Fixed all ruff issues

tests/test_domain_edge_cases.py

@@ -85,7 +85,7 @@ class TestImdbIdEdgeCases:
         id2 = ImdbId("tt1234567")
 
         # Should be usable in set
-        s = {id1, id2}
+        _s = {id1, id2}  # Test hashability
         # Depending on implementation, might be 1 or 2 items
 
 

tests/test_memory_edge_cases.py

@@ -390,9 +390,8 @@ class TestMemoryEdgeCases:
         """Should create directory if not exists."""
         new_dir = temp_dir / "new" / "nested" / "dir"
 
-        # Create parent directories first
-        new_dir.mkdir(parents=True, exist_ok=True)
-        memory = Memory(storage_dir=str(new_dir))
+        # Don't create the directory - let Memory do it
+        Memory(storage_dir=str(new_dir))
 
         assert new_dir.exists()
 
@@ -405,7 +404,7 @@ class TestMemoryEdgeCases:
         try:
             os.chmod(readonly_dir, 0o444)
             # This might raise or might work depending on OS
-            memory = Memory(storage_dir=str(readonly_dir))
+            Memory(storage_dir=str(readonly_dir))
         except (PermissionError, OSError):
             pass  # Expected on some systems
         finally:
@@ -512,7 +511,7 @@ class TestMemoryContextEdgeCases:
         """Should handle multiple init calls."""
         _memory_ctx.set(None)
 
-        mem1 = init_memory(str(temp_dir))
+        init_memory(str(temp_dir))
         mem2 = init_memory(str(temp_dir))
 
         # Second call should replace first

tests/test_prompts_critical.py

@@ -178,7 +178,7 @@ class TestPromptBuilderStructure:
         description = builder._format_tools_description()
 
         # Should have tool names and descriptions
-        for tool_name, tool in tools.items():
+        for tool_name, _tool in tools.items():
             assert tool_name in description
             # Should have parameters info
             assert "Parameters" in description or "parameters" in description

tests/test_registry_critical.py

@@ -71,7 +71,7 @@ class TestToolSpecFormat:
 
             # Verify function has valid signature
             try:
-                sig = inspect.signature(tool.func)
+                inspect.signature(tool.func)
                 # If we get here, signature is valid
             except Exception as e:
                 pytest.fail(f"Tool {name} has invalid signature: {e}")

tests/test_registry_edge_cases.py

@@ -245,7 +245,7 @@ class TestMakeToolsEdgeCases:
 
         for tool in tools.values():
             if "properties" in tool.parameters:
-                for prop_name, prop_schema in tool.parameters["properties"].items():
+                for _prop_name, prop_schema in tool.parameters["properties"].items():
                     if "enum" in prop_schema:
                         assert isinstance(prop_schema["enum"], list)
                         assert len(prop_schema["enum"]) > 0