Run /clear between unrelated tasks.
Old history is re-read on every turn and costs money, and it can pull the next task off course.
/clear
Context
The habits that make the difference. Tick the ones you already keep and see what is left.
0 / 4 you keep
Run
After two failed corrections, clear and write a better prompt.
A third correction piles more failed attempts into the window, which makes the next one worse.
Delegate large reads to subagents.
The file contents stay in the subagent window and you get back a short summary.
Run /compact with a focus at natural breaks.
Auto-compaction mid-task can summarize away exactly what the task needs.
/compact keep the failing test and the plan