diff --git a/src/aiida/cmdline/commands/cmd_process.py b/src/aiida/cmdline/commands/cmd_process.py
index e203bdddfc..5ad7c5d53c 100644
--- a/src/aiida/cmdline/commands/cmd_process.py
+++ b/src/aiida/cmdline/commands/cmd_process.py
@@ -340,8 +340,13 @@ def process_kill(processes, all_entries, timeout, wait):
 
     with capture_logging() as stream:
         try:
-            message = 'Killed through `verdi process kill`'
-            control.kill_processes(processes, all_entries=all_entries, timeout=timeout, wait=wait, message=message)
+            control.kill_processes(
+                processes,
+                msg_text='Killed through `verdi process kill`',
+                all_entries=all_entries,
+                timeout=timeout,
+                wait=wait,
+            )
         except control.ProcessTimeoutException as exception:
             echo.echo_critical(f'{exception}\n{REPAIR_INSTRUCTIONS}')
 
@@ -371,8 +376,13 @@ def process_pause(processes, all_entries, timeout, wait):
 
     with capture_logging() as stream:
         try:
-            message = 'Paused through `verdi process pause`'
-            control.pause_processes(processes, all_entries=all_entries, timeout=timeout, wait=wait, message=message)
+            control.pause_processes(
+                processes,
+                msg_text='Paused through `verdi process pause`',
+                all_entries=all_entries,
+                timeout=timeout,
+                wait=wait,
+            )
         except control.ProcessTimeoutException as exception:
             echo.echo_critical(f'{exception}\n{REPAIR_INSTRUCTIONS}')
 
diff --git a/src/aiida/engine/processes/control.py b/src/aiida/engine/processes/control.py
index 7cc214c76c..c133a25d74 100644
--- a/src/aiida/engine/processes/control.py
+++ b/src/aiida/engine/processes/control.py
@@ -4,6 +4,8 @@
 
 import collections
 import concurrent
+import functools
+from pydoc import text
 import typing as t
 
 import kiwipy
@@ -135,7 +137,7 @@ def play_processes(
 def pause_processes(
     processes: list[ProcessNode] | None = None,
     *,
-    message: str = 'Paused through `aiida.engine.processes.control.pause_processes`',
+    msg_text: str = 'Paused through `aiida.engine.processes.control.pause_processes`',
     all_entries: bool = False,
     timeout: float = 5.0,
     wait: bool = False,
@@ -164,13 +166,14 @@ def pause_processes(
         return
 
     controller = get_manager().get_process_controller()
-    _perform_actions(processes, controller.pause_process, 'pause', 'pausing', timeout, wait, msg=message)
+    action = functools.partial(controller.pause_process, msg_text=msg_text)
+    _perform_actions(processes, action, 'pause', 'pausing', timeout, wait)
 
 
 def kill_processes(
     processes: list[ProcessNode] | None = None,
     *,
-    message: str = 'Killed through `aiida.engine.processes.control.kill_processes`',
+    msg_text: str = 'Killed through `aiida.engine.processes.control.kill_processes`',
     all_entries: bool = False,
     timeout: float = 5.0,
     wait: bool = False,
@@ -199,7 +202,8 @@ def kill_processes(
         return
 
     controller = get_manager().get_process_controller()
-    _perform_actions(processes, controller.kill_process, 'kill', 'killing', timeout, wait, msg=message)
+    action = functools.partial(controller.kill_process, msg_text=msg_text)
+    _perform_actions(processes, action, 'kill', 'killing', timeout, wait)
 
 
 def _perform_actions(
diff --git a/src/aiida/engine/processes/functions.py b/src/aiida/engine/processes/functions.py
index 8bca68f55c..7936979531 100644
--- a/src/aiida/engine/processes/functions.py
+++ b/src/aiida/engine/processes/functions.py
@@ -222,7 +222,7 @@ def run_get_node(*args, **kwargs) -> tuple[dict[str, t.Any] | None, 'ProcessNode
             if kwargs and not process_class.spec().inputs.dynamic:
                 raise ValueError(f'{function.__name__} does not support these kwargs: {kwargs.keys()}')
 
-            process = process_class(inputs=inputs, runner=runner)
+            process: Process = process_class(inputs=inputs, runner=runner)
 
             # Only add handlers for interrupt signal to kill the process if we are in a local and not a daemon runner.
             # Without this check, running process functions in a daemon worker would be killed if the daemon is shutdown
@@ -235,7 +235,7 @@ def run_get_node(*args, **kwargs) -> tuple[dict[str, t.Any] | None, 'ProcessNode
                 def kill_process(_num, _frame):
                     """Send the kill signal to the process in the current scope."""
                     LOGGER.critical('runner received interrupt, killing process %s', process.pid)
-                    result = process.kill(msg='Process was killed because the runner received an interrupt')
+                    result = process.kill(msg_text='Process was killed because the runner received an interrupt')
                     return result
 
                 # Store the current handler on the signal such that it can be restored after process has terminated
diff --git a/src/aiida/engine/processes/process.py b/src/aiida/engine/processes/process.py
index e25d1b7c23..f29d426770 100644
--- a/src/aiida/engine/processes/process.py
+++ b/src/aiida/engine/processes/process.py
@@ -329,7 +329,7 @@ def load_instance_state(
 
         self.node.logger.info(f'Loaded process<{self.node.pk}> from saved state')
 
-    def kill(self, msg: Union[str, None] = None) -> Union[bool, plumpy.futures.Future]:
+    def kill(self, msg_text: str | None = None) -> Union[bool, plumpy.futures.Future]:
         """Kill the process and all the children calculations it called
 
         :param msg: message
@@ -338,7 +338,7 @@ def kill(self, msg: Union[str, None] = None) -> Union[bool, plumpy.futures.Futur
 
         had_been_terminated = self.has_terminated()
 
-        result = super().kill(msg)
+        result = super().kill(msg_text)
 
         # Only kill children if we could be killed ourselves
         if result is not False and not had_been_terminated:
@@ -348,7 +348,7 @@ def kill(self, msg: Union[str, None] = None) -> Union[bool, plumpy.futures.Futur
                     self.logger.info('no controller available to kill child<%s>', child.pk)
                     continue
                 try:
-                    result = self.runner.controller.kill_process(child.pk, f'Killed by parent<{self.node.pk}>')
+                    result = self.runner.controller.kill_process(child.pk, msg_text=f'Killed by parent<{self.node.pk}>')
                     result = asyncio.wrap_future(result)  # type: ignore[arg-type]
                     if asyncio.isfuture(result):
                         killing.append(result)
diff --git a/src/aiida/engine/runners.py b/src/aiida/engine/runners.py
index 42cb76244c..b19821b2e7 100644
--- a/src/aiida/engine/runners.py
+++ b/src/aiida/engine/runners.py
@@ -250,7 +250,7 @@ def kill_process(_num, _frame):
                     LOGGER.warning('runner received interrupt, process %s already being killed', process_inited.pid)
                     return
                 LOGGER.critical('runner received interrupt, killing process %s', process_inited.pid)
-                process_inited.kill(msg='Process was killed because the runner received an interrupt')
+                process_inited.kill(msg_text='Process was killed because the runner received an interrupt')
 
             original_handler_int = signal.getsignal(signal.SIGINT)
             original_handler_term = signal.getsignal(signal.SIGTERM)
diff --git a/tests/engine/test_rmq.py b/tests/engine/test_rmq.py
index a2edc2fa41..d0a3e461fb 100644
--- a/tests/engine/test_rmq.py
+++ b/tests/engine/test_rmq.py
@@ -93,8 +93,7 @@ async def do_pause():
             assert result
             assert calc_node.paused
 
-            kill_message = 'Sorry, you have to go mate'
-            kill_future = controller.kill_process(calc_node.pk, msg=kill_message)
+            kill_future = controller.kill_process(calc_node.pk, msg_text='Sorry, you have to go mate')
             future = await with_timeout(asyncio.wrap_future(kill_future))
             result = await self.wait_future(asyncio.wrap_future(future))
             assert result
@@ -112,7 +111,7 @@ async def do_pause_play():
                 await asyncio.sleep(0.1)
 
             pause_message = 'Take a seat'
-            pause_future = controller.pause_process(calc_node.pk, msg=pause_message)
+            pause_future = controller.pause_process(calc_node.pk, msg_text=pause_message)
             future = await with_timeout(asyncio.wrap_future(pause_future))
             result = await self.wait_future(asyncio.wrap_future(future))
             assert calc_node.paused
@@ -126,8 +125,7 @@ async def do_pause_play():
             assert not calc_node.paused
             assert calc_node.process_status is None
 
-            kill_message = 'Sorry, you have to go mate'
-            kill_future = controller.kill_process(calc_node.pk, msg=kill_message)
+            kill_future = controller.kill_process(calc_node.pk, msg_text='Sorry, you have to go mate')
             future = await with_timeout(asyncio.wrap_future(kill_future))
             result = await self.wait_future(asyncio.wrap_future(future))
             assert result
@@ -145,7 +143,7 @@ async def do_kill():
                 await asyncio.sleep(0.1)
 
             kill_message = 'Sorry, you have to go mate'
-            kill_future = controller.kill_process(calc_node.pk, msg=kill_message)
+            kill_future = controller.kill_process(calc_node.pk, msg_text=kill_message)
             future = await with_timeout(asyncio.wrap_future(kill_future))
             result = await self.wait_future(asyncio.wrap_future(future))
             assert result