xl-ai: Array.from called on filtered iterator — tool calls never marked complete

[gitfromwildan]

What's broken?

In packages/xl-ai/src/streamTool/vercelAiSdk/util/chatHandlers.ts line 147:

const toolCalls = Array.from(
    toolCallStreams.values().filter((data) => data.complete),
);

Map.prototype.values() returns a MapIterator, not an array. Iterators do not have a .filter() method. This throws TypeError: toolCallStreams.values(...).filter is not a function at runtime, causing all tool calls to never be detected as complete — AI tool call suggestions never appear in the UI.

In the bundled output (dist/server-CafGbRLa.js line 479) this becomes:

let p = !1, m = Array.from(s.values().filter((e) => e.complete)); // ❌

What did you expect to happen?

Tool calls that have finished streaming should be detected and shown as suggestions via the AIMenuController.

Steps to reproduce

1. Use a BlockNote editor with @blocknote/xl-ai AI extension
2. Send messages that trigger tool calls from the model
3. Observe that tool call suggestions never appear in the UI

BlockNote version

v0.52.1 (latest)

Fix

 const toolCalls = Array.from(
-    toolCallStreams.values().filter((data) => data.complete),
-);
+    toolCallStreams.values(),
+).filter((data) => data.complete);

Environment

All runtimes — this is a pure JavaScript bug, not environment-specific.

Contribution

• I'd be interested in contributing a fix for this issue