Make model and permission choices provider-specific

server/src/config.rs

@@ -258,6 +258,26 @@ impl DriverKind {
             Self::Echo | Self::LlamaCpp => false,
         }
     }
+
+    /// Permission choices the phone can offer for this kind, in display order.
+    /// The driver remains responsible for translating these stable values into
+    /// its CLI's arguments or control protocol.
+    pub fn permission_modes(self) -> &'static [&'static str] {
+        match self {
+            Self::ClaudeCli => &["manual", "acceptEdits", "auto", "bypassPermissions", "plan"],
+            Self::CodexCli => &["workspace-write", "read-only", "danger-full-access"],
+            Self::Echo | Self::LlamaCpp => &[],
+        }
+    }
+
+    /// The mode used when a new-session form first selects this kind.
+    pub fn default_permission_mode(self) -> Option<&'static str> {
+        match self {
+            Self::ClaudeCli => Some("auto"),
+            Self::CodexCli => Some("workspace-write"),
+            Self::Echo | Self::LlamaCpp => None,
+        }
+    }
 }
 
 #[derive(Debug, Clone, Serialize, Deserialize)]