diff --git a/tests/gateway/test_reasoning_command.py b/tests/gateway/test_reasoning_command.py
index e39ed1123d..5f41c7a7cc 100644
--- a/tests/gateway/test_reasoning_command.py
+++ b/tests/gateway/test_reasoning_command.py
@@ -99,6 +99,67 @@ class TestReasoningCommand:
         assert runner._reasoning_config == {"enabled": False}
         assert runner._show_reasoning is True
 
+    @pytest.mark.asyncio
+    async def test_load_show_reasoning_resolves_per_platform(self, tmp_path, monkeypatch):
+        """Per-platform show_reasoning overrides global setting."""
+        hermes_home = tmp_path / "hermes"
+        hermes_home.mkdir()
+        (hermes_home / "config.yaml").write_text(
+            "display:\n"
+            "  show_reasoning: false\n"
+            "  platforms:\n"
+            "    wecom:\n"
+            "      show_reasoning: true\n",
+            encoding="utf-8",
+        )
+        monkeypatch.setattr(gateway_run, "_hermes_home", hermes_home)
+
+        # Per-platform: wecom should pick up the override
+        assert gateway_run.GatewayRunner._load_show_reasoning("wecom") is True
+        # Per-platform: telegram has no override → falls back to global (false)
+        assert gateway_run.GatewayRunner._load_show_reasoning("telegram") is False
+        # No platform key → global (false)
+        assert gateway_run.GatewayRunner._load_show_reasoning("") is False
+
+    @pytest.mark.asyncio
+    async def test_load_show_reasoning_global_fallback(self, tmp_path, monkeypatch):
+        """Global show_reasoning is used when no per-platform override exists."""
+        hermes_home = tmp_path / "hermes"
+        hermes_home.mkdir()
+        (hermes_home / "config.yaml").write_text(
+            "display:\n"
+            "  show_reasoning: true\n",
+            encoding="utf-8",
+        )
+        monkeypatch.setattr(gateway_run, "_hermes_home", hermes_home)
+
+        assert gateway_run.GatewayRunner._load_show_reasoning("wecom") is True
+        assert gateway_run.GatewayRunner._load_show_reasoning("telegram") is True
+        assert gateway_run.GatewayRunner._load_show_reasoning("") is True
+
+    @pytest.mark.asyncio
+    async def test_reasoning_command_per_platform_status(self, tmp_path, monkeypatch):
+        """The /reasoning status display reflects per-platform config."""
+        hermes_home = tmp_path / "hermes"
+        hermes_home.mkdir()
+        (hermes_home / "config.yaml").write_text(
+            "display:\n"
+            "  show_reasoning: false\n"
+            "  platforms:\n"
+            "    wecom:\n"
+            "      show_reasoning: true\n",
+            encoding="utf-8",
+        )
+        monkeypatch.setattr(gateway_run, "_hermes_home", hermes_home)
+
+        runner = _make_runner()
+        runner._reasoning_config = None
+        # Simulate a WeCom message
+        event = _make_event(text="/reasoning", platform=Platform.WECOM)
+        result = await runner._handle_reasoning_command(event)
+
+        assert "**Display:** on ✓" in result
+
     @pytest.mark.asyncio
     async def test_handle_reasoning_command_updates_config_and_cache(self, tmp_path, monkeypatch):
         hermes_home = tmp_path / "hermes"