From 31db2be5d7b5d584d79b35ae027b0c3d4ab332c4 Mon Sep 17 00:00:00 2001
From: paulbettner <paulbettner@playfulstudios.com>
Date: Mon, 22 Dec 2025 12:57:41 -0600
Subject: [PATCH] feat: Task subagents: allow overriding spawned letta
 executable (#340)

---
 src/agent/subagents/manager.ts | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/agent/subagents/manager.ts b/src/agent/subagents/manager.ts
index 8b2fe73..1938c4f 100644
--- a/src/agent/subagents/manager.ts
+++ b/src/agent/subagents/manager.ts
@@ -382,8 +382,10 @@ async function executeSubagent(
   try {
     const cliArgs = buildSubagentArgs(type, config, model, userPrompt);
 
-    // Spawn letta in headless mode with stream-json output
-    const proc = spawn("letta", cliArgs, {
+    // Spawn Letta Code in headless mode.
+    // Some environments may have a different `letta` binary earlier in PATH.
+    const lettaCmd = process.env.LETTA_CODE_BIN || "letta";
+    const proc = spawn(lettaCmd, cliArgs, {
       cwd: process.cwd(),
       env: process.env,
     });