diff --git a/src/Configurator/AddLinesConfigurator.php b/src/Configurator/AddLinesConfigurator.php
index 99443575..686abfec 100644
--- a/src/Configurator/AddLinesConfigurator.php
+++ b/src/Configurator/AddLinesConfigurator.php
@@ -129,8 +129,9 @@ public function executeConfigure(Recipe $recipe, $config): void
                 continue;
             }
             $target = isset($patch['target']) ? $patch['target'] : null;
+            $createIfMissing = isset($patch['create_if_missing']) ? $patch['create_if_missing'] : null;
 
-            $newContents = $this->getPatchedContents($file, $content, $position, $target, $warnIfMissing);
+            $newContents = $this->getPatchedContents($file, $content, $position, $target, $warnIfMissing, $createIfMissing);
             $this->fileContents[$file] = $newContents;
         }
     }
@@ -164,7 +165,7 @@ public function executeUnconfigure(Recipe $recipe, $config): void
         }
     }
 
-    private function getPatchedContents(string $file, string $value, string $position, ?string $target, bool $warnIfMissing): string
+    private function getPatchedContents(string $file, string $value, string $position, ?string $target, bool $warnIfMissing, ?string $createIfMissing = null): string
     {
         $fileContents = $this->readFile($file);
 
@@ -192,6 +193,15 @@ private function getPatchedContents(string $file, string $value, string $positio
                         break;
                     }
                 }
+
+                if (!$targetFound && null !== $createIfMissing) {
+                    // Insert the create_if_missing content at the end of the file, then add the value after the target
+                    $createIfMissingLines = explode("\n", $createIfMissing);
+                    $lines = array_merge($lines, $createIfMissingLines);
+                    $lines[] = $value;
+                    $targetFound = true;
+                }
+
                 $fileContents = implode("\n", $lines);
 
                 if (!$targetFound) {
diff --git a/tests/Configurator/AddLinesConfiguratorTest.php b/tests/Configurator/AddLinesConfiguratorTest.php
index 03602b16..918e97a3 100644
--- a/tests/Configurator/AddLinesConfiguratorTest.php
+++ b/tests/Configurator/AddLinesConfiguratorTest.php
@@ -198,6 +198,66 @@ public function testSkippedIfTargetCannotBeFound()
         $this->assertSame($originalContent, $this->readFile('webpack.config.js'));
     }
 
+    public function testCreateIfMissingCreatesTargetAndAddsContent()
+    {
+        $this->copyFixture('ai_without_store.yaml', 'config/packages/ai.yaml');
+
+        $this->runConfigure([
+            [
+                'file' => 'config/packages/ai.yaml',
+                'position' => 'after_target',
+                'target' => '    store:',
+                'create_if_missing' => '    store:',
+                'content' => "        azuresearch:\n            default:\n                endpoint: '%env(AZURE_SEARCH_ENDPOINT)%'",
+            ],
+        ]);
+
+        $this->assertSame(
+            $this->loadFixture('ai_without_store_expected.yaml'),
+            $this->readFile('config/packages/ai.yaml')
+        );
+    }
+
+    public function testCreateIfMissingWithExistingTarget()
+    {
+        $this->copyFixture('ai_with_store.yaml', 'config/packages/ai.yaml');
+
+        $this->runConfigure([
+            [
+                'file' => 'config/packages/ai.yaml',
+                'position' => 'after_target',
+                'target' => '    store:',
+                'create_if_missing' => '    store:',
+                'content' => "        azuresearch:\n            default:\n                endpoint: '%env(AZURE_SEARCH_ENDPOINT)%'",
+            ],
+        ]);
+
+        $this->assertSame(
+            $this->loadFixture('ai_with_store_expected.yaml'),
+            $this->readFile('config/packages/ai.yaml')
+        );
+    }
+
+    public function testCreateIfMissingNotUsedWhenOptionNotSet()
+    {
+        $this->copyFixture('ai_without_store.yaml', 'config/packages/ai.yaml');
+
+        $this->runConfigure([
+            [
+                'file' => 'config/packages/ai.yaml',
+                'position' => 'after_target',
+                'target' => '    store:',
+                'content' => "        azuresearch:\n            default:\n                endpoint: '%env(AZURE_SEARCH_ENDPOINT)%'",
+            ],
+        ]);
+
+        // Content should remain unchanged since target was not found and no create_if_missing was provided
+        $this->assertSame(
+            $this->loadFixture('ai_without_store.yaml'),
+            $this->readFile('config/packages/ai.yaml')
+        );
+    }
+
     public function testPatchIgnoredIfValueAlreadyExists()
     {
         $originalContents = <<<JS
@@ -677,6 +737,16 @@ private function readFile(string $filename): string
         return file_get_contents(FLEX_TEST_DIR.'/'.$filename);
     }
 
+    private function loadFixture(string $filename): string
+    {
+        return rtrim(file_get_contents(__DIR__.'/Fixtures/AddLines/'.$filename), "\n");
+    }
+
+    private function copyFixture(string $fixtureName, string $targetPath): void
+    {
+        $this->saveFile($targetPath, $this->loadFixture($fixtureName));
+    }
+
     private function createComposerMockWithPackagesInstalled(array $packages)
     {
         $packages = array_map(fn ($package) => explode(':', $package), $packages);
diff --git a/tests/Configurator/Fixtures/AddLines/ai_with_store.yaml b/tests/Configurator/Fixtures/AddLines/ai_with_store.yaml
new file mode 100644
index 00000000..8d23b232
--- /dev/null
+++ b/tests/Configurator/Fixtures/AddLines/ai_with_store.yaml
@@ -0,0 +1,5 @@
+ai:
+    store:
+        pinecone:
+            default:
+                api_key: 'xxx'
diff --git a/tests/Configurator/Fixtures/AddLines/ai_with_store_expected.yaml b/tests/Configurator/Fixtures/AddLines/ai_with_store_expected.yaml
new file mode 100644
index 00000000..ad9f1263
--- /dev/null
+++ b/tests/Configurator/Fixtures/AddLines/ai_with_store_expected.yaml
@@ -0,0 +1,8 @@
+ai:
+    store:
+        azuresearch:
+            default:
+                endpoint: '%env(AZURE_SEARCH_ENDPOINT)%'
+        pinecone:
+            default:
+                api_key: 'xxx'
diff --git a/tests/Configurator/Fixtures/AddLines/ai_without_store.yaml b/tests/Configurator/Fixtures/AddLines/ai_without_store.yaml
new file mode 100644
index 00000000..49312f76
--- /dev/null
+++ b/tests/Configurator/Fixtures/AddLines/ai_without_store.yaml
@@ -0,0 +1,4 @@
+ai:
+    platform:
+        default:
+            api_key: '%env(OPENAI_API_KEY)%'
diff --git a/tests/Configurator/Fixtures/AddLines/ai_without_store_expected.yaml b/tests/Configurator/Fixtures/AddLines/ai_without_store_expected.yaml
new file mode 100644
index 00000000..f953375a
--- /dev/null
+++ b/tests/Configurator/Fixtures/AddLines/ai_without_store_expected.yaml
@@ -0,0 +1,8 @@
+ai:
+    platform:
+        default:
+            api_key: '%env(OPENAI_API_KEY)%'
+    store:
+        azuresearch:
+            default:
+                endpoint: '%env(AZURE_SEARCH_ENDPOINT)%'