Tiny, isolated, but awesomely useful CLI scriptlets, for me, seem to be the sweet spot. Little shining rays spreading out from the veins of my own familiarity.
The downside, the Achilles Heel of LLMs, so far as I can tell, is using the system to assist in maintaining large, sprawling, and largely pointless legacy codebases. Somewhere you have to keep many many many stupid things alive. I swear I can almost sense Claude's frustration with some of this shit. Then you get frustrated, and then Claude wants to agree with you so it acts even more frustrated, and the gyre thus widens. You're just cussing at everything with a machine. Which can be fun - Claude is often surprisingly funny - but not productive.
[1] I know absolutely nothing about positively everything, but have the attention span of a squirrel.