From 33f2433095c454eac28bb37c9ebd609308168736 Mon Sep 17 00:00:00 2001
From: cpacker <packercharles@gmail.com>
Date: Fri, 24 Oct 2025 23:52:46 -0700
Subject: [PATCH] fix: patch bug in tool registry that was losing tools on
 build

---
 src/tools/manager.ts | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/src/tools/manager.ts b/src/tools/manager.ts
index 46d8315..37a4fdc 100644
--- a/src/tools/manager.ts
+++ b/src/tools/manager.ts
@@ -47,7 +47,17 @@ export type ToolExecutionResult = {
 
 type ToolRegistry = Map<string, ToolDefinition>;
 
-const toolRegistry: ToolRegistry = new Map();
+// Use globalThis to ensure singleton across bundle
+// This prevents Bun's bundler from creating duplicate instances of the registry
+const REGISTRY_KEY = Symbol.for("@letta/toolRegistry");
+function getRegistry(): ToolRegistry {
+  if (!(globalThis as any)[REGISTRY_KEY]) {
+    (globalThis as any)[REGISTRY_KEY] = new Map();
+  }
+  return (globalThis as any)[REGISTRY_KEY];
+}
+
+const toolRegistry = getRegistry();
 
 /**
  * Generates a Python stub for a tool that will be executed client-side.