fix: Claude tool calls work incorrectly when tool doesn't require any arguments or flags; would provide an empty JSON object or error on no args

2026-02-01 17:05:36 -07:00
parent f56ed7d005
commit 25c0885dcc
1 changed files with 6 additions and 3 deletions
@@ -93,10 +93,13 @@ pub async fn claude_chat_completions_streaming(
                        data["content_block"]["id"].as_str(),
                    ) {
                        if !function_name.is_empty() {
-                            let arguments: Value =
+                            let arguments: Value = if function_arguments.is_empty() {
+                                json!({})
+                            } else {
                                function_arguments.parse().with_context(|| {
                                    format!("Tool call '{function_name}' has non-JSON arguments '{function_arguments}'")
-                                })?;
+                                })?
+                            };
                            handler.tool_call(ToolCall::new(
                                function_name.clone(),
                                arguments,
@@ -286,7 +289,7 @@ pub fn claude_build_chat_completions_body(
        body["tools"] = functions
            .iter()
            .map(|v| {
-								if v.parameters.type_value.is_none() {
+								if v.parameters.is_empty_properties() {
 									json!({
                    "name": v.name,
                    "description": v.description,