diff --git a/integration_test.go b/integration_test.go
index ca9c2d9..8f7be86 100644
--- a/integration_test.go
+++ b/integration_test.go
@@ -557,4 +557,4 @@ func BenchmarkIntegration_ExecuteQuery(b *testing.B) {
 			b.Fatal(err)
 		}
 	}
-}
\ No newline at end of file
+}
diff --git a/internal/app/app.go b/internal/app/app.go
index 89d5f9c..1f321c5 100644
--- a/internal/app/app.go
+++ b/internal/app/app.go
@@ -323,4 +323,4 @@ func (a *App) ensureConnection() error {
 	}
 
 	return nil
-}
\ No newline at end of file
+}
diff --git a/internal/app/app_test.go b/internal/app/app_test.go
index 45a6037..72c2cca 100644
--- a/internal/app/app_test.go
+++ b/internal/app/app_test.go
@@ -127,9 +127,6 @@ func TestApp_SetLogger(t *testing.T) {
 	assert.Equal(t, newLogger, app.logger)
 }
 
-
-
-
 func TestApp_Disconnect(t *testing.T) {
 	app, _ := New()
 	mockClient := &MockPostgreSQLClient{}
@@ -534,4 +531,4 @@ func TestApp_ListIndexes(t *testing.T) {
 	assert.NoError(t, err)
 	assert.Equal(t, expectedIndexes, indexes)
 	mockClient.AssertExpectations(t)
-}
\ No newline at end of file
+}
diff --git a/internal/app/client.go b/internal/app/client.go
index 066a61b..c7bb070 100644
--- a/internal/app/client.go
+++ b/internal/app/client.go
@@ -42,9 +42,9 @@ func (c *PostgreSQLClientImpl) Connect(connectionString string) error {
 func (c *PostgreSQLClientImpl) Close() error {
 	if c.db != nil {
 		if err := c.db.Close(); err != nil {
-		return fmt.Errorf("failed to close database: %w", err)
-	}
-	return nil
+			return fmt.Errorf("failed to close database: %w", err)
+		}
+		return nil
 	}
 	return nil
 }
@@ -461,4 +461,4 @@ func (c *PostgreSQLClientImpl) ExplainQuery(query string, args ...interface{}) (
 		Rows:     result,
 		RowCount: len(result),
 	}, nil
-}
\ No newline at end of file
+}
diff --git a/internal/app/client_mocked_test.go b/internal/app/client_mocked_test.go
index 4134aa8..a86bb2a 100644
--- a/internal/app/client_mocked_test.go
+++ b/internal/app/client_mocked_test.go
@@ -96,9 +96,9 @@ func TestPostgreSQLClient_QueryValidationLogic(t *testing.T) {
 			shouldAllow: true,
 		},
 		{
-			name:        "select lowercase",
-			query:       "select * from users",
-			shouldAllow: false,
+			name:          "select lowercase",
+			query:         "select * from users",
+			shouldAllow:   false,
 			expectedError: "only SELECT and WITH queries are allowed",
 		},
 		{
@@ -256,4 +256,4 @@ func TestPostgreSQLClient_SchemaDefaults(t *testing.T) {
 			assert.Contains(t, err.Error(), "no database connection")
 		})
 	}
-}
\ No newline at end of file
+}
diff --git a/internal/app/client_test.go b/internal/app/client_test.go
index b5f29a2..f5489d6 100644
--- a/internal/app/client_test.go
+++ b/internal/app/client_test.go
@@ -273,10 +273,10 @@ func TestPostgreSQLClient_ExecuteQueryInvalidQueries(t *testing.T) {
 			if tt.expectError {
 				assert.Error(t, err)
 				if tt.errorMsg == "only SELECT and WITH queries are allowed" {
-				assert.Contains(t, err.Error(), "no database connection")
-			} else {
-				assert.Contains(t, err.Error(), tt.errorMsg)
-			}
+					assert.Contains(t, err.Error(), "no database connection")
+				} else {
+					assert.Contains(t, err.Error(), tt.errorMsg)
+				}
 				assert.Nil(t, result)
 			} else {
 				assert.NoError(t, err)
@@ -465,4 +465,4 @@ func TestExecuteQueryEmptyResult(t *testing.T) {
 	assert.Equal(t, 0, result.RowCount)
 	assert.Len(t, result.Rows, 0)
 	assert.Len(t, result.Columns, 0)
-}
\ No newline at end of file
+}
diff --git a/internal/app/interfaces.go b/internal/app/interfaces.go
index defc7e2..18d5d92 100644
--- a/internal/app/interfaces.go
+++ b/internal/app/interfaces.go
@@ -10,10 +10,10 @@ var (
 	ErrConnectionRequired = errors.New(
 		"database connection failed. Please check POSTGRES_URL or DATABASE_URL environment variable",
 	)
-	ErrSchemaRequired       = errors.New("schema name is required")
-	ErrTableRequired        = errors.New("table name is required")
-	ErrQueryRequired        = errors.New("query is required")
-	ErrInvalidQuery         = errors.New("only SELECT and WITH queries are allowed")
+	ErrSchemaRequired     = errors.New("schema name is required")
+	ErrTableRequired      = errors.New("table name is required")
+	ErrQueryRequired      = errors.New("query is required")
+	ErrInvalidQuery       = errors.New("only SELECT and WITH queries are allowed")
 	ErrNoConnectionString = errors.New(
 		"no database connection string found in POSTGRES_URL or DATABASE_URL environment variables",
 	)
@@ -58,20 +58,20 @@ type ColumnInfo struct {
 
 // IndexInfo represents index metadata.
 type IndexInfo struct {
-	Name       string   `json:"name"`
-	Table      string   `json:"table"`
-	Columns    []string `json:"columns"`
-	IsUnique   bool     `json:"is_unique"`
-	IsPrimary  bool     `json:"is_primary"`
-	IndexType  string   `json:"index_type"`
-	Size       string   `json:"size,omitempty"`
+	Name      string   `json:"name"`
+	Table     string   `json:"table"`
+	Columns   []string `json:"columns"`
+	IsUnique  bool     `json:"is_unique"`
+	IsPrimary bool     `json:"is_primary"`
+	IndexType string   `json:"index_type"`
+	Size      string   `json:"size,omitempty"`
 }
 
 // QueryResult represents the result of a query execution.
 type QueryResult struct {
-	Columns []string        `json:"columns"`
-	Rows    [][]interface{} `json:"rows"`
-	RowCount int            `json:"row_count"`
+	Columns  []string        `json:"columns"`
+	Rows     [][]interface{} `json:"rows"`
+	RowCount int             `json:"row_count"`
 }
 
 // ConnectionManager handles database connection operations.
@@ -109,4 +109,4 @@ type PostgreSQLClient interface {
 	DatabaseExplorer
 	TableExplorer
 	QueryExecutor
-}
\ No newline at end of file
+}
diff --git a/internal/app/interfaces_test.go b/internal/app/interfaces_test.go
index 50b2f2f..b60e58b 100644
--- a/internal/app/interfaces_test.go
+++ b/internal/app/interfaces_test.go
@@ -315,4 +315,4 @@ func TestQueryResultWithMixedTypes(t *testing.T) {
 	assert.Equal(t, float64(30), deserializedResult.Rows[0][2])
 	assert.Equal(t, true, deserializedResult.Rows[0][3])
 	assert.Equal(t, 95.5, deserializedResult.Rows[0][4])
-}
\ No newline at end of file
+}
diff --git a/internal/logger/logger.go b/internal/logger/logger.go
index 16fe0b1..4d0d7da 100644
--- a/internal/logger/logger.go
+++ b/internal/logger/logger.go
@@ -24,4 +24,4 @@ func NewLogger(level string) *slog.Logger {
 
 	handler := slog.NewTextHandler(os.Stderr, opts)
 	return slog.New(handler)
-}
\ No newline at end of file
+}
diff --git a/internal/logger/logger_test.go b/internal/logger/logger_test.go
index 26772e6..c085088 100644
--- a/internal/logger/logger_test.go
+++ b/internal/logger/logger_test.go
@@ -213,4 +213,4 @@ func TestLoggerCaseInsensitive(t *testing.T) {
 			assert.NotNil(t, logger)
 		})
 	}
-}
\ No newline at end of file
+}
diff --git a/main.go b/main.go
index 8751fd1..4c12552 100644
--- a/main.go
+++ b/main.go
@@ -24,7 +24,6 @@ var (
 	ErrInvalidConnectionParameters = errors.New("invalid connection parameters")
 )
 
-
 // setupListDatabasesTool creates and registers the list_databases tool.
 func setupListDatabasesTool(s *server.MCPServer, appInstance *app.App, debugLogger *slog.Logger) {
 	listDBTool := mcp.NewTool("list_databases",
@@ -522,4 +521,4 @@ func main() {
 		fmt.Fprintf(os.Stderr, "Server error: %v\n", err)
 		return
 	}
-}
\ No newline at end of file
+}
diff --git a/main_additional_test.go b/main_additional_test.go
index c87b697..eedfe75 100644
--- a/main_additional_test.go
+++ b/main_additional_test.go
@@ -269,4 +269,4 @@ func TestEnvironmentVariableHandling(t *testing.T) {
 	}
 
 	assert.Equal(t, "postgres://test2@localhost/db2", connectionString)
-}
\ No newline at end of file
+}
diff --git a/main_command_line_test.go b/main_command_line_test.go
index f57f11c..f280f81 100644
--- a/main_command_line_test.go
+++ b/main_command_line_test.go
@@ -77,4 +77,4 @@ func TestMainFunctionLogic(t *testing.T) {
 			registerAllTools(server, app, logger)
 		})
 	})
-}
\ No newline at end of file
+}
diff --git a/main_test.go b/main_test.go
index d47e661..ada34ed 100644
--- a/main_test.go
+++ b/main_test.go
@@ -18,7 +18,6 @@ type MockApp struct {
 	mock.Mock
 }
 
-
 func (m *MockApp) GetCurrentDatabase() (string, error) {
 	args := m.Called()
 	return args.String(0), args.Error(1)
@@ -97,7 +96,6 @@ func (m *MockApp) Disconnect() error {
 	return args.Error(0)
 }
 
-
 func TestSetupListDatabasesTool(t *testing.T) {
 	s := server.NewMCPServer("test", "1.0.0")
 	realApp, err := app.New()
@@ -261,7 +259,6 @@ func TestErrorVariables(t *testing.T) {
 
 // Test MCP tool parameter validation
 
-
 func TestDescribeTableTool_ParameterValidation(t *testing.T) {
 	tests := []struct {
 		name          string
@@ -441,4 +438,4 @@ func TestToolResponseFormatting(t *testing.T) {
 	assert.NoError(t, err)
 	assert.Len(t, unmarshalled, 2)
 	assert.Equal(t, "db1", unmarshalled[0].Name)
-}
\ No newline at end of file
+}
diff --git a/main_tool_coverage_test.go b/main_tool_coverage_test.go
index 51170c8..f898b6e 100644
--- a/main_tool_coverage_test.go
+++ b/main_tool_coverage_test.go
@@ -237,4 +237,4 @@ func TestParameterParsingLogic(t *testing.T) {
 		assert.NotEmpty(t, query)
 		assert.Greater(t, limit, 0.0)
 	})
-}
\ No newline at end of file
+}