I only use Claude Code with Opus 4.6 on High Effort.
I always, ALWAYS treat my “new job” as writing a detailed ticket for whatever it is I need to do.
I give the model access to a DB replica of my prod DB that I create manually.
I do NOT waste time with custom agents, Claude.md files or any of that stuff.
When I put ALL of the above together, the results ARE THE PROMISED LAND: I simply haven’t written a single line of code manually in the last 3 months.
For me I have been a coder since a very young age and I am nearing the end of my career now. I still love writing code to problem solve just as much as the first day I learnt to code. The thought of something taking that task away from me doesn't fill me with glee.
A parallel for me is if I enjoyed puzzle pages and those brought me with joy and satisfaction employing my grey matter to solve, I just wouldn't find it interesting to have an agent complete the forms to me, with me simply guiding the agent to clues.