As an extension of my last question: Did I overstep my bounds by creating a tool “behind my manager's back”, during non-work hours?
TL;DR of that question: I created a software tool during my personal free time (non-company hours) which was meant to make my team's job much easier. The tool itself was a huge success, and I got praised for it from my manager. However, at the same time, my manager was a bit disappointed because I had done the work "behind his back", and he was not able to actually manage my work ahead of time.
It's nearly the end of the year, and that means it's time for performance reviews. At my company, employees are asked to fill out a self-evaluation, which is then reviewed in a one-on-one meeting with the manager to see if there's any discrepancies in perceived performance. One of the questions in the self-evaluation asks for some of the accomplishments for the year.
Now, I'm very proud of the tool I created, and the team has been using it extensively since I provided it to my manager. According to team metrics, it's reduced the number of "human error" mistakes (typos, unfiltered deletions, etc.) by ~95% and reduced the response time delay by ~33%. Overall the tool has been a fantastic success. However, as I explained in the linked question, my manager was not happy with me when I first revealed this side project because it undermined his authority. (I don't believe he holds any grudges about it, because he understands I was truly trying to help the team, not usurp his power.)
I now understand the error of my ways, and I certainly will not be making the same mistake again. However, I do want to make note of the application's success and take credit for work. Is there a way I can do this without negatively impacting my performance evaluation? Should I even risk it?