diff --git a/src/Install/CodeEnvironment/Copilot.php b/src/Install/CodeEnvironment/Copilot.php
index 2219539..b97cd40 100644
--- a/src/Install/CodeEnvironment/Copilot.php
+++ b/src/Install/CodeEnvironment/Copilot.php
@@ -30,7 +30,7 @@ public function systemDetectionConfig(Platform $platform): array
     public function projectDetectionConfig(): array
     {
         return [
-            'files' => ['.github/copilot-instructions.md'],
+            'files' => ['.github/instructions/copilot-instructions.md'],
         ];
     }
 
@@ -46,6 +46,6 @@ public function mcpClientName(): ?string
 
     public function guidelinesPath(): string
     {
-        return '.github/copilot-instructions.md';
+        return '.github/instructions/copilot-instructions.md';
     }
 }
diff --git a/tests/Unit/Install/CodeEnvironmentsDetectorTest.php b/tests/Unit/Install/CodeEnvironmentsDetectorTest.php
index cf80d84..7dacdf1 100644
--- a/tests/Unit/Install/CodeEnvironmentsDetectorTest.php
+++ b/tests/Unit/Install/CodeEnvironmentsDetectorTest.php
@@ -145,14 +145,16 @@
     $tempDir = sys_get_temp_dir().'/boost_test_'.uniqid();
     mkdir($tempDir);
     mkdir($tempDir.'/.github');
-    file_put_contents($tempDir.'/.github/copilot-instructions.md', 'test');
+    mkdir ($tempDir.'/.github/instructions');
+    file_put_contents($tempDir.'/.github/instructions/copilot-instructions.md', 'test');
 
     $detected = $this->detector->discoverProjectInstalledCodeEnvironments($tempDir);
 
     expect($detected)->toContain('copilot');
 
     // Cleanup
-    unlink($tempDir.'/.github/copilot-instructions.md');
+    unlink($tempDir.'/.github/instructions/copilot-instructions.md');
+    rmdir($tempDir.'/.github/instructions');
     rmdir($tempDir.'/.github');
     rmdir($tempDir);
 });