Auto-fix

One rule is auto-fixable: inserting a blank line before a control-flow statement. That is the only edit guaranteed to survive a formatter — rustfmt, Prettier, Black, and dart format all preserve a blank line between statements and none of them remove one. A fixer that fights the project’s formatter produces a diff the next format run reverts, which is worse than the finding itself.

Every other rule explains itself and leaves the change to you. The fix output shows both: what was applied, and what still needs a decision, with the suggestion attached.

Running it

monostyle fix .                # apply every fixable finding
monostyle fix . --dry-run      # show what would change
monostyle fix . --rule readability/blank-line-before-control-flow

Why only one rule is auto-fixable

Inserting a blank line before a control-flow statement is the only edit guaranteed to survive a formatter. Every other rule is a judgement call — breaking a long line, renaming an identifier, extracting a function, adding an explanatory comment — and the automated version would be worse than the problem. The fix output shows what was applied and what still needs a decision, with the suggestion attached, so the reader has the same information the fixer had.