Core principle. Count layers between question and answer, and hidden state in the reader’s head; collapse one-caller wrappers and shrink mutable scope.

Applies when reviewing or shaping code that is hard to trace. The clearest pstack expression of pattern-deep-modules — it names the two costs (indirection depth, hidden state) as things to literally count.

See Also

  • pstack-poteto-mode — indexes this principle inline and reads the index at task start.
  • pstack — the twenty-three-principle set this belongs to.