diff --git a/defaults/standard/modules/the_build_utility/the_build_utility.install b/defaults/standard/modules/the_build_utility/the_build_utility.install
index 62fcd118..509ddf61 100644
--- a/defaults/standard/modules/the_build_utility/the_build_utility.install
+++ b/defaults/standard/modules/the_build_utility/the_build_utility.install
@@ -52,7 +52,14 @@ function the_build_utility_install() {
   $date_settings->save(TRUE);
 
   // Install modules that we want but are not included with standard profile.
-  $install = ['admin_toolbar', 'admin_toolbar_tools', 'config_split', 'devel', 'workbench', 'workbench_tabs'];
+  $install = [
+    'admin_toolbar',
+    'admin_toolbar_tools',
+    'config_split',
+    'devel',
+    'workbench',
+    'workbench_tabs',
+  ];
   \Drupal::service('module_installer')->install($install);
 
   // Remove comment fields so that comment module can be uninstalled.
@@ -65,6 +72,14 @@ function the_build_utility_install() {
   \Drupal::state()->delete('comment.node_comment_statistics_scale');
 
   // Uninstall the modules from the standard profile that we don't want.
-  $uninstall = ['automated_cron', 'big_pipe', 'comment', 'contact', 'history', 'search', 'tour'];
+  $uninstall = [
+    'automated_cron',
+    'big_pipe',
+    'comment',
+    'contact',
+    'history',
+    'search',
+    'tour',
+  ];
   \Drupal::service('module_installer')->uninstall($uninstall);
 }
diff --git a/src/TheBuild/Acquia/AcquiaTask.php b/src/TheBuild/Acquia/AcquiaTask.php
index 718aba3b..5b75b23b 100644
--- a/src/TheBuild/Acquia/AcquiaTask.php
+++ b/src/TheBuild/Acquia/AcquiaTask.php
@@ -3,37 +3,40 @@
 namespace TheBuild\Acquia;
 
 /**
- *
+ * Phing task for making queries against the Acquia Cloud v1 API.
  */
 abstract class AcquiaTask extends \Task {
 
   /**
-   * Required. The Acquia Cloud credentials file containing a json array with
-   * 'mail' and 'key' values.
+   * Required. The Acquia Cloud credentials file.
+   *
+   * This file can be downloaded from your Acquia user account area and contains
+   * a json array with 'mail' and 'key' values.
    *
    * @var \PhingFile
    */
   protected $credentialsFile;
 
   /**
-   * Email address associated with the Acquia Cloud access. This value is set
-   * from the credentials file.
+   * Email address associated with the Acquia Cloud access.
+   *
+   * This value is set from the credentials file.
    *
    * @var string
    */
   protected $mail;
 
   /**
-   * Secure key associated with the Acquia Cloud access. This value is set from
-   * the credentials file.
+   * Secure key associated with the Acquia Cloud access.
+   *
+   * This value is set from the credentials file.
    *
    * @var string
    */
   protected $key;
 
   /**
-   * The Acquia Cloud API endpoint. This code is specific to version 1 of the
-   * API.
+   * The Acquia Cloud API v1 endpoint.
    *
    * @var string
    */
@@ -70,11 +73,13 @@ protected function loadCredentials() {
   /**
    * Build an HTTP request object against the Acquia Cloud API.
    *
-   * @param $path
+   * @param string $path
+   *   Acquia Cloud API path.
    *
    * @return \HTTP_Request2
+   *   Request object.
    */
-  protected function createRequest($path) {
+  protected function createRequest(string $path) : \HTTP_Request2 {
     $this->loadCredentials();
 
     $uri = $this->endpoint . '/' . ltrim($path, '/');
@@ -89,13 +94,13 @@ protected function createRequest($path) {
   /**
    * Example of how to query the Acquia Cloud API.
    *
-   * @param $path
+   * @param string $path
+   *   Acquia Cloud API path.
    *
    * @return string
-   *
-   * @throws \HTTP_Request2_Exception
+   *   API response.
    */
-  protected function getApiResponseBody($path) {
+  protected function getApiResponseBody(string $path) : string {
     $request = $this->createRequest($path);
 
     $this->log('GET ' . $request->getUrl());
@@ -104,7 +109,11 @@ protected function getApiResponseBody($path) {
   }
 
   /**
+   * Set the Acquia credentials file.
+   *
    * @param \PhingFile $file
+   *   Acquia credentials file.
+   *
    * @throws \IOException
    * @throws \NullPointerException
    */
diff --git a/src/TheBuild/Acquia/GetLatestBackupTask.php b/src/TheBuild/Acquia/GetLatestBackupTask.php
index e6ca136f..59b776e8 100644
--- a/src/TheBuild/Acquia/GetLatestBackupTask.php
+++ b/src/TheBuild/Acquia/GetLatestBackupTask.php
@@ -3,68 +3,61 @@
 namespace TheBuild\Acquia;
 
 /**
- *
+ * Fetch a recent backup from Acquia.
  */
 class GetLatestBackupTask extends AcquiaTask {
 
   /**
-   * Directory for storing downloaded database backups.
-   *
-   * Required parameter.
+   * Required. Directory for storing downloaded database backups.
    *
    * @var \PhingFile
    */
   protected $dir;
 
   /**
-   * The Acquia Cloud hosting realm where the site is running.
+   * Required. The Acquia Cloud hosting realm where the site is running.
+   *
+   * This also appears in a site's server names, as
+   * 'sitename.REALM.hosting.acquia.com'.
    *   - Acquia Cloud Enterprise: 'prod'
    *   - Acquia Cloud Professional: 'devcloud'
    *
-   * This also appears in a site's server names, as 'sitename.REALM.hosting.acquia.com'.
-   *
-   * Required parameter.
-   *
    * @var string
    */
   protected $realm;
 
   /**
-   * The Acquia Cloud site account name.
-   *
-   * Required parameter.
+   * Required. The Acquia Cloud site account name.
    *
    * @var string
    */
   protected $site;
 
   /**
-   * The Acquia Cloud environment. Generally 'dev', 'test', or 'prod', unless
-   * a site has RA or other additional environments.
+   * Required. The Acquia Cloud environment.
    *
-   * Required parameter.
+   * Generally 'dev', 'test', or 'prod', unless a site has RA or other
+   * additional environments.
    *
    * @var string
    */
   protected $env;
 
   /**
-   * The name of the database whose backup to download. This will correspond
-   * with the site name unless your site uses multiple databases or you are
-   * running Drupal multisites.
+   * Optional. The name of the database whose backup to download.
    *
-   * Optional parameter; defaults to matching $site.
+   * This will correspond with the site name unless your site uses multiple
+   * databases or you are running Drupal multisites.
    *
    * @var string
    */
   protected $database;
 
   /**
-   * Maximum age of the database backup in hours. If there is no backup matching
-   * this age in the current backups.json, the backups.json will be refreshed
-   * and the newest backup will be downloaded.
+   * Optional. Maximum age of the database backup in hours.
    *
-   * Optional parameter.
+   * If there is no backup matching this age in the current backups.json, the
+   * backups.json will be refreshed and the newest backup will be downloaded.
    *
    * @var int
    */
@@ -80,14 +73,18 @@ class GetLatestBackupTask extends AcquiaTask {
   protected $propertyName;
 
   /**
-   * Where to store the JSON list of database backups downloaded from the Acquia
-   * Cloud API. This is set to 'backups.json' in the directory specified by $dir.
+   * Where to store the JSON list of database backups.
+   *
+   * This info is downloaded from the Acquia Cloud API. The file is set to
+   * 'backups.json' in the directory specified by $dir.
    *
    * @var \PhingFile
    */
   protected $backupsFile;
 
   /**
+   * {@inheritdoc}
+   *
    * @throws \IOException
    * @throws \NullPointerException
    */
@@ -100,7 +97,7 @@ public function main() {
     }
 
     // Store the Acquia Cloud API JSON database backup records in our backups
-    // directory.
+    // directory..
     $this->backupsFile = new \PhingFile($this->dir, "backups-{$this->site}-{$this->database}-{$this->env}.json");
 
     // Check the database backup records for entries within our time window.
@@ -139,8 +136,8 @@ public function main() {
       $this->log("Using backup from " . $this->formatBackupTime($newest_backup) . " ({$newest_backup['id']})");
     }
 
-    // This means that we didn't have a current record in our backups json, and the Acquia Cloud API returned empty or
-    // malformed JSON.
+    // This means that we didn't have a current record in our backups json, and
+    // the Acquia Cloud API returned empty or malformed JSON.
     if (empty($newest_backup)) {
       throw new \BuildException('Failed to find a backup record.');
     }
@@ -167,10 +164,9 @@ public function main() {
    * Download a backup from Acquia Cloud.
    *
    * @param array $backup
+   *   Acquia backup info array.
    * @param \PhingFile $destination
-   *
-   * @throws \HTTP_Request2_Exception
-   * @throws \HTTP_Request2_LogicException
+   *   Destination file for the downloaded backup.
    */
   protected function downloadBackup(array $backup, \PhingFile $destination) {
     $stream = fopen($destination->getAbsolutePath(), 'wb');
@@ -198,6 +194,7 @@ protected function downloadBackup(array $backup, \PhingFile $destination) {
    * Get backup records that are within the desired time window.
    *
    * @return array
+   *   Array of available backups within the specified timeframe.
    */
   protected function getCurrentBackupRecords() {
     try {
@@ -223,16 +220,19 @@ protected function getCurrentBackupRecords() {
   }
 
   /**
-   * Get the array of backup records from the Acquia Cloud API JSON output,
-   * sorted from oldest to newest.
+   * Get the array of backup records from the Acquia Cloud API JSON output.
+   *
+   * Sorts records from oldest to newest.
    *
-   * @param $file
+   * @param \PhingFile $file
+   *   Temp file containing the Acquia Cloud API response.
    *
    * @return array
+   *   Acquia backup info array.
    *
    * @throws \BuildException
    */
-  protected function getBackupRecords($file) {
+  protected function getBackupRecords(\PhingFile $file) {
     if ($file->exists()) {
       $backups = json_decode($file->contents(), TRUE);
 
@@ -260,6 +260,9 @@ protected function getBackupRecords($file) {
 
   /**
    * Download the latest list of backup records from the Acquia Cloud API.
+   *
+   * @param \PhingFile $backups_file
+   *   The file where the downloaded backup should be stored.
    */
   protected function downloadBackupRecords(\PhingFile $backups_file) {
     $json = $this->getApiResponseBody("/sites/{$this->realm}:{$this->site}/envs/{$this->env}/dbs/{$this->database}/backups.json");
@@ -271,62 +274,85 @@ protected function downloadBackupRecords(\PhingFile $backups_file) {
   /**
    * Format the backup time to display in log messages.
    *
-   * @param $backup
+   * @param array $backup
+   *   Acquia backup info array.
    *
    * @return string
+   *   A human-readable date.
    */
-  protected function formatBackupTime($backup) {
+  protected function formatBackupTime(array $backup) {
     $time = new \DateTime('now');
     $time->setTimestamp($backup['started']);
     return $time->format(DATE_RFC850);
   }
 
   /**
-   * Setter functions.
+   * Set the Acquia realm.
+   *
+   * @param string $value
+   *   Acquia realm.
    */
-  public function setRealm($value) {
+  public function setRealm(string $value) {
     $this->realm = $value;
   }
 
   /**
+   * Set the Acquia site name.
    *
+   * @param string $value
+   *   Acquia site name.
    */
-  public function setSite($value) {
+  public function setSite(string $value) {
     $this->site = $value;
   }
 
   /**
+   * Set the Acquia environment name.
    *
+   * @param string $value
+   *   Acquia environment name.
    */
-  public function setEnv($value) {
+  public function setEnv(string $value) {
     $this->env = $value;
   }
 
   /**
+   * Set the Acquia database name.
    *
+   * @param string $value
+   *   Set the database name.
    */
-  public function setDatabase($value) {
+  public function setDatabase(string $value) {
     $this->database = $value;
   }
 
   /**
+   * Set the destination directory.
    *
+   * @param string $value
+   *   Directory path.
    */
-  public function setDir($value) {
+  public function setDir(string $value) {
     $this->dir = new \PhingFile($value);
   }
 
   /**
+   * Set the max age.
    *
+   * @param int|string $value
+   *   Max age in hours.
    */
-  public function setMaxAge($value) {
+  public function setMaxAge(int|string $value) {
     $this->maxAge = (int) $value;
   }
 
   /**
+   * Set the property name.
    *
+   * @param string $value
+   *   Property name to use for the result.
    */
-  public function setPropertyName($value) {
+  public function setPropertyName(string $value) {
     $this->propertyName = $value;
   }
 
diff --git a/src/TheBuild/CopyPropertiesTask.php b/src/TheBuild/CopyPropertiesTask.php
index 6032ae10..c65aa17a 100644
--- a/src/TheBuild/CopyPropertiesTask.php
+++ b/src/TheBuild/CopyPropertiesTask.php
@@ -3,29 +3,34 @@
 namespace TheBuild;
 
 /**
- *
+ * Copy properties matching a prefix to properties with a different prefix.
  */
 class CopyPropertiesTask extends \Task {
 
   /**
-   * @var string
    * Prefix for properties to copy.
+   *
+   * @var string
    */
   protected $fromPrefix = '';
 
   /**
-   * @var string
    * Prefix for properties to create/update.
+   *
+   * @var string
    */
   protected $toPrefix = '';
 
   /**
-   * @var bool
    * Whether to overwrite the existing properties.
+   *
+   * @var bool
    */
   protected $override = TRUE;
 
   /**
+   * Internal method to use for creating/updating properties.
+   *
    * @var string
    */
   protected $propertyMethod = 'setProperty';
@@ -63,7 +68,10 @@ public function validate() {
   }
 
   /**
+   * Set the source property prefix.
+   *
    * @param string $prefix
+   *   Prefix to copy properties from.
    */
   public function setFromPrefix($prefix) {
     if (!\StringHelper::endsWith(".", $prefix)) {
@@ -74,7 +82,10 @@ public function setFromPrefix($prefix) {
   }
 
   /**
+   * Set the destination property prefix.
+   *
    * @param string $prefix
+   *   Prefix to copy properties into.
    */
   public function setToPrefix($prefix) {
     if (!\StringHelper::endsWith(".", $prefix)) {
@@ -85,7 +96,10 @@ public function setToPrefix($prefix) {
   }
 
   /**
+   * Set override.
+   *
    * @param bool $override
+   *   Whether to override existing values.
    */
   public function setOverride($override) {
     $this->override = $override;
diff --git a/src/TheBuild/ForeachKeyTask.php b/src/TheBuild/ForeachKeyTask.php
index fd9516ce..bd4a6c05 100644
--- a/src/TheBuild/ForeachKeyTask.php
+++ b/src/TheBuild/ForeachKeyTask.php
@@ -3,46 +3,54 @@
 namespace TheBuild;
 
 /**
- *
+ * Phing task to run a target for each property in an array.
  */
 class ForeachKeyTask extends \Task {
 
   /**
-   * @var string
    * Prefix of properties to iterate over.
+   *
+   * @var string
    */
   protected $prefix = '';
 
   /**
-   * @var string
    * Name of target to execute.
+   *
+   * @var string
    */
   protected $target = '';
 
   /**
-   * @var string
    * Name of parameter to use for the key.
+   *
+   * @var string
    */
   protected $keyParam = '';
 
   /**
-   * @var string
    * Name of parameter to use for the prefix.
+   *
+   * @var string
    */
   protected $prefixParam = '';
 
   /**
+   * Keys to ignore.
+   *
    * @var array
    */
   protected $omitKeys = [];
 
   /**
+   * Instance of PhingCallTask to use/run.
+   *
    * @var \PhingCallTask
    */
   protected $callee;
 
   /**
-   *
+   * {@inheritdoc}
    */
   public function init() {
     parent::init();
@@ -70,6 +78,7 @@ public function main() {
     foreach ($project->getProperties() as $name => $value) {
       if (strpos($name, $this->prefix) === 0) {
         $property_children = substr($name, strlen($this->prefix));
+        // phpcs:ignore
         [$key, $property_grandchildren] = explode('.', $property_children, 2);
         $keys[$key] = $key;
       }
@@ -106,7 +115,10 @@ public function validate() {
   }
 
   /**
+   * Use only keys with a certain prefix.
+   *
    * @param string $value
+   *   The key prefix.
    */
   public function setPrefix($value) {
     if (!\StringHelper::endsWith(".", $value)) {
@@ -117,28 +129,40 @@ public function setPrefix($value) {
   }
 
   /**
+   * Set the target to run for each item.
+   *
    * @param string $value
+   *   Name of the target to run for each item.
    */
   public function setTarget($value) {
     $this->target = $value;
   }
 
   /**
+   * Set the parameter name to pass to the target.
+   *
    * @param string $value
+   *   Name of the parameter to pass to the target.
    */
   public function setKeyParam($value) {
     $this->keyParam = $value;
   }
 
   /**
+   * Name of the parameter where we can find the prefix.
+   *
    * @param string $value
+   *   The parameter name.
    */
   public function setPrefixParam($value) {
     $this->prefixParam = $value;
   }
 
   /**
+   * Remove a list of keys from the set of properties.
+   *
    * @param string $value
+   *   A comma-separated list of keys to remove from the array.
    */
   public function setOmitKeys($value) {
     $this->omitKeys = array_map('trim', explode(',', $value));
diff --git a/src/TheBuild/IncludeResourceTask.php b/src/TheBuild/IncludeResourceTask.php
index d13f0266..813010a0 100644
--- a/src/TheBuild/IncludeResourceTask.php
+++ b/src/TheBuild/IncludeResourceTask.php
@@ -3,25 +3,28 @@
 namespace TheBuild;
 
 /**
- *
+ * Copy or symlink a file or directory, depending on a flag.
  */
 class IncludeResourceTask extends \Task {
 
   /**
-   * @var string
    * Either 'symlink' or 'copy'.
+   *
+   * @var string
    */
   protected $mode = 'symlink';
 
   /**
-   * @var \PhingFile
    * The source file or directory to include.
+   *
+   * @var \PhingFile
    */
   protected $source;
 
   /**
-   * @var \PhingFile
    * The location to link the file to.
+   *
+   * @var \PhingFile
    */
   protected $dest = NULL;
 
@@ -96,10 +99,10 @@ public function validate() {
   /**
    * Set the artifact mode.
    *
-   * @param $mode
+   * @param string $mode
    *   Use 'symlink' to link resources, and 'copy' to copy them.
    */
-  public function setMode($mode) {
+  public function setMode(string $mode) {
     $this->mode = $mode;
   }
 
@@ -107,6 +110,7 @@ public function setMode($mode) {
    * Set the source of the resource to include.
    *
    * @param \PhingFile $source
+   *   Source file.
    */
   public function setSource(\PhingFile $source) {
     if (!$source->exists()) {
@@ -120,13 +124,17 @@ public function setSource(\PhingFile $source) {
    * Set the destination for the resource.
    *
    * @param \PhingFile $dest
+   *   File destination.
    */
   public function setDest(\PhingFile $dest) {
     $this->dest = $dest;
   }
 
   /**
+   * See SymlinkTask.
+   *
    * @param bool $relative
+   *   Whether to make relative symlinks.
    */
   public function setRelative($relative) {
     $this->relative = $relative;
diff --git a/src/TheBuild/MenuInputRequest.php b/src/TheBuild/MenuInputRequest.php
index 4c0b683f..325bc763 100644
--- a/src/TheBuild/MenuInputRequest.php
+++ b/src/TheBuild/MenuInputRequest.php
@@ -3,34 +3,43 @@
 namespace TheBuild;
 
 /**
- *
+ * Input interface that prompts the user to select from a menu of options.
  */
 class MenuInputRequest extends \InputRequest {
 
   /**
+   * Prompt to display with the menu.
+   *
    * @var string
    */
   protected $prompt;
 
   /**
+   * Array of menu option labels.
+   *
    * @var array
    */
   protected $options;
 
   /**
+   * Default menu option to select.
+   *
    * @var int
    */
   protected $defaultValue = 0;
 
   /**
+   * Set the options to display in the menu.
    *
+   * @param array $options
+   *   Menu options to display.
    */
-  public function setOptions($options) {
+  public function setOptions(array $options) {
     $this->options = array_values($options);
   }
 
   /**
-   *
+   * Generate the menu prompt.
    */
   public function getPrompt() {
     $prompt = $this->prompt . $this->getPromptChar() . "\r\n";
@@ -41,14 +50,14 @@ public function getPrompt() {
   }
 
   /**
-   *
+   * Validate the menu selection.
    */
   public function isInputValid() {
     return (isset($this->options[$this->input]));
   }
 
   /**
-   *
+   * Return the menu selection.
    */
   public function getInput() {
     return $this->options[$this->input];
diff --git a/src/TheBuild/SelectOneTask.php b/src/TheBuild/SelectOneTask.php
index 34bad40e..8aa0e8d1 100644
--- a/src/TheBuild/SelectOneTask.php
+++ b/src/TheBuild/SelectOneTask.php
@@ -3,31 +3,35 @@
 namespace TheBuild;
 
 /**
- *
+ * Allow the user to select one option from a list.
  */
 class SelectOneTask extends \Task {
 
   /**
-   * @var string
    * Required. List of values to select among.
+   *
+   * @var string
    */
   protected $list = '';
 
   /**
-   * @var string
    * String to split the list by.
+   *
+   * @var string
    */
   protected $delimiter = ',';
 
   /**
-   * @var string
    * Required. Property to populate with the selected value.
+   *
+   * @var string
    */
   protected $propertyName = '';
 
   /**
-   * @var string
    * Message to display to the user when more than one key is available.
+   *
+   * @var string
    */
   protected $message = 'Select one:';
 
@@ -77,30 +81,42 @@ public function validate() {
   }
 
   /**
+   * Set the list of options.
+   *
    * @param string $value
+   *   List of options.
    */
   public function setList($value) {
     $this->list = $value;
   }
 
   /**
+   * Set the options delimiter.
+   *
    * @param string $value
+   *   A delimiter.
    */
-  public function setDelimiter($value) {
+  public function setDelimiter(string $value) {
     $this->delimiter = $value;
   }
 
   /**
+   * Set the name of the result property.
+   *
    * @param string $value
+   *   Property name for the result.
    */
-  public function setPropertyName($value) {
+  public function setPropertyName(string $value) {
     $this->propertyName = $value;
   }
 
   /**
+   * Set the message.
+   *
    * @param string $value
+   *   Message to present with the options.
    */
-  public function setMessage($value) {
+  public function setMessage(string $value) {
     $this->message = $value;
   }
 
diff --git a/src/TheBuild/SelectPropertyKeyTask.php b/src/TheBuild/SelectPropertyKeyTask.php
index f15f903e..71910f2c 100644
--- a/src/TheBuild/SelectPropertyKeyTask.php
+++ b/src/TheBuild/SelectPropertyKeyTask.php
@@ -3,29 +3,34 @@
 namespace TheBuild;
 
 /**
- *
+ * Interactively select an option from an array of property keys.
  */
 class SelectPropertyKeyTask extends \Task {
 
   /**
-   * @var string
    * Required. Prefix for properties to copy.
+   *
+   * @var string
    */
   protected $prefix = '';
 
   /**
-   * @var string
    * Required. Property to populate with the selected value.
+   *
+   * @var string
    */
   protected $propertyName = '';
 
   /**
-   * @var string
    * Message to display to the user when more than one key is available.
+   *
+   * @var string
    */
   protected $message = 'Select one:';
 
   /**
+   * Keys to ignore.
+   *
    * @var array
    */
   protected $omitKeys = [];
@@ -47,6 +52,7 @@ public function main() {
     foreach ($project->getProperties() as $name => $value) {
       if (strpos($name, $this->prefix) === 0) {
         $property_children = substr($name, strlen($this->prefix));
+        // phpcs:ignore
         [$key, $property_grandchildren] = explode('.', $property_children, 2);
         $keys[$key] = $key;
       }
@@ -89,7 +95,10 @@ public function validate() {
   }
 
   /**
+   * Set the prefix for which options will be shown.
+   *
    * @param string $value
+   *   Keys with this prefix will be provided as options.
    */
   public function setPrefix($value) {
     if (!\StringHelper::endsWith(".", $value)) {
@@ -100,21 +109,30 @@ public function setPrefix($value) {
   }
 
   /**
+   * Set the destination property.
+   *
    * @param string $value
+   *   Property name for the selection result.
    */
   public function setPropertyName($value) {
     $this->propertyName = $value;
   }
 
   /**
+   * Set the message.
+   *
    * @param string $value
+   *   Message to display with the options.
    */
   public function setMessage($value) {
     $this->message = $value;
   }
 
   /**
+   * Exclude some of the property keys from the options.
+   *
    * @param string $value
+   *   A comma-separated list of keys to exclude.
    */
   public function setOmitKeys($value) {
     $this->omitKeys = array_map('trim', explode(',', $value));