Perl 🐪 Weekly #794 - Perl and AI

Originally published at Perl Weekly 794

Hi there,

The combination of artificial intelligence and automatic tooling in open source software maintenance has emerged as a common trend throughout modern development ecosystems, including CPAN. Writers and maintainers are experimenting with various ways of work, ranging from the use of generative AI for quick patch creation and refactoring to the creation of development tools that interact with external language models. These innovations point out to a wider trend in the industry aimed at incorporating AI features into typical software life cycles and source code maintenance processes.

Advocates of AI based development stress major benefits associated with maintainability, speed of work, and solving problems, particularly in the context of outdated programs. Thanks to automation of repetitive processes handled by AI or code-generating programs, the developer team would be able to fix errors, create documentation easier, and minimise routine labour costs.

Unsupervised machine-generated codes bring along the chances of bug occurrences, the chances of APIs not existing and the issues related to licensing laws. With AI tools incorporated in the software distribution processes, open source communities are obliged to deal with serious issues of code quality, sustainability and the important line of distinction between machine generated and human generated codes.

With the growth in the use of AI assisted contributions, open source communities are facing the challenge of review fatigue and diminishing basic trust. In the absence of established rules on disclosure and human verification, maintainers have to devote more time to scrutinise incoming code to detect any secret problems.

In spite of the changes in debates, the ongoing runs of new distributions in CPAN are evidence of the incredible allegiance of the Perl community. Every contribution, ranging from tools upgrades to improving basic utilities, is contributing to strengthening the environment used by developers from all over the globe.

Enjoy rest of the newsletter.

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Your editor: Mohammad Sajid Anwar.

Announcements

Perl IDE Developer Survey 2026 The Perl IDE Survey provides community driven insights into tools, editors, and workflows. It shows the preferred main choices such as Vim and VS Code and metrics on LSP, testing practices, and other main programming tools.

ANNOUNCE: Perl.Wiki V 1.56, CPAN::MetaCurator V 1.33by Ron Savage

Ron Savage has announced the availability of Perl.Wiki (version 1.56), as well as CPAN::MetaCurator (version 1.33). This new version integrates ChangeLog features into the JSTree menu and also improves the overall appearance of the program's interface.

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Articles

It's Time to Retire Your @cpan.org Email Addressby Olaf Alders

CPAN authors are reminded by Olaf Alders to stop using their @cpan.org email accounts permanently after the Perl NOC closed the forwarding service earlier this year. The maintenance of correct MetaCPAN profiles and contact information enables the CPAN Security Group to get in touch with maintainers regarding urgent security notifications.

Perl documentation (including POD) with Markdown and Docbookby Andrew Speer

Andrew has presented a novel set of CPAN modules made to connect the latest Markdown and DocBook process with traditional Perl POD. The article underscores the sidecar markdown documentation files that get automatically integrated with source files thanks to MakeMaker's goals together with the software for making rich and static sites.

This week in PSC (238) | 2026-10-05In the most recent update from the Perl Steering Council (Issue #238), discussions regarding the improvement of @INC handling continue. They also provide an update on the results of monitoring the effects of changes made to the way anonymous subroutines generate line numbers.

Minion: The Silent Engine That Turns Perl Into a Modern Architecture Platformby Dani Otelch

Dani describes how the Minion framework, which is part of Mojolicious, supports background job processing and SQL data storage in Perl applications. This article presents a detailed explanation and proposes Minion as a simpler and better option than heavy queue-based systems using Redis or kinds of enterprise-level job queues.

Peta::NN - Surface Detailby Richard C. Jelinek

PetaMem showcases Peta::NN, a zero-dependency neural networking library created from Perl, which can build and train micro-models such as inflection and word category. The post also describes things like modular pipelines, GPU acceleration (using Peta::WebGPU), and tested apps (like accurate German noun pluralisation).

Game::Terminal: Perl game implementations in a terminalby Robert Acock

Robert presents Game::Terminal, a single consolidated CPAN distribution of over twenty terminal-based classic board, card, and arcade games. The post explains how a clean and modular engine design powers both this new CLI menu launcher and an upcoming browser-based gaming platform.

The Long Life of WWW::Shortenby Dave Cross

Dave makes observations regarding the history of Perl for 24 years and looks at the history and origins of the URL shortening module suite WWW::Shorten after making corrections since some of the email addresses from that period are now retired.

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The Weekly Challenge

The Weekly Challenge by Mohammad Sajid Anwar will help you step out of your comfort-zone. You can even win prize money of $50 by participating in the weekly challenge. We pick one champion at the end of the month from among all of the contributors during the month, thanks to the sponsor Marc Perry.

The Weekly Challenge - 395by Mohammad Sajid Anwar

Welcome to a new week with a couple of fun tasks "Complex Number" and "Word Squares". If you are new to the weekly challenge then why not join us and have fun every week. For more information, please read the FAQ.

RECAP - The Weekly Challenge - 394by Mohammad Sajid Anwar

Enjoy a quick recap of last week's contributions by Team PWC dealing with the "Alternate Case" and "Alternating Vowels Consonants" tasks in Perl and Raku. You will find plenty of solutions to keep you busy.

Regular Alternationsby Jorg Sommrey

The article provides a neat solution to the problems of case-alternation and vowel-consonant sequencers through the use of two languages (Perl and J) represented in one beautiful algorithm. Jorg successfully illustrates the advanced features for controlling the pattern-matching process such as (*MARK) and (*SKIP), which lead to the elimination of unnecessary backtracking.

The Weekly Challenge #394by Luboš Kolouch

This multilingual blog post (in Perl and Python) presents solutions that are simple and well-documented and efficiently mix the techniques of ingenious index matching for the first task with the techniques of effective substring reduction for the second task. The code is simple, easy to read, and demonstrates good algorithms at every step.

Perl Weekly Challenge 394by W Luis Mochan

The blog entry written by Luis Mochan contains useful and very clear Perl-centric coverage of Challenge 394. In tackling Task 1, he makes use of creative combination of character and bit swapping (transforming the cases into binary digits), while for Task 2, he employs an aesthetically pleasing method of filtering fragments / finding the longest string.

Alternate Tune, Alternate Viewby Packy Anderson

Packy's article offers an interesting and informative piece in multiple languages, including Raku, Perl, Python, and Elixir. The article is based on Yes's Tales from Topographic Oceans and discusses some innovative methods of how one can solve problems of case-changing and finding subsequences with the use of regex.

Alternation weekby Peter Campbell Smith

The Perl approach employs a straightforward greedy scan-and-shift method along with a two-pass check (the original string and with the first two characters interchanged) to arrive at the minimum number of adjacent swaps. The approach is compact and well-documented and provides a thorough overview of the heuristics employed in the process.

The Weekly Challenge #394by Robbie Hatley

Robbie's Perl solutions demonstrate clever structural reasoning with the help of simple positional cost calculation for switching cases along with structured bitmask/sorting hash for discovering longest alternating vowel-consonants substrings.

Alternating Everythingby Roger Bell West

In his blog, Roger presents a sophisticated technical explanation of the solution to The Weekly Challenge 394 in Perl and Crystal. Task 1 utilises an ingenious breadth-first search on case-state configuration, while Task 2 creates a modular solution through separating the substring extraction and the logic of alternation in a vowel-consonant manner.

The one about alternatingby Simon Green

Simon's blog has come up with a cleanly written solution to the Weekly Challenge 394 problem in Python. In addition, the blog post illustrates Simon's input validation techniques followed by some easy to understand helper functions.

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Rakudo

2026.40 Pythonesqueby Elizabeth Mattijsen

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Weekly collections

NICEPERL's listsby Miguel Prz

Great CPAN modules released last week;
MetaCPAN weekly report.

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Events

Boston Perl Mongers virtual monthlyOctober 12 2026

MCP - Model Context Protocol in Perl: From Web App to AI Tools - with Dave CrossOctober 21, 2026

Punk: Perl MVC, compiled at bootNovember 16, 2026

London Perl & Raku Workshop 2026November 21, 2026

YAPC::Tokyo 2026November 27, 2026

German Perl/Raku Workshop 2027April 14-16, 2027

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(C) Copyright Gabor Szabo
The articles are copyright the respective authors.