diff --git a/src/astrbot_sdk/context.py b/src/astrbot_sdk/context.py
index 16b88fb32..8ad93d92b 100644
--- a/src/astrbot_sdk/context.py
+++ b/src/astrbot_sdk/context.py
@@ -585,13 +585,13 @@ class Context:
     ) -> asyncio.Task[Any]:
         task_desc = str(desc)
 
-        async def _await_future(future: asyncio.Future[Any]) -> Any:
+        async def _wrap_future(future: asyncio.Future[Any]) -> Any:
             return await future
 
         if isinstance(task, asyncio.Task):
             background_task = task
         elif asyncio.isfuture(task):
-            background_task = asyncio.create_task(_await_future(task))
+            background_task = asyncio.create_task(_wrap_future(task))
         elif asyncio.iscoroutine(task):
             background_task = asyncio.create_task(task)
         else:
@@ -609,14 +609,6 @@ class Context:
                 return
             try:
                 done_task.result()
-            except asyncio.CancelledError:
-                debug_logger = getattr(self.logger, "debug", None)
-                if callable(debug_logger):
-                    debug_logger(
-                        "SDK background task cancelled: plugin_id={} desc={}",
-                        self.plugin_id,
-                        task_desc,
-                    )
             except Exception:
                 exception_logger = getattr(self.logger, "exception", None)
                 if callable(exception_logger):
diff --git a/tests_v4/conftest.py b/tests_v4/conftest.py
new file mode 100644
index 000000000..574158965
--- /dev/null
+++ b/tests_v4/conftest.py
@@ -0,0 +1,13 @@
+from __future__ import annotations
+
+import sys
+from pathlib import Path
+
+
+ROOT = Path(__file__).resolve().parents[1]
+SRC = ROOT / "src"
+
+while str(SRC) in sys.path:
+    sys.path.remove(str(SRC))
+
+sys.path.insert(0, str(SRC))
diff --git a/tests_v4/test_context_register_task.py b/tests_v4/test_context_register_task.py
new file mode 100644
index 000000000..667b51fc5
--- /dev/null
+++ b/tests_v4/test_context_register_task.py
@@ -0,0 +1,97 @@
+from __future__ import annotations
+
+import asyncio
+
+import pytest
+
+from astrbot_sdk._testing_support import MockContext
+
+
+class RecordingLogger:
+    def __init__(self) -> None:
+        self.debug_calls: list[tuple[str, str, str]] = []
+        self.exception_calls: list[tuple[str, str, str]] = []
+
+    def debug(self, message: str, plugin_id: str, desc: str) -> None:
+        self.debug_calls.append((message, plugin_id, desc))
+
+    def exception(self, message: str, plugin_id: str, desc: str) -> None:
+        self.exception_calls.append((message, plugin_id, desc))
+
+
+@pytest.mark.asyncio
+async def test_register_task_accepts_coroutine() -> None:
+    ctx = MockContext()
+
+    async def background() -> str:
+        await asyncio.sleep(0)
+        return "done"
+
+    task = await ctx.register_task(background(), "coroutine")
+
+    assert isinstance(task, asyncio.Task)
+    assert await task == "done"
+
+
+@pytest.mark.asyncio
+async def test_register_task_wraps_future_inputs() -> None:
+    ctx = MockContext()
+    loop = asyncio.get_running_loop()
+    future: asyncio.Future[str] = loop.create_future()
+
+    task = await ctx.register_task(future, "future")
+    future.set_result("done")
+
+    assert isinstance(task, asyncio.Task)
+    assert task is not future
+    assert await task == "done"
+
+
+@pytest.mark.asyncio
+async def test_register_task_logs_cancel_once() -> None:
+    logger = RecordingLogger()
+    ctx = MockContext(logger=logger)
+    started = asyncio.Event()
+
+    async def background() -> None:
+        started.set()
+        await asyncio.Future()
+
+    task = await ctx.register_task(background(), "cancelled")
+    await started.wait()
+    task.cancel()
+
+    with pytest.raises(asyncio.CancelledError):
+        await task
+
+    assert logger.debug_calls == [
+        (
+            "SDK background task cancelled: plugin_id={} desc={}",
+            "test-plugin",
+            "cancelled",
+        )
+    ]
+    assert logger.exception_calls == []
+
+
+@pytest.mark.asyncio
+async def test_register_task_logs_failures() -> None:
+    logger = RecordingLogger()
+    ctx = MockContext(logger=logger)
+
+    async def background() -> None:
+        raise RuntimeError("boom")
+
+    task = await ctx.register_task(background(), "failing")
+
+    with pytest.raises(RuntimeError, match="boom"):
+        await task
+
+    assert logger.debug_calls == []
+    assert logger.exception_calls == [
+        (
+            "SDK background task failed: plugin_id={} desc={}",
+            "test-plugin",
+            "failing",
+        )
+    ]