What I look for in an oncall handoff

I used to add a layer of abstraction the first time I saw a pattern repeat. Now I wait for the third. The waiting is uncomfortable, but the abstractions that survive that wait tend to last.

Most retry logic I've removed turned out to be hiding a real bug. The retries made the failure invisible, and the bug compounded for months in the background.

I trust monorepos more in the second year than I did in the first. Most of the early friction goes away once the tooling catches up.