A method for software self-healing using an autonomous decision engine may include: receiving, at a software repository, source code; receiving mockup data comprising input data and expected output of the source code for the input data; providing the input data as an input to the source code resulting in a first actual output; identifying a difference between the expected output and the first actual output by comparing the expected output to the first actual output; applying a fix template to the source code in response to the expected output not matching the actual output; providing the input data as an input to the source code with the fix template, resulting in second actual output; comparing the expected output to the second actual output; and providing the result of the fix template to a rules prioritization engine in response to the expected output matching the second actual output.