Normalize repository validation and metadata

tests/test_cli_error_handling.py

@@ -222,7 +222,7 @@ class TestWorkaroundRemovalReadiness:
         # Test that the CLI works when invoked as a subprocess
         result = subprocess.run(
             [
-                "python",
+                sys.executable,
                 "-c",
                 'from kaizen_agentic.cli import safe_cli_wrapper; import sys; sys.argv = ["kaizen-agentic", "list"]; safe_cli_wrapper()',
             ],

tests/test_registry.py

@@ -58,6 +58,25 @@ description: Second test agent
     assert registry.get_agent("agent-two") is not None
 
 
+def test_agent_definition_ignores_empty_dependencies(tmp_path):
+    """An empty dependency declaration must not create an empty-name edge."""
+    agent_content = """---
+name: standalone-agent
+description: Agent with an explicit empty dependency list
+dependencies: []
+---
+
+# Standalone Agent
+"""
+
+    agent_file = tmp_path / "agent-standalone-agent.md"
+    agent_file.write_text(agent_content)
+
+    agent_def = AgentDefinition.from_file(agent_file)
+
+    assert agent_def.dependencies == set()
+
+
 def test_agent_registry_get_agent(tmp_path):
     """Test getting specific agent."""
     agent_content = """---