From cfe234cb658645133f70d5e05560649b77266a0c Mon Sep 17 00:00:00 2001
From: yair <yairco1990@gmail.com>
Date: Tue, 24 Jun 2025 13:20:36 +0300
Subject: [PATCH] fix tool call with no args

---
 .gitignore              |  5 ++++-
 src/handlers/bedrock.ts | 15 +++++++++++++--
 2 files changed, 17 insertions(+), 3 deletions(-)

diff --git a/.gitignore b/.gitignore
index 105a52f..08fdf91 100644
--- a/.gitignore
+++ b/.gitignore
@@ -17,4 +17,7 @@
 
 /dist
 
-*.tsbuildinfo
\ No newline at end of file
+*.tsbuildinfo
+
+.idea/
+*.iml
diff --git a/src/handlers/bedrock.ts b/src/handlers/bedrock.ts
index 268e3fd..43ca65f 100644
--- a/src/handlers/bedrock.ts
+++ b/src/handlers/bedrock.ts
@@ -492,7 +492,6 @@ async function* createCompletionResponseStreaming(
               type: 'function',
               function: {
                 name: stream.contentBlockStart.start.toolUse.name,
-                arguments: '{}',
               },
             },
           ],
@@ -544,7 +543,19 @@ async function* createCompletionResponseStreaming(
             index: 0,
             finish_reason: finishReason,
             logprobs: null,
-            delta,
+            delta:
+              finishReason === 'tool_calls'
+                ? {
+                    tool_calls: [
+                      {
+                        index: 0,
+                        function: {
+                          arguments: '{}',
+                        },
+                      },
+                    ],
+                  }
+                : delta,
           },
         ],
         created,