From 69513ff9668d101ba4a54608d0b00cde3ab80f78 Mon Sep 17 00:00:00 2001
From: christinatong01 <christina@letta.com>
Date: Tue, 27 Jan 2026 14:23:16 -0800
Subject: [PATCH] allow new convo creation on createSession

---
 README.md        |  3 +++
 src/transport.ts | 12 ++++--------
 2 files changed, 7 insertions(+), 8 deletions(-)

diff --git a/README.md b/README.md
index 3ea853a..1c70c31 100644
--- a/README.md
+++ b/README.md
@@ -104,6 +104,9 @@ await using session4 = resumeSession(agentId, { defaultConversation: true });
 
 // Resume last used session (agent + conversation)
 await using session5 = createSession({ continue: true });
+
+// Create new agent with a new (non-default) conversation
+await using session6 = createSession({ newConversation: true });
 ```
 
 **Key concepts:**
diff --git a/src/transport.ts b/src/transport.ts
index 503e4c0..6836193 100644
--- a/src/transport.ts
+++ b/src/transport.ts
@@ -182,14 +182,6 @@ export class SubprocessTransport {
       );
     }
 
-    // newConversation requires agentId
-    if (this.options.newConversation && !this.options.agentId) {
-      throw new Error(
-        "'newConversation' requires agentId. " +
-        "Use resumeSession(agentId, { newConversation: true })."
-      );
-    }
-
     // Conversation and agent handling
     if (this.options.continue) {
       // Resume last session (agent + conversation)
@@ -210,6 +202,10 @@ export class SubprocessTransport {
     } else {
       // Create new agent
       args.push("--new-agent");
+      if (this.options.newConversation) {
+        // Also create new conversation (not default)
+        args.push("--new");
+      }
     }
 
     // Model