diff --git a/tests/integrations/acp/acp_toolkit/agent.py b/tests/integrations/acp/acp_toolkit/agent.py
index d95d253a3..ad7bb8cc5 100644
--- a/tests/integrations/acp/acp_toolkit/agent.py
+++ b/tests/integrations/acp/acp_toolkit/agent.py
@@ -364,12 +364,21 @@ def will_call_mcp_tool(
         *,
         arguments: dict[str, Any],
         server: str = "band",
+        title: str | None = None,
     ) -> FakeACPAgent:
-        """Call an advertised MCP tool between ACP call and result updates."""
+        """Call an advertised MCP tool between ACP call and result updates.
+
+        ``title`` models agents that report an intent phrase instead of a tool name.
+        """
 
         async def _action(a: FakeACPAgent, sid: str) -> None:
             await a.emit(
-                sid, start_tool_call(tool_call_id, tool_name, raw_input=arguments)
+                sid,
+                start_tool_call(
+                    tool_call_id=tool_call_id,
+                    title=title or tool_name,
+                    raw_input=arguments,
+                ),
             )
             result = await a.call_mcp_tool(
                 session_id=sid,
diff --git a/tests/integrations/acp/test_client_adapter_behavior.py b/tests/integrations/acp/test_client_adapter_behavior.py
index cb6a8bd7a..5a4e93021 100644
--- a/tests/integrations/acp/test_client_adapter_behavior.py
+++ b/tests/integrations/acp/test_client_adapter_behavior.py
@@ -440,6 +440,69 @@ async def test_band_mcp_reply_is_narrated_around_the_message(fake_agent) -> None
     assert len(reply.tool_results) == 1
 
 
+@pytest.mark.asyncio
+async def test_intent_titled_no_reply_suppresses_closing_text(
+    fake_agent: FakeACPAgent,
+) -> None:
+    fake_agent.will_call_mcp_tool(
+        tool_call_id="tc-silent",
+        tool_name="band_no_reply",
+        title="Ending the turn silently",
+        arguments={"room_id": "room-1", "reason": "nothing asked of me"},
+    ).will_say("No action is needed, so I ended the turn without replying.")
+
+    async with acp_adapter(
+        fake_agent, fake_agent_config(inject_band_tools=True)
+    ) as session:
+        reply = await session.send("fyi, no action needed", room="room-1")
+
+    assert reply.texts == []
+
+
+@pytest.mark.asyncio
+async def test_intent_titled_send_message_is_not_duplicated_by_text(
+    fake_agent: FakeACPAgent,
+) -> None:
+    answer = "The fix is ready for review."
+    fake_agent.will_call_mcp_tool(
+        tool_call_id="tc-message",
+        tool_name="band_send_message",
+        title="Sending the review handoff",
+        arguments={
+            "room_id": "room-1",
+            "content": answer,
+            "mentions": ["@pat"],
+        },
+    ).will_say("I sent the review handoff.")
+
+    async with acp_adapter(
+        fake_agent, fake_agent_config(inject_band_tools=True)
+    ) as session:
+        reply = await session.send("please hand off", room="room-1")
+
+    assert reply.texts == [answer]
+
+
+@pytest.mark.asyncio
+async def test_intent_titled_read_only_tool_keeps_text_reply(
+    fake_agent: FakeACPAgent,
+) -> None:
+    answer = "I checked the room roster."
+    fake_agent.will_call_mcp_tool(
+        tool_call_id="tc-roster",
+        tool_name="band_get_participants",
+        title="Checking who is in the room",
+        arguments={"room_id": "room-1"},
+    ).will_say(answer)
+
+    async with acp_adapter(
+        fake_agent, fake_agent_config(inject_band_tools=True)
+    ) as session:
+        reply = await session.send("who is here?", room="room-1")
+
+    assert reply.texts == [answer]
+
+
 @pytest.mark.asyncio
 async def test_band_mcp_event_is_narrated_around_the_thought(fake_agent) -> None:
     """A room-visible Band event still gets real ACP tool_call/tool_result