According to Douglas Carswell a document has only just appeared, of which even the European Scrutiny Committee was unaware, until today.
Carswell does not actually link to the document in question (STRENGTHENING ECONOMIC GOVERNANCE IN THE EUREPORT OF THE TASK FORCE TO THE EUROPEAN COUNCIL), however I have tracked it down and it can be viewed here. Where he says:
"Despite what we were told in June, UK budgets will now become EU business. They might not be able to impose sanctions on us if they disapprove – yet. But they are involved."
This will be due to Protocol 15, which can also be viewed here - page 84.
Carswell's other point:
"According to the document, “The Task Force recommends a deeper macro-economic surveillance with the introduction of a new mechanism underpinned by a new legal framework .... applying to all EU Member States"
is point 34 of the paper linked to above.
Oh and do look at the last name of those who comprised the Task Force (page 14)! One George Osborne!
Update: Courtesy of Good Night Vienna on Calling England who points me to these to youtube videos from Parliament: