feat: add CLI Apps settings MVP

tests/agent/test_context_builder.py

@@ -362,6 +362,21 @@ class TestBuildMessages:
         assert "Other chat goal." not in str(without_goal[-1]["content"])
         assert "Goal (active):" not in str(without_goal[-1]["content"])
 
+    def test_current_runtime_lines_are_injected(self, tmp_path):
+        builder = _builder(tmp_path)
+        messages = builder.build_messages(
+            [],
+            "please use @zoom tonight",
+            current_runtime_lines=[
+                "CLI App Attachment: @zoom (installed; tool=run_cli_app; entry_point=cli-anything-zoom).",
+            ],
+        )
+        user_msg = str(messages[-1]["content"])
+
+        assert "CLI App Attachment: @zoom" in user_msg
+        assert "tool=run_cli_app" in user_msg
+        assert "entry_point=cli-anything-zoom" in user_msg
+
     def test_consecutive_same_role_merged(self, tmp_path):
         builder = _builder(tmp_path)
         history = [{"role": "user", "content": "previous user message"}]

tests/agent/test_session_manager_history.py

@@ -359,6 +359,31 @@ def test_get_history_synthesizes_breadcrumb_for_image_only_turn():
     assert history[0] == {"role": "user", "content": "[image: /m/pic.png]"}
 
 
+def test_get_history_synthesizes_cli_app_attachment_breadcrumb():
+    session = Session(key="test:cli-app")
+    session.messages.append(
+        {
+            "role": "user",
+            "content": "please use @drawio",
+            "cli_apps": [{
+                "name": "drawio",
+                "entry_point": "cli-anything-drawio",
+            }],
+        }
+    )
+
+    history = session.get_history(max_messages=500)
+
+    assert history == [{
+        "role": "user",
+        "content": (
+            "please use @drawio\n"
+            "[CLI App Attachment: @drawio; tool=run_cli_app; "
+            "entry_point=cli-anything-drawio; skill=skills/cli-app-drawio/SKILL.md]"
+        ),
+    }]
+
+
 def test_get_history_ignores_media_kwarg_on_non_user_rows():
     """``media`` only ever appears on user entries in practice, but the
     synthesizer must be defensive: assistants / tools with list content