diff --git a/lib/Drupal/Component/Discovery/DiscoverableInterface.php b/lib/Drupal/Component/Discovery/DiscoverableInterface.php
new file mode 100644
index 0000000..c04556f
--- /dev/null
+++ b/lib/Drupal/Component/Discovery/DiscoverableInterface.php
@@ -0,0 +1,23 @@
+<?php
+
+/**
+ * @file
+ * Contains \Drupal\Component\Discovery\DiscoverableInterface.
+ */
+
+namespace Drupal\Component\Discovery;
+
+/**
+ * Interface for classes providing a type of discovery.
+ */
+interface DiscoverableInterface {
+
+  /**
+   * Returns an array of discoverable items.
+   *
+   * @return array
+   *   An array of discovered data keyed by provider.
+   */
+  public function findAll();
+
+}
diff --git a/lib/Drupal/Component/Discovery/YamlDiscovery.php b/lib/Drupal/Component/Discovery/YamlDiscovery.php
new file mode 100644
index 0000000..bf4ee15
--- /dev/null
+++ b/lib/Drupal/Component/Discovery/YamlDiscovery.php
@@ -0,0 +1,74 @@
+<?php
+
+/**
+ * @file
+ * Contains \Drupal\Component\Discovery\YamlDiscovery.
+ */
+
+namespace Drupal\Component\Discovery;
+
+use Drupal\Component\Serialization\Yaml;
+
+/**
+ * Provides discovery for YAML files within a given set of directories.
+ */
+class YamlDiscovery implements DiscoverableInterface {
+
+  /**
+   * The base filename to look for in each directory.
+   *
+   * @var string
+   */
+  protected $name;
+
+  /**
+   * An array of directories to scan, keyed by the provider.
+   *
+   * @var array
+   */
+  protected $directories = array();
+
+  /**
+   * Constructs a YamlDiscovery object.
+   *
+   * @param string $name
+   *   The base filename to look for in each directory. The format will be
+   *   $provider.$name.yml.
+   * @param array $directories
+   *   An array of directories to scan, keyed by the provider.
+   */
+  public function __construct($name, array $directories) {
+    $this->name = $name;
+    $this->directories = $directories;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function findAll() {
+    $all = array();
+    foreach ($this->findFiles() as $provider => $file) {
+      $all[$provider] = Yaml::decode(file_get_contents($file));
+    }
+
+    return $all;
+  }
+
+  /**
+   * Returns an array of file paths, keyed by provider.
+   *
+   * @return array
+   */
+  protected function findFiles() {
+    $files = array();
+    foreach ($this->directories as $provider => $directory) {
+      $file = $directory . '/' . $provider . '.' . $this->name . '.yml';
+      if (file_exists($file)) {
+        $files[$provider] = $file;
+      }
+    }
+    return $files;
+  }
+
+}
+