@ai-sdk/provider-utils - npm Package Compare versions

Comparing version 5.0.5 to 5.0.6

CHANGELOG.md

 # @ai-sdk/provider-utils
 
+## 5.0.6
+
+### Patch Changes
+
+- ac306ed: Fix `StreamingToolCallTracker` finalizing streaming tool calls on parsable partial JSON. Tool calls now only finalize during stream flush, restoring the behavior of #13137: a parsable argument buffer can still be the prefix of a longer argument string, so finalizing early could act on truncated tool inputs.
+
 ## 5.0.5
@@ -4,0 +10,0 @@

package.json

 {
   "name": "@ai-sdk/provider-utils",
-  "version": "5.0.5",
+  "version": "5.0.6",
   "type": "module",
@@ -5,0 +5,0 @@ "license": "Apache-2.0",

src/streaming-tool-call-tracker.ts

@@ -7,3 +7,2 @@ import {
 import { generateId as defaultGenerateId } from './generate-id';
-import { isParsableJson } from './parse-json';
 
@@ -192,7 +191,6 @@ /**
 
-    // Check if tool call is complete
-    // (some providers send the full tool call in one chunk)
-    if (isParsableJson(toolCall.function.arguments)) {
-      this.finishToolCall(toolCall);
-    }
+    // Tool calls must not finalize before the stream ends: a parsable
+    // argument buffer can still be the prefix of a longer argument string,
+    // so acting on it early would use truncated inputs (see #13137).
+    // Finalization happens in flush().
   }
@@ -216,7 +214,2 @@
     }
-
-    // Check if tool call is complete
-    if (isParsableJson(toolCall.function.arguments)) {
-      this.finishToolCall(toolCall);
-    }
   }
@@ -223,0 +216,0 @@

No alert changes

Worsened metrics

Total package byte prevSize

763332

-0.03%

Lines of code

13179

-0.09%

No dependency changes