A system includes a mandatory comment in a software productivity tool. In various implementations, the system includes a computer that carries out actions including: opening in the software productivity tool a document stored in a non-volatile hardware data storage device; receiving a definition of an actionable data item of the document; receiving a request for an action associated with the item; determining if the action triggers a predefined comment rule; if triggered, then: requiring a mandatory comment; storing the accepted entered comment in the non-volatile hardware data storage device; and performing the requested action.