PolitiFact said there were at least seven such plans among presidential candidates and gave Clinton a "False" rating (bold emphasis added):
While Clinton’s plan is more detailed, by some measurements, than those of other candidates, at least seven other candidates in both parties have released multi-point plans for taking on ISIS. Some plans -- such as those from Bush and Rubio -- approach Clinton’s in either length or degree of detail. In fact, there’s a significant degree of overlap between the agenda items in Clinton’s plan and in plans released by other candidates.Clinton, using PolitiFact's estimates as a basis, underestimated the number of specific plans for defeating ISIS by 86 percent.
We don’t see strong evidence for Clinton’s claim that she’s the only member of the 2016 field with a "specific plan." We rate the claim False.
We found a close parallel to this case involving Republican candidate Rick Santorum (an 83 percent underestimation). PolitiFact rated Santorum "False" also.