diff --git a/packages/coding-agent/src/core/agent-session-runtime.ts b/packages/coding-agent/src/core/agent-session-runtime.ts
index be855ea4..7f29275a 100644
--- a/packages/coding-agent/src/core/agent-session-runtime.ts
+++ b/packages/coding-agent/src/core/agent-session-runtime.ts
@@ -232,7 +232,9 @@ export class AgentSessionRuntime {
 
 		const previousSessionFile = this.session.sessionFile;
 		const sessionDir = this.session.sessionManager.getSessionDir();
-		const sessionManager = SessionManager.create(this.cwd, sessionDir);
+		const sessionManager = this.session.sessionManager.isPersisted()
+			? SessionManager.create(this.cwd, sessionDir)
+			: SessionManager.inMemory(this.cwd);
 		if (options?.parentSession) {
 			sessionManager.newSession({ parentSession: options.parentSession });
 		}