fix: support raw JSON response tool arguments

common/json_test.go

@@ -0,0 +1,43 @@
+package common
+
+import (
+	"encoding/json"
+	"testing"
+
+	"github.com/stretchr/testify/require"
+)
+
+func TestJsonRawMessageToString(t *testing.T) {
+	tests := []struct {
+		name string
+		data json.RawMessage
+		want string
+	}{
+		{
+			name: "object",
+			data: json.RawMessage(`{"city":"Paris","days":0,"strict":false}`),
+			want: `{"city":"Paris","days":0,"strict":false}`,
+		},
+		{
+			name: "string",
+			data: json.RawMessage(`"{\"city\":\"Paris\",\"days\":0,\"strict\":false}"`),
+			want: `{"city":"Paris","days":0,"strict":false}`,
+		},
+		{
+			name: "null",
+			data: json.RawMessage(`null`),
+			want: "",
+		},
+		{
+			name: "empty",
+			data: nil,
+			want: "",
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			require.Equal(t, tt.want, JsonRawMessageToString(tt.data))
+		})
+	}
+}