diff --git a/README.md b/README.md
index 1152b4fc..c2177618 100644
--- a/README.md
+++ b/README.md
@@ -211,9 +211,10 @@ mcpServers:
 
 ```bash
 # Authentication (for OAuth-enabled providers)
-kit auth login [provider]    # Start OAuth flow (e.g., anthropic)
-kit auth logout [provider]   # Remove credentials for provider
-kit auth status              # Check authentication status
+kit auth login [provider]          # Start OAuth flow (e.g., anthropic)
+kit auth login [provider] --set-default  # Set provider's default model as system default
+kit auth logout [provider]         # Remove credentials for provider
+kit auth status                    # Check authentication status
 
 # Model database
 kit models [provider]        # List available models (optionally filter by provider)
diff --git a/www/pages/cli/commands.md b/www/pages/cli/commands.md
index 9e44b1c0..e49fe467 100644
--- a/www/pages/cli/commands.md
+++ b/www/pages/cli/commands.md
@@ -10,9 +10,10 @@ description: Complete reference for all Kit CLI subcommands.
 For OAuth-enabled providers like Anthropic.
 
 ```bash
-kit auth login [provider]    # Start OAuth flow (e.g., anthropic)
-kit auth logout [provider]   # Remove credentials for provider
-kit auth status              # Check authentication status
+kit auth login [provider]          # Start OAuth flow (e.g., anthropic)
+kit auth login [provider] --set-default  # Set provider's default model as system default
+kit auth logout [provider]       # Remove credentials for provider
+kit auth status                    # Check authentication status
 ```
 
 ## Model database