feat(mma): Complete Phase 3 context features (injection, dependency mapping, logging)

tests/test_mma_exec.py

@@ -1,4 +1,5 @@
 import pytest
+import os
 from unittest.mock import patch, MagicMock
 from scripts.mma_exec import create_parser, get_role_documents, execute_agent, get_model_for_role, get_dependencies
 
@@ -115,3 +116,29 @@ def test_execute_agent_logging(tmp_path):
         assert test_role in log_content
         assert test_prompt in log_content
         assert re.search(r"\d{4}-\d{2}-\d{2}", log_content)
+
+
+def test_execute_agent_tier3_injection(tmp_path):
+    main_content = "import dependency\n\ndef run():\n    dependency.do_work()\n"
+    main_file = tmp_path / "main.py"
+    main_file.write_text(main_content)
+    dep_content = "def do_work():\n    pass\n\ndef other_func():\n    print('hello')\n"
+    dep_file = tmp_path / "dependency.py"
+    dep_file.write_text(dep_content)
+    old_cwd = os.getcwd()
+    os.chdir(tmp_path)
+    try:
+        with patch("subprocess.run") as mock_run:
+            mock_process = MagicMock()
+            mock_process.stdout = "OK"
+            mock_process.returncode = 0
+            mock_run.return_value = mock_process
+            execute_agent('tier3-worker', 'Modify main.py', ['main.py'])
+            assert mock_run.called
+            cmd_list = mock_run.call_args[0][0]
+            full_command = " ".join(str(arg) for arg in cmd_list)
+            assert "DEPENDENCY SKELETON: dependency.py" in full_command
+            assert "def do_work():" in full_command
+            assert "Modify main.py" in full_command
+    finally:
+        os.chdir(old_cwd)