diff --git a/.changeset/tool-call-accuracy-v5-parts.md b/.changeset/tool-call-accuracy-v5-parts.md
new file mode 100644
index 000000000..ad232ebd5
--- /dev/null
+++ b/.changeset/tool-call-accuracy-v5-parts.md
@@ -0,0 +1,7 @@
+---
+"@voltagent/scorers": patch
+---
+
+Fix the code-based `toolCallAccuracy` scorer missing tool calls in AI SDK v5 message parts
+
+The scorer read tool calls from message `parts` only when a part's `type` was exactly `"tool_call"`. AI SDK v5 encodes a tool call in message parts as `type: "tool-<toolName>"`, so those calls were skipped and the scorer reported the expected tool as not called even when it was. It now recognizes `tool-<name>` parts too, matching how it already reads them from tool-call lists.
diff --git a/packages/scorers/src/tool-call-accuracy.spec.ts b/packages/scorers/src/tool-call-accuracy.spec.ts
index e0b72fe4e..3d969e92d 100644
--- a/packages/scorers/src/tool-call-accuracy.spec.ts
+++ b/packages/scorers/src/tool-call-accuracy.spec.ts
@@ -129,6 +129,36 @@ describe("createToolCallAccuracyScorerCode", () => {
     expect(result.score).toBe(1);
   });
 
+  it("extracts tool names from AI SDK v5 message parts (type: tool-<name>)", async () => {
+    const scorer = createToolCallAccuracyScorerCode({
+      expectedTool: "searchProducts",
+    });
+
+    const result = await scorer.scorer({
+      payload: {
+        messages: [
+          {
+            id: "msg-1",
+            role: "assistant",
+            parts: [
+              {
+                type: "tool-searchProducts",
+                toolCallId: "call-1",
+                state: "output-available",
+                input: {},
+                output: {},
+              },
+            ],
+          },
+        ],
+      } satisfies ToolCallAccuracyPayload,
+      params: {} as ToolCallAccuracyParams,
+    });
+
+    expect(result.status).toBe("success");
+    expect(result.score).toBe(1);
+  });
+
   it("supports custom buildPayload mappings", async () => {
     const scorer = createToolCallAccuracyScorerCode<{ events: Array<{ name: string }> }>({
       expectedTool: "searchProducts",
diff --git a/packages/scorers/src/tool-call-accuracy.ts b/packages/scorers/src/tool-call-accuracy.ts
index 790ba663f..26dcea7de 100644
--- a/packages/scorers/src/tool-call-accuracy.ts
+++ b/packages/scorers/src/tool-call-accuracy.ts
@@ -276,7 +276,11 @@ function extractToolNamesFromParts(parts: unknown[]): string[] {
     }
 
     const partType = normalizeMessageType(part.type);
-    if (partType !== "tool_call") {
+    // AI SDK v5 encodes a tool call in message parts as `type: "tool-<name>"`,
+    // not `"tool_call"`. Accept those too (extractToolName reads the name from
+    // the type); tool results and streaming events are still excluded because
+    // shouldExtractToolNameFromType returns false for them.
+    if (partType !== "tool_call" && !shouldExtractToolNameFromType(partType)) {
       continue;
     }