I often get requests for mending jean pocket corners. Pocket corners tend to have a lot of stress and are an area that can easily rip over time.
To repair them, I first open the corner of the pocket so I can sew in that area.
I prepare a patch from denim material.
I set up the sewing machine with the darning foot, a straight stitch, and thread that matches the jeans' color as best as possible. With an up and down motion I darn around and through the hole.
It is also usually needed on the other pocket, so I repeat the process if necessary. The last step is to topstitch the pocket back in place with a matching topstitch thread.
The mending is visible but very minimal. I hope this can help extend the life of your favorite jeans!