diff --git a/.agents/skills/lib_py/stall_watch.py b/.agents/skills/lib_py/stall_watch.py
index 400c56b..7fa2717 100644
--- a/.agents/skills/lib_py/stall_watch.py
+++ b/.agents/skills/lib_py/stall_watch.py
@@ -155,12 +155,12 @@ class HerdrError(Exception):
 class HerdrSource(object):
     """Every herdr and OS read the judgement needs, in one place."""
 
-    def __init__(self, target, agent, session=None, name=None):
+    def __init__(self, target, agent, session=None, *, name):
         self.target, self.session = target, session or None
         # `name` is the name herdr knows the agent by (#66), worked out once
         # by StallWatch (#71); the kind is read off the original name, whose
         # suffix a long name's hash replaces.
-        self.name = name or target
+        self.name = name
         self.agent = resolve_agent(agent, target)
         adapter = get_adapter(self.agent) if self.agent else None
         self.resident = tuple(adapter.resident_children) if adapter else ()
diff --git a/tests/test_issue60_linux_fixes.py b/tests/test_issue60_linux_fixes.py
index 534585b..e5efcfc 100644
--- a/tests/test_issue60_linux_fixes.py
+++ b/tests/test_issue60_linux_fixes.py
@@ -96,7 +96,7 @@ def test_the_1x_capture_still_reads_empty():
 
 @pytest.mark.parametrize("name", HOME_SCREENS)
 def test_stall_watch_sees_the_2x_home_box_empty(name, monkeypatch):
-    src = stall_watch.HerdrSource("t", "opencode")
+    src = stall_watch.HerdrSource("t", "opencode", name="t")
     monkeypatch.setattr(src, "_herdr", lambda *args: _pane(name))
     assert src.input_empty() is True