After loading a list of keywords (or just one), the tool could check the SERP data and calculate the "All In Title results" and "total search volume" to provide a yes/no validation for KGR keywords.
So for each of the keywords you upload, or select from the list of keywords, there would be a section on dashboard showing the following metrix:
1) Number of "All-in-title" results for that keyword - this is not the normal search count, the search is modified to return ONLY all in title results.
2) total search volume for that keyword (this is already present)
3) based on (1) and (2), the tool would say either the keyword/s is a KGR keyword or not.