Function tool_memory_init_locked

ds4_server.c:7775–7780

    if (item->is_custom || responses_tool_call_is_tool_search(tc, order)) return true;
    buf args = {0};
    append_json_object_string(&args, tc->arguments);
    buf b = {0};
    buf_printf(&b,
        "{\"type\":\"response.function_call_arguments.delta\","
        "\"item_id\":\"%s\",\"output_index\":%d,\"delta\":",
        item->fc_id, item->output_index);
    buf_append(&b, args.ptr ? args.ptr : "\"\"", args.ptr ? args.len : 2);
    buf_putc(&b, '}');
    bool ok = responses_sse_emit_event(fd, st, b.ptr);