Embodiments of the present invention provide a method, system and computer program product for partial data report generation with data costing notification. In an embodiment of the invention, a method for partial data report generation with data costing notification is provided. The method includes registering a call back for an operation specified by a plug in to a diagnostic tool. The method also includes responding to invoking the plug in by generating markup with data provided by different operations of the plug in, and also with at least one hyperlink in lieu of data known to be temporally costly, the hyperlink comprising a textual indication of a temporal cost of retrieving the data known to be temporally costly and an address of an operation programmed to retrieve the data.