
                         logger.info(
diff --git a/tests/test_text_injector_ext.py b/tests/test_text_injector_ext.py
index 98d5518..c083787 100644
--- a/tests/test_text_injector_ext.py
+++ b/tests/test_text_injector_ext.py
@@ -497,6 +497,7 @@ class TestCheckDependencies(unittest.TestCase):
         desktop: str = "Hyprland",
         env: Any = None,
         config_pin: bool = False,
+        ibus_class: Any = None,
     ) -> tuple[list[str], int]:
         """Drive _check_dependencies with an ibus pin; return (logs, bridge_call_count)."""
         from vocalinux.text_injection.text_injector import DesktopEnvironment, TextInjector
@@ -536,7 +537,10 @@ class TestCheckDependencies(unittest.TestCase):
             patch(
                 "vocalinux.text_injection.text_injector.is_ibus_daemon_running", return_value=True
             ),
-            patch("vocalinux.text_injection.text_injector.IBusTextInjector"),
+            patch(
+                "vocalinux.text_injection.text_injector.IBusTextInjector",
+                new=ibus_class if ibus_class is not None else MagicMock(),
+            ),
             patch.object(TextInjector, "_start_ibus_initialization", lambda s: None),
             # shutil.which is patched to claim every tool exists, so without this
             # the real probe shells out to a ydotoold that may not be installed
@@ -595,6 +599,28 @@ class TestCheckDependencies(unittest.TestCase):
             _, call_count = self._run_ibus_pin(bridges=bridges)
             self.assertEqual(call_count, 1, f"bridges={bridges}: expected 1 call, got {call_count}")
 
+    def test_ibus_pin_on_niri_is_honoured_with_one_silent_drop_warning(self):
+        """An explicit IBus pin stays an escape hatch on niri, with one clear warning.
+
+        Both pin sources must construct the IBus injector (the pin is honoured)
+        and log exactly one WARNING saying IBus on niri can report success while
+        text is silently dropped.
+        """
+        for config_pin in (False, True):
+            with self.subTest(config_pin=config_pin):
+                ibus_class = MagicMock()
+                output, _ = self._run_ibus_pin(
+                    bridges=False,
+                    desktop="niri",
+                    config_pin=config_pin,
+                    ibus_class=ibus_class,
+                )
+                ibus_class.assert_called_once()
+                warnings = [line for line in output if line.startswith("WARNING:")]
+                self.assertEqual(len(warnings), 1, f"expected one WARNING, got: {warnings}")
+                self.assertIn("niri", warnings[0])
+                self.assertIn("can report success while text is silently dropped", warnings[0])
+
     def test_ibus_pin_on_x11_does_not_warn(self):
         """The denylist is a Wayland concern; X11 reaches apps through XIM."""
         from vocalinux.text_injection.text_injector import DesktopEnvironment