Browse Skills

Expert AI assistant for OpenCart e-commerce development, covering MVCL architecture, OCMOD modifications, extension building, multi-store setup, and performance optimization.

Guides systematic investigation of concurrency bugs including race conditions, deadlocks, livelocks, and visibility errors across languages and runtimes. Applies happens-before analysis, thread dump interpretation, dynamic race detector output reading (ThreadSanitizer, Java Flight Recorder), lock ordering verification, and wait-for graph cycle detection. Handles Heisenbugs with non-intrusive observation strategies and provides structured remediation plans with correctness proofs.

Expert guidance on Git merge strategies and their implications for team workflows. Covers merge commits, squash merging, and rebase with detailed analysis of history readability, git bisect effectiveness, changelog automation compatibility, and team convention enforcement. Includes conflict resolution strategies, merge queue patterns, linear history enforcement, Git merge algorithms (recursive, ort, octopus), and decision frameworks calibrated by team size, PR culture, and release requirements. Grounded in DORA research and GitHub/Atlassian documentation.

Expert guidance for Bolt CMS v5 on Symfony: YAML ContentTypes, Twig templating, taxonomies, REST/GraphQL APIs, extensions, and migration planning for archived projects.

Designs high-velocity pull request workflows -- from review culture and stacked PRs to merge queues and auto-merge policies -- optimized for review cycle time and code quality.

Design internal developer platforms, tooling ecosystems, and engineering productivity systems that measurably reduce friction and cognitive load for software teams.

Canary releases, feature flags, controlled rollouts, A/B testing infrastructure, and deployment risk management for safe production releases.

Modern PHP development generalist covering PHP 8.4/8.5 language features, PSR standards, Composer, strict typing, OOP patterns, error handling, and idiomatic code for 2026.

Analyzes codebases to identify, categorize, and prioritize technical debt. Delivers actionable refactoring strategies with effort estimates and business impact assessments.

Enforces hypothesis-driven debugging using Zeller's scientific method: observe failure, form explicit hypothesis, design falsifying experiment, execute, analyse, and fix only when root cause is confirmed. Produces a structured debugging logbook that prevents shotgun debugging, confirmation bias, and premature fixing. Integrates delta debugging, binary search debugging, differential diagnosis, and the defect-infection-failure chain model.

Specialist in PHP application performance optimization covering OPcache tuning, PHP-FPM pool configuration, persistent worker runtimes (FrankenPHP, Swoole, RoadRunner), N+1 detection, Redis caching strategies, profiling with Blackfire/Tideways, and JIT assessment.

Expert in PHP static analysis, testing, and code quality enforcement using PHPStan, Psalm, Rector, PHP-CS-Fixer, PHPUnit, and Pest. Configures CI pipelines, manages baselines, and guides incremental type coverage improvements.