From d75e273d7b19824b08cf8a5c81ea31bdcf47e0d5 Mon Sep 17 00:00:00 2001
From: Luca Forstner <luca.forstner@gmail.com>
Date: Wed, 3 Jun 2026 17:15:11 +0200
Subject: [PATCH] feat: Export `LocalTrace`

---
 .changeset/full-cars-lick.md                      |  5 +++++
 js/smoke/shared/src/suites/import-verification.ts | 10 +++++++++-
 js/src/exports.ts                                 |  2 +-
 3 files changed, 15 insertions(+), 2 deletions(-)
 create mode 100644 .changeset/full-cars-lick.md

diff --git a/.changeset/full-cars-lick.md b/.changeset/full-cars-lick.md
new file mode 100644
index 000000000..9555d4cf8
--- /dev/null
+++ b/.changeset/full-cars-lick.md
@@ -0,0 +1,5 @@
+---
+"braintrust": minor
+---
+
+feat: Export `LocalTrace`
diff --git a/js/smoke/shared/src/suites/import-verification.ts b/js/smoke/shared/src/suites/import-verification.ts
index 7bd478c59..492ba2f0e 100644
--- a/js/smoke/shared/src/suites/import-verification.ts
+++ b/js/smoke/shared/src/suites/import-verification.ts
@@ -63,6 +63,7 @@ export interface BraintrustModule {
   traced?: unknown;
   traceable?: unknown;
   wrapTraced?: unknown;
+  LocalTrace?: unknown;
   updateSpan?: unknown;
   withCurrent?: unknown;
 
@@ -266,6 +267,13 @@ export const testTracingExports = register(
     assertDefined(module.wrapTraced, "wrapTraced must exist");
     assertType(module.wrapTraced, "function", "wrapTraced must be a function");
 
+    assertDefined(module.LocalTrace, "LocalTrace must exist");
+    assertType(
+      module.LocalTrace,
+      "function",
+      "LocalTrace must be a function/class",
+    );
+
     assertDefined(module.updateSpan, "updateSpan must exist");
     assertType(module.updateSpan, "function", "updateSpan must be a function");
 
@@ -276,7 +284,7 @@ export const testTracingExports = register(
       "withCurrent must be a function",
     );
 
-    return "Tracing exports verified (5 exports)";
+    return "Tracing exports verified (6 exports)";
   },
 );
 
diff --git a/js/src/exports.ts b/js/src/exports.ts
index 5712559b2..ee9f7a205 100644
--- a/js/src/exports.ts
+++ b/js/src/exports.ts
@@ -261,7 +261,7 @@ export {
 } from "./prompt-schemas";
 
 export type { Trace, SpanData, GetThreadOptions } from "./trace";
-export { SpanFetcher, CachedSpanFetcher } from "./trace";
+export { SpanFetcher, CachedSpanFetcher, LocalTrace } from "./trace";
 
 export type {
   ParentExperimentIds,