diff --git a/docs/00-prerequisites.md b/docs/00-prerequisites.md
index 9449ccc..48574a9 100644
--- a/docs/00-prerequisites.md
+++ b/docs/00-prerequisites.md
@@ -147,6 +147,13 @@ azd auth login
 
 Both commands will open a browser window for authentication. Sign in with your Azure credentials.
 
+> ⚠️ **Important**
+> In some environments, the VS Code integrated terminal may crash or close during the interactive login flow.
+> If this happens, use device code authentication instead:
+> ```bash
+> az login --use-device-code
+> ```
+
 ## Troubleshooting
 
 ### Common issues
diff --git a/docs/01-infrastructure-setup.md b/docs/01-infrastructure-setup.md
index 765e3bc..9bd3ebb 100644
--- a/docs/01-infrastructure-setup.md
+++ b/docs/01-infrastructure-setup.md
@@ -63,11 +63,11 @@ You'll use the Azure Developer CLI to deploy all required Azure resources using
 
     Sign in with your Azure credentials when prompted. This authentication is needed for the Python SDK and other Azure operations in subsequent labs.
 
-    > ⚠️ **Important **
+    > ⚠️ **Important**
     > In some environments, the VS Code integrated terminal may crash or close during the interactive login flow.
-    > If this happens, authenticate using explicit credentials instead:
+    > If this happens, use device code authentication instead:
     > ```powershell
-    > az login --username <your-username> --password <your-password>
+    > az login --use-device-code
     > ```
 
 1. Provision resources:
diff --git a/docs/02-prompt-management.md b/docs/02-prompt-management.md
index b630223..790fd96 100644
--- a/docs/02-prompt-management.md
+++ b/docs/02-prompt-management.md
@@ -76,9 +76,9 @@ Now you'll use the Azure Developer CLI to deploy all required Azure resources.
 
     > ⚠️ **Important**
     > In some environments, the VS Code integrated terminal may crash or close during the interactive login flow.
-    > If this happens, authenticate using explicit credentials instead:
+    > If this happens, use device code authentication instead:
     > ```powershell
-    > az login --username <your-username> --password <your-password>
+    > az login --use-device-code
     > ```
 
 1. Provision resources:
@@ -234,7 +234,7 @@ Next, deploy a second version with enhanced capabilities.
    To:
    ```python
     prompt_file = Path(__file__).parent / 'prompts' / 'v2_instructions.txt'
-    ```
+   ```
 
 1. Run the agent creation script:
 
diff --git a/docs/03-design-optimize-prompts.md b/docs/03-design-optimize-prompts.md
index eb27ce8..6ce5627 100644
--- a/docs/03-design-optimize-prompts.md
+++ b/docs/03-design-optimize-prompts.md
@@ -76,9 +76,9 @@ Now you'll use the Azure Developer CLI to deploy all required Azure resources.
 
     > ⚠️ **Important**
     > In some environments, the VS Code integrated terminal may crash or close during the interactive login flow.
-    > If this happens, authenticate using explicit credentials instead:
+    > If this happens, use device code authentication instead:
     > ```powershell
-    > az login --username <your-username> --password <your-password>
+    > az login --use-device-code
     > ```
 
 1. Provision resources:
diff --git a/docs/04-automated-evaluation.md b/docs/04-automated-evaluation.md
index d5a6efc..956cd14 100644
--- a/docs/04-automated-evaluation.md
+++ b/docs/04-automated-evaluation.md
@@ -82,9 +82,9 @@ Now you'll use the Azure Developer CLI to deploy all required Azure resources.
 
     > ⚠️ **Important**
     > In some environments, the VS Code integrated terminal may crash or close during the interactive login flow.
-    > If this happens, authenticate using explicit credentials instead:
+    > If this happens, use device code authentication instead:
     > ```powershell
-    > az login --username <your-username> --password <your-password>
+    > az login --use-device-code
     > ```
 
 1. Provision resources:
diff --git a/docs/05-monitoring-tracing.md b/docs/05-monitoring-tracing.md
index 3a5cbc6..d791847 100644
--- a/docs/05-monitoring-tracing.md
+++ b/docs/05-monitoring-tracing.md
@@ -81,9 +81,9 @@ Now you'll use the Azure Developer CLI to deploy all required Azure resources.
 
     > ⚠️ **Important**
     > In some environments, the VS Code integrated terminal may crash or close during the interactive login flow.
-    > If this happens, authenticate using explicit credentials instead:
+    > If this happens, use device code authentication instead:
     > ```powershell
-    > az login --username <your-username> --password <your-password>
+    > az login --use-device-code
     > ```
 
 1. Provision resources:
diff --git a/evaluation_results.txt b/evaluation_results.txt
deleted file mode 100644
index 7577fab..0000000
--- a/evaluation_results.txt
+++ /dev/null
@@ -1,15 +0,0 @@
-================================================================================
- Trail Guide Agent - Evaluation Results
-================================================================================
-
-  Eval ID      : eval_7c4c645fbe2c4e9e83d2c1b3af300106
-  Run ID       : evalrun_97c6ed6859324fc0bb01dce5df3ecb75
-  Total items  : 89
-  Errored items: 0
-  Scored items : 89
-
-Average Scores (1-5 scale, threshold: 3)
-  No scores returned — open Azure AI Foundry portal > Evaluations for details.
-
-Pass Rates (score >= 3)
-  No scores returned.
\ No newline at end of file