I've witnessed very narrow line of "thinking" in LLMs. I'm using Opus 5 1M for a month now

I asked it to modify our cicd workflows so that only a select few can raise PRs against them. Opus took 15min and added a banner to every file and did a few other things. Then I asked it, see you added all that and still since the last 2 commits you have modified the file. So whatever you did is useless

It "thought" for a second and then said that I was right