perl-patterns

Replace the strict/warnings boilerplate with a single `use v5.36` pragma, convert manual `@_` unpacking to subroutine signatures, and swap circumfix dereferencing for postfix syntax like `$ref->@*`. The Skill provides a legacy-to-modern quick reference table for common replacements.

Prefer Moo for lightweight, modern OO with type constraints via Types::Standard. Use Moose only when you need its full metaprotocol. On Perl 5.38+, the experimental native `class` keyword (Corinna) is another option.

Use three-argument open with a lexical filehandle and an encoding layer, combined with the autodie pragma to eliminate manual `or die` checks. Avoid two-arg open entirely, since embedding user data in the mode string creates shell injection risks.

Use Try::Tiny for reliable try/catch semantics on Perl 5.36, or the native try/catch syntax available experimentally in Perl 5.40+. Plain eval/die works but requires careful checking of `$@` immediately after the eval block.

Declare dependencies in a cpanfile with version constraints, then install them locally using Carton. Run scripts with `carton exec` so the project uses its own isolated dependency set rather than system-wide modules.