diff --git a/bin/cfg b/bin/cfg
index 3c7c0ef..78e84c5 100755
--- a/bin/cfg
+++ b/bin/cfg
@@ -22,12 +22,7 @@ foreach ($autoloadFiles as $autoloadFile) {
 	}
 }
 
-function verboseLog(bool $enabled, string $message): void
-{
-	if ($enabled) fwrite(STDERR, "[verbose] $message".PHP_EOL);
-}
-
-$version = '0.4';
+$version = '0.3';
 
 $actions = [ 'show', 'write', 'help' ];
 $settings = ['key' => '', 'value' => ''];
@@ -40,55 +35,15 @@ $collection = (new Input\InputCollection())
 		->description('Display help text')
 	) // }}}
 
-	->add( Input\InputTypeFactory::build('LongOption')->name('verbose')->short('v') // {{{
-		->flags(AbstractInputType::FLAG_OPTIONAL)
-		->description('Print debug details to STDERR')
+	->add( Input\InputTypeFactory::build('LongOption')->name('in')->short('i') // {{{
+		->flags(AbstractInputType::FLAG_OPTIONAL | Input\AbstractInputType::FLAG_VALUE_REQUIRED)
+		->description('Path to a json data file to to read')
 	) // }}}
 
-	->add( Input\InputTypeFactory::build('LongOption')->name('in')->short('i') // {{{
-			->flags(AbstractInputType::FLAG_OPTIONAL | Input\AbstractInputType::FLAG_VALUE_REQUIRED)
-			->description('Path to a JSON data file to read (for write)')
-			->validator(new Input\Validator(
-				function (AbstractInputType $input, AbstractInputHandler $context)
-				{
-					$path = $context->find('in');
-					if ($path === null || $path === '') {
-						return null;
-					}
-
-					if (!is_readable($path))
-					{
-						throw new \Exception("Input file is not readable: $path");
-					}
-
-					$content = file_get_contents($path);
-					if ($content === false)
-					{
-						throw new \Exception("Can not read input file: $path");
-					}
-
-					try
-					{
-						$data = json_decode($content, true, 512, JSON_THROW_ON_ERROR);
-					}
-					catch (\JsonException $ex)
-					{
-						throw new \Exception(sprintf(
-							'Input JSON is invalid (%s): %s',
-							(string)$ex->getCode(),
-							$ex->getMessage()
-						));
-					}
-
-					if (!is_array($data))
-					{
-						throw new \Exception('Input JSON must decode to an object/array');
-					}
-
-					return $data;
-				}
-			))
-		) // }}}
+	->add( Input\InputTypeFactory::build('LongOption')->name('out')->short('o') // {{{
+		->flags(AbstractInputType::FLAG_OPTIONAL | Input\AbstractInputType::FLAG_VALUE_REQUIRED)
+		->description('Path to a json file to to write to')
+	) // }}}
 
 	->add( Input\InputTypeFactory::build('LongOption')->name('mode')->short('m') // {{{
 		->flags(AbstractInputType::FLAG_OPTIONAL | Input\AbstractInputType::FLAG_VALUE_REQUIRED)
@@ -105,60 +60,6 @@ $collection = (new Input\InputCollection())
 		->description('Path where the config/ directory of the package conf files is located, defaults to the working dir')
 	) // }}}
 
-	->add( Input\InputTypeFactory::build('LongOption')->name('siteDir')->short('s') // {{{
-			->flags(AbstractInputType::FLAG_OPTIONAL | Input\AbstractInputType::FLAG_VALUE_REQUIRED)
-			->description('Site/instance directory below config/. Accepts owner_xyz or config/owner_xyz')
-			->validator(new Input\Validator(
-				function (AbstractInputType $input, AbstractInputHandler $context)
-				{
-					$siteInput = $context->find('siteDir');
-					if ($siteInput === null || $siteInput === false) {
-						return null;
-					}
-
-					$siteInput = trim((string)$siteInput);
-					$appPath = $context->find('appPath');
-					if (!$appPath) {
-						$appPath = getcwd().'/';
-					}
-					$appPath = rtrim($appPath, '/').'/';
-
-					// Accept both "owner_xyz" and "config/owner_xyz" and normalize to site key.
-					if (str_starts_with($siteInput, $appPath.'config/'))
-					{
-						$siteInput = substr($siteInput, strlen($appPath.'config/'));
-					}
-					elseif (str_starts_with($siteInput, 'config/'))
-					{
-						$siteInput = substr($siteInput, strlen('config/'));
-					}
-
-					$siteInput = trim($siteInput, '/');
-					if ($siteInput === '')
-					{
-						throw new \Exception('Option --siteDir is empty.');
-					}
-
-					// Block directory traversal and hidden-dot segments.
-					if (str_contains($siteInput, '..') || preg_match('~(^|/)\.(?:/|$)~', $siteInput))
-					{
-						throw new \Exception("Invalid directory in --siteDir: '$siteInput'.");
-					}
-
-					// Allow only predictable path segments for instance directories.
-					foreach (explode('/', $siteInput) as $part)
-					{
-						if ($part === '' || !preg_match('/^[A-Za-z0-9._-]+$/', $part))
-						{
-							throw new \Exception("Invalid directory name segment '$part' in --siteDir.");
-						}
-					}
-
-					return $siteInput;
-				}
-			))
-		) // }}}
-
 	->add( Input\InputTypeFactory::build('Argument')->name('action') // {{{
 		->flags(AbstractInputType::FLAG_REQUIRED)
 		->description(
@@ -201,30 +102,18 @@ $collection = (new Input\InputCollection())
 		->description(
 			'the settings you want to work on. With action "write" you can pass the value to set as JSON after an equal sign.'
 		)
-			->validator(new Input\Validator(
-				function (AbstractInputType $input, AbstractInputHandler $context)
-				{
-					$setting = $context->find('setting');
-						$action = $context->find('action');
-						$inputPayload = $context->find('in');
-
-						if ($action === 'write')
-						{
-							if (($setting !== null && $setting !== '') && $inputPayload) {
-								throw new \Exception('Please use either SETTING or --in, not both.');
-							}
-						}
-	
-					if ($setting === null || $setting === '') {
-						return ['key' => '', 'value' => null];
-					}
-
+		->validator(new Input\Validator(
+			function (AbstractInputType $input, AbstractInputHandler $context)
+			{
+				$setting = $context->find('setting');
+				$action = $context->find('action');
+				
 				$setting = explode('=', $setting);
 				$settings['key'] = $setting[0];
 				if ($action === 'write')
 				{
-					$value = $setting[1] ?? null;
-					if (! (isset($value) || $context->find('in'))) {
+					$value = $setting[1];
+					if (! (isset($value) || $context->find('data'))) {
 						throw new \Exception('You need a value to write');
 					}
 					$specialValues = [ 'true', 'false', 'null' ];
@@ -250,50 +139,18 @@ $collection = (new Input\InputCollection())
 $usage = Cli\manpage( basename(__FILE__), $version,
 	'read write settings',
 	$collection, Colour::FG_GREEN, Colour::FG_WHITE,
-		[
-			'Examples' =>
-				'Basic usage:'
-				.PHP_EOL
-				 .'cfg show VeruA db:host'
-				 .PHP_EOL
-				 .'cfg write VeruA \'db:host="newHost"\''
-				 .PHP_EOL
-				 .PHP_EOL
-				.'Advance usage:'
-            	 .PHP_EOL
-				 .'cfg write prefix \'module:enabled=true\''
-				 .PHP_EOL
-				 .PHP_EOL
-				 .'#Site specific write:'
-				 .PHP_EOL
-				 .'cfg write prefix \'module:enabled=true\' --siteDir=owner_xyz'
-				 .PHP_EOL
-				 .PHP_EOL
-				 .'#Batch write from JSON file:'
-				 .PHP_EOL
-				 .'cfg write prefix --siteDir=owner_xyz -i /tmp/extension.json'
-				 .PHP_EOL
-				 .PHP_EOL
-				 .'#Batch write from JSON string:'
-				 .PHP_EOL
-				 .'cfg write prefix \'module={"enabled":true,"timeout":30,"label":"example"}\' --siteDir=owner_xyz'
-				 .PHP_EOL
-				 .PHP_EOL
-				 .'#Read merged value for a site:'
-				 .PHP_EOL
-				 .'cfg show prefix module:enabled --siteDir=owner_xyz'
-				 .PHP_EOL
-		]
+	[
+		'Examples' =>
+			 'cfg show VeruA db:host'.PHP_EOL.
+			 'cfg write VeruA \'db:host="newHost"\''.PHP_EOL
+	]
 ).PHP_EOL;
 
 // Get the supplied input. Passing the collection will make the handler bind values
 // and validate the input according to our collection
-try
-{
+try {
 	$argv = Input\InputHandlerFactory::build('Argv', $collection);
-}
-catch (\Exception $ex)
-{
+} catch (\Exception $ex) {
 	echo $usage;
 
 	if (isset($argv[1])) {
@@ -315,41 +172,42 @@ if ($argv->find( 'help' ) || $argv->find('action') == 'help')
 
 
 $prefix = $argv->find('prefix');
-$verbose = (bool)$argv->find('verbose');
+/* 
+echo $argv->find('action').PHP_EOL;
+echo ($prefix).PHP_EOL;
+echo $argv->find('setting')['key'].PHP_EOL;
+echo $argv->find('setting')['value'].PHP_EOL;
+ */
+// var_dump($cfg);
 $appPath = $argv->find('appPath');
 if (!$appPath) $appPath = getcwd().'/';
-$appPath = rtrim($appPath, '/').'/';
 
+/* $it = new RecursiveDirectoryIterator($appPath);
+
+foreach(new RecursiveIteratorIterator($it) as $file)
+{
+	$configDir = $file->getPath();
+	if ($file->isDir() && $file->getFilename() == '.' && basename($configDir) == 'config') {
+		echo "found config dir: $configDir\n";
+	}
+}
+ */
 $mode = ($argv->find('mode') == '') ? null : $argv->find('mode');
 $cfg = (new Settings([], $mode))->appPath($appPath)->prefix($prefix);
-// pkgPath points to package defaults (e.g. <prefix>.default.conf.php)
-if ($pkgPath = $argv->find('pkgPath')) $cfg->pkgPath(rtrim($pkgPath, '/').'/');
+if ($pkgPath = $argv->find('pkgPath')) $cfg->pkgPath($pkgPath);
 
-$site = null;
-$siteFlag = 0x01;
-$site = $argv->find('siteDir');
-if ($site !== null && $site !== false)
-{
-		// Reuse util-settings site resolution: config/<site>/<prefix>.conf.php
-		$cfg->site($site);
-		verboseLog($verbose, "siteDir resolved to '$site'");
-}
-
-try
-{
+try {
 	if (is_readable($cfg->buildFileName('default'))) {
 		$cfg->load();
 	}
 	elseif (is_readable($cfgFile = $cfg->buildFileName())) {
 		$cfg->load(require($cfgFile));
 	}
-}
-catch (\Throwable $e)
-{
+} catch (Exception $e) {
 	fwrite(STDERR, "Error: ".$e->getMessage().PHP_EOL);
 	exit(1);
 }
-verboseLog($verbose, 'config bootstrap loaded');
+//var_dump($cfg);
 
 $result = $cfg;
 $settings = $argv->find('setting') ?? $settings;
@@ -374,63 +232,33 @@ if ($result instanceof Settings) $result = $result->toArray();
 switch ($argv->find('action'))
 {
 case 'show':
-	verboseLog($verbose, "show action for prefix '$prefix'");
 	$out = (is_string($result)) ? $result : json_encode($result, JSON_PRETTY_PRINT);
 	echo $out.PHP_EOL;
 	break;
 	
 case 'write':
-	$inputPayload = $argv->find('in');
-	if (!$inputPayload && $settings['key'] === '')
-	{
-		fwrite(STDERR, 'Nothing to write: provide SETTING or --in.'.PHP_EOL);
-		exit(1);
-	}
 	$path = ($settings['key'] !== '') ? explode(':', $settings['key']) : [];
-	verboseLog($verbose, 'write source: '.($inputPayload ? '--in' : 'SETTING'));
+	var_dump($path);
+	
+	$setting2write = $settings['value'];
 	
-	if ($inputPayload)
-	{
-		$setting2write = $inputPayload;
-	}
-	else
-	{
-		$setting2write = $settings['value'];
-	}
-	verboseLog($verbose, 'write path: '.json_encode($path));
-
 	while ( ! empty($path))
 	{
 		$setting2write = [array_pop($path) => $setting2write];
 	}
-
-    $writeType = ($site !== null && $site !== false) ? $siteFlag : null;
-	$file = $cfg->buildFileName($writeType);
-	verboseLog($verbose, "write target: $file");
-	if (is_readable($file))
+	if (is_readable($file = $cfg->buildFileName()))
 	{
 		$setting2write = array_replace_recursive(require($file), $setting2write);
 		copy($file, "$file.bak");
-		verboseLog($verbose, "existing config merged from: $file");
 	}
-
-	$targetDir = dirname($file);
-	if (!is_dir($targetDir) && !mkdir($targetDir, 0775, true) && !is_dir($targetDir))
-	{
-		fwrite(STDERR, "Can not create directory: $targetDir".PHP_EOL);
-		exit(1);
-	}
-
 	$writeCfg = $cfg->create($setting2write);
-	verboseLog($verbose, 'payload prepared for writer');
-	try
-	{
-		(new SettingsWriter($writeCfg, '', $writeType))->write();
+//	var_dump($writeCfg->toArray());
+	try {
+		(new SettingsWriter($writeCfg))->write();
 		echo "Written modified settings to: $file".PHP_EOL;
 	}
 	catch (\Exception $e) {
-		fwrite(STDERR, $e->getMessage().PHP_EOL);
-		exit(1);
+		echo $e->getMessage().PHP_EOL;
 	}
 
 	break;
diff --git a/src/Settings.php b/src/Settings.php
index ebf7aeb..56e1b0f 100644
--- a/src/Settings.php
+++ b/src/Settings.php
@@ -159,18 +159,7 @@ class Settings implements \Iterator, \Countable
 			// if a mode was set in the constructor do not overwrite it
 			if (! isset($this->mode)) {
 				// if a localConf Mode is set use it, or take the default conf mode
-                // if local/default config has no mode, fall back to the first known mode (normally "prod")
-				if (isset($localConf['mode']) && is_string($localConf['mode']) && $localConf['mode'] !== '') {
-					$this->mode = $localConf['mode'];
-				}
-				elseif (isset($this->settings['mode']) && is_string($this->settings['mode']) && $this->settings['mode'] !== '') {
-					$this->mode = $this->settings['mode'];
-				}
-				else {
-					// Backward-compatible fallback for configs without explicit mode.
-					$this->mode = (string)array_key_first($this->modes);
-					$this->settings['mode'] = $this->mode;
-				}
+				$this->mode = (isset($localConf['mode'])) ? $localConf['mode'] : $this->settings['mode'];
 			} else {
 				$this->settings['mode'] = $this->mode;
 			}
@@ -369,4 +358,4 @@ class Settings implements \Iterator, \Countable
 
 /* jEdit buffer local properties {{{
   * :folding=explicit:collapseFolds=1:
-}}}*/
+}}}*/
\ No newline at end of file
diff --git a/src/SettingsWriter.php b/src/SettingsWriter.php
index 6246a9f..d6fc41c 100644
--- a/src/SettingsWriter.php
+++ b/src/SettingsWriter.php
@@ -22,8 +22,6 @@
 declare(strict_types=1);
 namespace rabe\Util;
 
-use ErrorException;
-
 /**
  * Write Settings into a File
  * @author Norbert.e.Wagner dev@norb.me
@@ -47,16 +45,13 @@ class SettingsWriter
 	 *
 	 * @param Settings $settings an object of type settings
 	 * @param String $name The name midfix for the settings File
-     * @param String|int|null $type Optional type for Settings::buildFileName(), e.g. site flag
-     */
-    public function __construct( Settings $settings, $name='', $type=null )
+	 */
+	public function __construct( Settings $settings, $name='' )
 	{
 		$this->settings = $settings;
-
-        $file = ( $type === null )
-            ? $settings->buildFileName( $name )
-            : $settings->buildFileName( $type );
-
+		
+		$file = $settings->buildFileName( $name );
+		
 		if ( ! $this->handle = fopen( $file, 'w' ) )
 		{
 			throw new ErrorException( "Can not open File: $file" );
diff --git a/tests/CfgTest.php b/tests/CfgTest.php
deleted file mode 100644
index 646bcb2..0000000
--- a/tests/CfgTest.php
+++ /dev/null
@@ -1,457 +0,0 @@
-<?php
-declare(strict_types=1);
-namespace rabe\Util\tests;
-
-use PHPUnit\Framework\TestCase;
-
-class CfgTest extends TestCase
-{
-	private string $tmpDir;
-
-	/* Lifecycle {{{ */
-	protected function setUp(): void
-	{
-		$this->tmpDir = rtrim(sys_get_temp_dir(), '/').'/util-settings-cfg-'.bin2hex(random_bytes(8));
-		mkdir($this->tmpDir, 0775, true);
-		mkdir($this->tmpDir.'/config', 0775, true);
-
-		file_put_contents(
-			$this->tmpDir.'/config/Extension.default.conf.php',
-			"<?php return [\n\t'mode' => 'prod',\n\t'module' => [\n\t\t'code' => '',\n\t\t'label' => '',\n\t\t'flags' => [\n\t\t\t'enabled' => false,\n\t\t],\n\t],\n\t'feature' => [\n\t\t'endpoint' => '',\n\t],\n];\n"
-		);
-	}
-
-	protected function tearDown(): void
-	{
-		$this->removeDir($this->tmpDir);
-	}
-	/* }}} */
-
-	/* Write Flow {{{ */
-	public function testWriteWithoutDirectoryNameUsesLocalConfigFile(): void
-	{
-		$result = $this->runWrite([
-			'module:code="X100"',
-		]);
-
-		$this->assertCfgSuccess($result);
-
-		$localFile = $this->tmpDir.'/config/Extension.conf.php';
-		$this->assertFileExists($localFile);
-
-		$cfg = require $localFile;
-		$this->assertSame('X100', $cfg['module']['code']);
-	}
-
-	public function testWriteWithoutModeFallsBackToDefaultMode(): void
-	{
-		file_put_contents(
-			$this->tmpDir.'/config/Extension.default.conf.php',
-			"<?php return [\n\t'module' => [\n\t\t'code' => '',\n\t],\n];\n"
-		);
-
-		$result = $this->runWrite([
-			'module:code="X100"',
-		]);
-
-		$this->assertCfgSuccess($result);
-		$this->assertFileExists($this->tmpDir.'/config/Extension.conf.php');
-	}
-
-	public function testWriteWithInputFileWritesMultipleSettings(): void
-	{
-		$inFile = $this->createJsonInputFile([
-			'module' => [
-				'code' => 'X100',
-				'label' => 'demo-module',
-			],
-			'feature' => [
-				'endpoint' => 'https://example.invalid/v1/resource',
-			],
-		]);
-
-		$result = $this->runWrite([
-			'--siteDir=owner_xyz',
-			'-i',
-			$inFile,
-		]);
-
-		$this->assertCfgSuccess($result);
-		$cfg = $this->loadWrittenConfig('owner_xyz');
-		$this->assertSame('X100', $cfg['module']['code']);
-		$this->assertSame('demo-module', $cfg['module']['label']);
-		$this->assertSame('https://example.invalid/v1/resource', $cfg['feature']['endpoint']);
-	}
-
-	public function testWriteAcceptsJsonStringValueInSetting(): void
-	{
-		$result = $this->runWrite([
-			'module={"code":"X100","label":"demo-module"}',
-			'--siteDir=owner_xyz',
-		]);
-
-		$this->assertCfgSuccess($result);
-		$cfg = $this->loadWrittenConfig('owner_xyz');
-		$this->assertSame('X100', $cfg['module']['code']);
-		$this->assertSame('demo-module', $cfg['module']['label']);
-	}
-
-	public function testWriteSupportsNestedPathWithColonNotation(): void
-	{
-		$result = $this->runWrite([
-			'module:flags:enabled=true',
-			'--siteDir=owner_xyz',
-		]);
-
-		$this->assertCfgSuccess($result);
-		$cfg = $this->loadWrittenConfig('owner_xyz');
-		$this->assertTrue($cfg['module']['flags']['enabled']);
-	}
-
-	public function testWriteCoercesSimpleStringValueToJsonString(): void
-	{
-		$result = $this->runWrite([
-			'module:code=X100',
-			'--siteDir=owner_xyz',
-		]);
-
-		$this->assertCfgSuccess($result);
-		$cfg = $this->loadWrittenConfig('owner_xyz');
-		$this->assertSame('X100', $cfg['module']['code']);
-	}
-
-	public function testWriteRejectsInvalidJsonStringValue(): void
-	{
-		$result = $this->runWrite([
-			'module={"code":',
-			'--siteDir=owner_xyz',
-		]);
-
-		$this->assertCfgFailure($result, 'The value does not appear to be a valid JSON string.');
-	}
-
-	public function testWriteWithSiteDirCreatesAndWritesSiteConfig(): void
-	{
-		$result = $this->runWrite([
-			'module:code="X100"',
-			'--siteDir=owner_xyz',
-		]);
-
-		$this->assertCfgSuccess($result);
-
-		$siteFile = $this->tmpDir.'/config/owner_xyz/Extension.conf.php';
-		$this->assertFileExists($siteFile);
-		$this->assertFileDoesNotExist($this->tmpDir.'/config/Extension.conf.php');
-
-		$cfg = require $siteFile;
-		$this->assertSame('X100', $cfg['module']['code']);
-	}
-
-	public function testWriteWithSiteDirMergesIntoExistingSiteConfig(): void
-	{
-		$firstWrite = $this->runWrite([
-			'module:code="X100"',
-			'--siteDir=owner_xyz',
-		]);
-		$this->assertCfgSuccess($firstWrite);
-
-		$secondWrite = $this->runWrite([
-			'module:label="demo-module"',
-			'--siteDir=owner_xyz',
-		]);
-		$this->assertCfgSuccess($secondWrite);
-
-		$cfg = $this->loadWrittenConfig('owner_xyz');
-
-		$this->assertSame('X100', $cfg['module']['code']);
-		$this->assertSame('demo-module', $cfg['module']['label']);
-	}
-
-	public function testWriteWithSiteDirUsingConfigPrefixIsNormalized(): void
-	{
-		$result = $this->runWrite([
-			'module:code="X100"',
-			'--siteDir=config/owner_xyz',
-		]);
-
-		$this->assertCfgSuccess($result);
-		$this->assertFileExists($this->tmpDir.'/config/owner_xyz/Extension.conf.php');
-		$this->assertFileDoesNotExist($this->tmpDir.'/config/config/owner_xyz/Extension.conf.php');
-	}
-
-	public function testWriteWithSiteDirUsingAbsoluteConfigPrefixIsNormalized(): void
-	{
-		$result = $this->runWrite([
-			'module:code="X100"',
-			'--siteDir='.$this->tmpDir.'/config/owner_xyz',
-		]);
-
-		$this->assertCfgSuccess($result);
-		$this->assertFileExists($this->tmpDir.'/config/owner_xyz/Extension.conf.php');
-	}
-
-	public function testWriteWithNestedSiteDirWritesToNestedSiteConfig(): void
-	{
-		$result = $this->runWrite([
-			'module:code="X100"',
-			'--siteDir=owner_xyz/sub_a',
-		]);
-
-		$this->assertCfgSuccess($result);
-		$this->assertFileExists($this->tmpDir.'/config/owner_xyz/sub_a/Extension.conf.php');
-	}
-
-	public function testWriteWithSiteDirWritesToSiteConfig(): void
-	{
-		$result = $this->runWrite([
-			'module:code="X100"',
-			'--siteDir=owner_xyz',
-		]);
-
-		$this->assertCfgSuccess($result);
-		$this->assertFileExists($this->tmpDir.'/config/owner_xyz/Extension.conf.php');
-	}
-
-	public function testWriteToExistingSiteConfigCreatesBackup(): void
-	{
-		$firstWrite = $this->runWrite([
-			'module:code="first"',
-			'--siteDir=owner_xyz',
-		]);
-		$this->assertCfgSuccess($firstWrite);
-
-		$secondWrite = $this->runWrite([
-			'module:code="second"',
-			'--siteDir=owner_xyz',
-		]);
-		$this->assertCfgSuccess($secondWrite);
-
-		$siteFile = $this->tmpDir.'/config/owner_xyz/Extension.conf.php';
-		$backupFile = $siteFile.'.bak';
-		$this->assertFileExists($backupFile);
-
-		$current = require $siteFile;
-		$backup = require $backupFile;
-		$this->assertSame('second', $current['module']['code']);
-		$this->assertSame('first', $backup['module']['code']);
-	}
-	/* }}} */
-
-	/* Show Flow {{{ */
-	public function testShowWithSiteReturnsSiteSpecificValue(): void
-	{
-		$this->runWrite([
-			'module:code="X100"',
-			'--siteDir=owner_xyz',
-		]);
-
-		$show = $this->runShow([
-			'module:code',
-			'--siteDir=owner_xyz',
-		]);
-
-		$this->assertCfgSuccess($show);
-		$this->assertStringContainsString('X100', $show['output']);
-	}
-	/* }}} */
-
-	/* Validation {{{ */
-	public function testInvalidActionReturnsError(): void
-	{
-		$result = $this->runCfg([
-			'-a',
-			$this->tmpDir,
-			'delete',
-			'Extension',
-		]);
-
-		$this->assertCfgFailure($result, "'delete' not found");
-	}
-
-	public function testSiteDirRejectsEmptyValue(): void
-	{
-		$result = $this->runWrite([
-			'module:code="X100"',
-			'--siteDir=',
-		]);
-
-		$this->assertCfgFailure($result, 'a value is required for --siteDir');
-	}
-
-	/**
-	 * @dataProvider siteDirValidationDataProvider
-	 */
-	public function testSiteDirValidation(string $siteDir, string $expectedMessage): void
-	{
-		$result = $this->runWrite([
-			'module:code="X100"',
-			'--siteDir='.$siteDir,
-		]);
-
-		$this->assertCfgFailure($result, $expectedMessage);
-	}
-
-	/**
-	 * @dataProvider inputFileValidationDataProvider
-	 */
-	public function testInputFileValidation(?string $fileContents, string $pathSuffix, string $expectedMessage): void
-	{
-		$inFile = $this->tmpDir.'/'.$pathSuffix;
-		if ($fileContents !== null) {
-			file_put_contents($inFile, $fileContents);
-		}
-
-		$result = $this->runWrite([
-			'-i',
-			$inFile,
-		]);
-
-		$this->assertCfgFailure($result, $expectedMessage);
-	}
-
-	/**
-	 * @dataProvider writePayloadSourceValidationDataProvider
-	 */
-	public function testWritePayloadSourceValidation(array $extraArgs, string $expectedMessage): void
-	{
-		$inFile = $this->createJsonInputFile(['module' => ['code' => 'X100']]);
-
-		$args = array_merge(
-			[
-				'-a',
-				$this->tmpDir,
-				'write',
-				'Extension',
-			],
-			array_map(
-				fn (string $arg): string => $arg === '__INPUT_FILE__' ? $inFile : $arg,
-				$extraArgs
-			)
-		);
-
-		$result = $this->runCfg($args);
-
-		$this->assertCfgFailure($result, $expectedMessage);
-	}
-
-	public function siteDirValidationDataProvider(): array
-	{
-		return [
-			'traversal' => ['../owner_xyz', 'Invalid directory in --siteDir'],
-			'invalid segment' => ['owner xyz', "Invalid directory name segment 'owner xyz' in --siteDir."],
-			'hidden dot segment' => ['owner_xyz/./secret', "Invalid directory in --siteDir: 'owner_xyz/./secret'."],
-			'config root only' => ['config/', 'Option --siteDir is empty.'],
-		];
-	}
-
-	public function inputFileValidationDataProvider(): array
-	{
-		return [
-			'missing file' => [null, 'missing.json', 'Input file is not readable'],
-			'invalid json' => ['{"module":', 'invalid.json', 'Input JSON is invalid'],
-			'scalar json' => ['true', 'scalar.json', 'Input JSON must decode to an object/array'],
-		];
-	}
-
-	public function writePayloadSourceValidationDataProvider(): array
-	{
-		return [
-			'missing payload source' => [[], 'Nothing to write: provide SETTING or --in.'],
-			'both payload sources' => [['module:code="x"', '-i', '__INPUT_FILE__'], 'Please use either SETTING or --in, not both.'],
-		];
-	}
-	/* }}} */
-
-	/* Helpers {{{ */
-	private function runWrite(array $args): array
-	{
-		return $this->runCfg(array_merge([
-			'-a',
-			$this->tmpDir,
-			'write',
-			'Extension',
-		], $args));
-	}
-
-	private function runShow(array $args): array
-	{
-		return $this->runCfg(array_merge([
-			'-a',
-			$this->tmpDir,
-			'show',
-			'Extension',
-		], $args));
-	}
-
-	private function createJsonInputFile(array $contents, string $name = 'extension-in.json'): string
-	{
-		$path = $this->tmpDir.'/'.$name;
-		file_put_contents($path, json_encode($contents, JSON_PRETTY_PRINT));
-
-		return $path;
-	}
-
-	private function loadWrittenConfig(?string $siteDir = null): array
-	{
-		$path = $siteDir === null
-			? $this->tmpDir.'/config/Extension.conf.php'
-			: $this->tmpDir.'/config/'.$siteDir.'/Extension.conf.php';
-
-		return require $path;
-	}
-
-	private function assertCfgSuccess(array $result): void
-	{
-		$this->assertSame(0, $result['code'], $result['output']);
-	}
-
-	private function assertCfgFailure(array $result, string $message): void
-	{
-		$this->assertSame(1, $result['code'], $result['output']);
-		$this->assertStringContainsString($message, $result['output']);
-	}
-
-	private function runCfg(array $args): array
-	{
-		$script = realpath(__DIR__.'/../bin/cfg');
-		$this->assertNotFalse($script);
-
-		$command = escapeshellarg(PHP_BINARY).' '.escapeshellarg($script);
-		foreach ($args as $arg) {
-			$command .= ' '.escapeshellarg($arg);
-		}
-		$command .= ' 2>&1';
-
-		$outputLines = [];
-		$exitCode = 0;
-		exec($command, $outputLines, $exitCode);
-
-		return [
-			'code' => $exitCode,
-			'output' => implode(PHP_EOL, $outputLines),
-		];
-	}
-
-	private function removeDir(string $dir): void
-	{
-		if (!is_dir($dir)) {
-			return;
-		}
-
-		foreach (scandir($dir) ?: [] as $entry) {
-			if ($entry === '.' || $entry === '..') {
-				continue;
-			}
-
-			$path = $dir.'/'.$entry;
-			if (is_dir($path)) {
-				$this->removeDir($path);
-			} else {
-				unlink($path);
-			}
-		}
-
-		rmdir($dir);
-	}
-	/* }}} */
-}
diff --git a/tests/SettingsTest.php b/tests/SettingsTest.php
index 09f311c..64ed411 100644
--- a/tests/SettingsTest.php
+++ b/tests/SettingsTest.php
@@ -192,15 +192,6 @@ class SettingsTest extends TestCase
 		$cfg = $this->appPath($cfg, 'localOverride')->load();
 		$this->assertEquals(42, $cfg->answer);
 	}
-
-	public function testLoadWithoutModeFallsBackToFirstKnownMode(): void
-	{
-		$cfg = new Settings();
-		$cfg = $this->appPath($cfg, 'noMode')->load();
-
-		$this->assertEquals('prod', $cfg->mode);
-		$this->assertEquals('default', $cfg->testFiles);
-	}
 	
 	/**
 	 * @dataProvider fileNameData
@@ -220,22 +211,6 @@ class SettingsTest extends TestCase
 							  
 		$this->assertEquals($path.$expected, $cfg->buildFileName($type));
 	}
-
-	public function testBuildFileNameWithPrefixAndSite(): void
-	{
-		$cfg = new Settings();
-		$cfg->appPath('./')->prefix('Extension')->site('owner_xyz');
-
-		$this->assertEquals('./config/owner_xyz/Extension.conf.php', $cfg->buildFileName(0x01));
-	}
-
-	public function testBuildFileNameWithPrefixAndNestedSite(): void
-	{
-		$cfg = new Settings();
-		$cfg->appPath('./')->prefix('Extension')->site('owner_xyz/sub_a');
-
-		$this->assertEquals('./config/owner_xyz/sub_a/Extension.conf.php', $cfg->buildFileName(0x01));
-	}
 	
 	public function fileNameData()
 	{
diff --git a/tests/cfg/noMode/config/default.conf.php b/tests/cfg/noMode/config/default.conf.php
deleted file mode 100644
index c0a0d9b..0000000
--- a/tests/cfg/noMode/config/default.conf.php
+++ /dev/null
@@ -1,3 +0,0 @@
-<?php return [
-	'testFiles' => 'default',
-];