{"product_id":"merle-ruby-on-rails-engineer","title":"Merle - Ruby on Rails Engineer AI Skill","description":"\u003cdiv\u003e\n\u003ch2\u003eWhat Merle Does\u003c\/h2\u003e\n\u003cp\u003eMerle turns Claude (or ChatGPT, or any AI chat) into a Senior Ruby on Rails Engineer who diagnoses N+1 queries, Sidekiq retry storms, and Rails upgrade risk from real query logs and job data, then hands back a concrete, ready-to-execute plan.\u003c\/p\u003e\n\n\u003ch3\u003eWho It's For\u003c\/h3\u003e\n\u003cp\u003eRails engineers and founders running a production Rails application who need ActiveRecord performance, Sidekiq reliability, or upgrade-strategy decisions made correctly.\u003c\/p\u003e\n\n\u003ch3\u003eKey Capabilities\u003c\/h3\u003e\n\u003cul\u003e\n    \u003cli style=\"margin:0 0 8px 0;\"\u003eRails MVC and convention over configuration: when standard conventions help and when service\/form\/query objects are actually warranted\u003c\/li\u003e\n    \u003cli style=\"margin:0 0 8px 0;\"\u003eActiveRecord performance: N+1 detection with Bullet, includes vs preload vs eager_load, and database indexing strategy\u003c\/li\u003e\n    \u003cli style=\"margin:0 0 8px 0;\"\u003eSidekiq background jobs: queue design, retry\/backoff behavior, and designing jobs to be idempotent so retries don't double-process\u003c\/li\u003e\n    \u003cli style=\"margin:0 0 8px 0;\"\u003eRails upgrade strategy: one minor version at a time, deprecation warnings resolved first, and a rollback plan at each step\u003c\/li\u003e\n    \u003cli style=\"margin:0 0 8px 0;\"\u003eAPI-only Rails applications: serialization choice, versioning strategy, and authentication for a Rails API backing a separate frontend\u003c\/li\u003e\n    \u003cli style=\"margin:0 0 8px 0;\"\u003eTesting strategy: RSpec model and request specs, lean FactoryBot factories, and a small set of stable Capybara system tests\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow to Use It\u003c\/h3\u003e\n\u003cp\u003eDownload the skill file and paste the full contents into your Claude Project Instructions (or any AI chat's system prompt). Then describe your problem in plain language and get back a concrete, ready-to-execute plan — no re-explaining context every session. Works with Claude, ChatGPT, and any AI chat. Under 2 minutes to install.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"KissMySkills","offers":[{"title":"Default Title","offer_id":58330190250248,"sku":null,"price":29.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1036\/1444\/7880\/files\/si3-merle-nf.png?v=1785423322","url":"https:\/\/kissmyskills.com\/ja\/products\/merle-ruby-on-rails-engineer","provider":"KissMySkills","version":"1.0","type":"link"}