fix(ai): honor codex transport option

closes #4083

packages/coding-agent/CHANGELOG.md

@@ -24,6 +24,7 @@
 
 ### Fixed
 
+- Fixed the default transport setting to use `auto`, allowing OpenAI Codex to use cached WebSocket context when available ([#4083](https://github.com/badlogic/pi-mono/issues/4083)).
 - Fixed `pi.registerProvider()` to honor per-model `baseUrl` overrides ([#4063](https://github.com/badlogic/pi-mono/issues/4063)).
 - Fixed self-update detection so `pi` correctly identifies when a newer version is available and applies updates ([#3942](https://github.com/badlogic/pi-mono/issues/3942), [#3980](https://github.com/badlogic/pi-mono/issues/3980), [#3922](https://github.com/badlogic/pi-mono/issues/3922)).
 

packages/coding-agent/src/core/settings-manager.ts

@@ -78,7 +78,7 @@ export interface Settings {
 	defaultProvider?: string;
 	defaultModel?: string;
 	defaultThinkingLevel?: "off" | "minimal" | "low" | "medium" | "high" | "xhigh";
-	transport?: TransportSetting; // default: "sse"
+	transport?: TransportSetting; // default: "auto"
 	steeringMode?: "all" | "one-at-a-time";
 	followUpMode?: "all" | "one-at-a-time";
 	theme?: string;
@@ -656,7 +656,7 @@ export class SettingsManager {
 	}
 
 	getTransport(): TransportSetting {
-		return this.settings.transport ?? "sse";
+		return this.settings.transport ?? "auto";
 	}
 
 	setTransport(transport: TransportSetting): void {