feat: add readable duplex messaging

Assistant: codex
Assistant-Model: gpt-5.6-sol
Assistant-Session: 01a03397-4d51-7fd1-8ff2-946eb22ea2bc

tests/test_service_delivery.py

@@ -9,6 +9,7 @@ class FakeControl:
     def __init__(self, session):
         self.session = session
         self.injected = []
+        self.placed = []
         self.submitted = []
         self.__class__.instances.append(self)
 
@@ -24,6 +25,9 @@ class FakeControl:
     def submit(self, window, text):
         self.submitted.append((window, text))
 
+    def place(self, window, text):
+        self.placed.append((window, text))
+
     def pane_display(self, window):
         return PaneDisplay(
             tty_path=f"/dev/pts/{window.rsplit(':', 1)[-1]}",
@@ -43,7 +47,7 @@ def test_service_delivery_injects_pending_messages(tmp_path, monkeypatch):
     message_id = store.add("repo-a", "repo-b", "continue")
     monkeypatch.setattr("tamq.service.ControlModeClient", FakeControl)
     Service(store=store)._deliver_once()
-    assert FakeControl.instances[-1].injected == [("tamq:repo-b", "#repo-a: continue")]
+    assert FakeControl.instances[-1].injected == [("tamq:repo-b", "From:repo-a: continue")]
     assert store.list()[0]["message_id"] == message_id
     assert store.list()[0]["state"] == "injected"
 
@@ -60,7 +64,7 @@ def test_service_never_injects_manual_endpoint_messages(tmp_path, monkeypatch):
     assert store.list()[0]["state"] == "pending"
 
 
-def test_service_pushy_mode_submits_once_and_marks_injected(tmp_path, monkeypatch):
+def test_service_pushy_mode_places_once_without_enter(tmp_path, monkeypatch):
     store = Store(tmp_path / "queue.sqlite3")
     store.register_endpoint("tmux-amq-9-boot", 9, "tamq", ["repo-b"], "pushy")
     message_id = store.add("repo-a", "repo-b", "first\nsecond")
@@ -71,22 +75,36 @@ def test_service_pushy_mode_submits_once_and_marks_injected(tmp_path, monkeypatc
     control = FakeControl.instances[-1]
     service._deliver_once()
 
-    assert control.submitted == [
+    assert control.placed == [
         (
             "tamq:repo-b",
-            f"# from repo-a: first\\x0asecond [{message_id}]",
+            "From:repo-a: first\\x0asecond",
         )
     ]
+    assert control.submitted == []
     assert store.list()[0]["state"] == "injected"
 
 
+def test_service_trigger_mode_submits_exactly_once(tmp_path, monkeypatch):
+    store = Store(tmp_path / "queue.sqlite3")
+    store.register_endpoint("ep", 9, "tamq", ["repo-b"], "trigger")
+    store.add("repo-a", "repo-b", "go", provenance="operator_input")
+    monkeypatch.setattr("tamq.service.ControlModeClient", FakeControl)
+    service = Service(store=store)
+    service._deliver_once()
+    control = FakeControl.instances[-1]
+    service._deliver_once()
+    assert control.submitted == [("tamq:repo-b", "From:repo-a/o: go")]
+    assert control.placed == []
+
+
 def test_failed_pushy_submission_remains_pending(tmp_path, monkeypatch):
     store = Store(tmp_path / "queue.sqlite3")
     store.register_endpoint("tmux-amq-9-boot", 9, "tamq", ["repo-b"], "pushy")
     store.add("repo-a", "repo-b", "continue")
 
     class FailingControl(FakeControl):
-        def submit(self, window, text):
+        def place(self, window, text):
             raise RuntimeError("tmux rejected input")
 
     monkeypatch.setattr("tamq.service.ControlModeClient", FailingControl)
@@ -113,7 +131,7 @@ def test_service_writes_output_once_and_retains_pending_ack(tmp_path, monkeypatc
     assert writes == [
         (
             "/dev/pts/repo-b",
-            f"\r\n#repo-a: continue [{message_id}]\r\n",
+            "\r\nFrom:repo-a: continue\r\n",
         )
     ]
     row = store.list()[0]