How I Hunted Down 23 N+1 Queries in a Rails App With Claude Code
TL;DR Our Rails app's p95 response time had crept from 280 ms to 1.4 s over a year, and nobody could say why. I paired with Claude Code for four day…
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More than click and submit: use any event with Stimulus
I recently surprised someone by showing you can use any event besides the common click , submit and keydown events. The Stimulus docs list those sev…
Fixing Delicate Cache Mismatches in a Brownfield SPA: A Pragmatic Solution
Building in public often means talking about shiny new features, but in mature production applications, the most critical engineering work is usuall…
I Tested Rails Baseline by Leaving Architecture Out of the Prompt
Note: Rails Baseline is the production-ready Rails foundation I tested here. It gives a new SaaS application and the coding agents working in it cle…
When a build breaks, the bug fixes itself
When a build breaks, the bug fixes itself We stopped babysitting CI failures. Now a red build files its own bug — and an AI agent picks it up and sh…
Built a Blog App with Rails & PostgreSQL – Looking for Code Review!
Hey DEV community! 👋 I've been working on a Blog Application built with Ruby on Rails to practice backend architecture, clean code standards, and Ra…
One Rails request, one event: production context for coding agents
Wide Events is a Rails gem that puts the production context a coding agent needs onto one OpenTelemetry root span per request or job. In one product…
Building a low-friction DBT skills companion for the web
I built DBT Companion, a free, mobile-friendly web app for exploring skills commonly taught in dialectical behavior therapy: https://dbt-companion.o…
3 Action Mailer Features I Didn't Know Existed
A few weeks ago I needed to check something in the Action Mailer docs, just a quick lookup. I ended up spending much more time there than expected a…
Solid Queue has no alerting, so I built QueuePulse
Rails 8 made Solid Queue the default Active Job backend, and it's excellent: database-backed, no Redis, and Mission Control Jobs gives you a dashboa…
Kiro for Ruby: Generating Rails Controllers and Models
You want to add a new resource to your Rails app. You know the drill — rails generate , tweak the migration, add validations, write the controller a…
GitHub Copilot Is Rewriting How You Think About Database Design — And Not in a Good Way
You're staring at a Rails schema with 47 tables. The foreign key relationships are a bowl of spaghetti — timestamps everywhere, no documentation, an…
Giving an AI Agent Write Access to Your App: Guardrails We Built for RobinReach's MCP Tools
A few months ago I wrote about building a production MCP server in Rails , the plumbing of exposing RobinReach's API as a set of MCP tools that Clau…
Rails GuardDog: Advanced Security Scanner for Rails Applications
Rails GuardDog: Advanced Security Scanner for Rails Introduction Today I'm excited to announce Rails GuardDog v0.1.0 — an open-source security scann…
RubyConf has joined RailsConf & RailsWorld as another exclusive discriminatory unexcellent conference
(Originally published as this blog post: https://andymaleh.blogspot.com/2026/06/rubyconf-has-joined-railsconfrailsworld.html ) RubyConf has joined R…
🇺🇸 3 Essential Gems to Eliminate Friction in Your Rails Workflow
Anyone who works with Ruby on Rails knows that, despite the framework being incredible for productivity, there are some classic workflow deficiencie…
How to Pause and Resume Ruby Workflows Mid-Flight
Ruby Reactor 0.4.0 introduces interrupts — the first native saga pause/resume mechanism in the Ruby ecosystem. You've built a checkout flow. The use…
I built rails-persona — behavioral analytics for Rails with zero external services
The problem Every SaaS app eventually needs to answer the same questions: Which features do my users actually use? Who are my most active users? Whe…
Testing Turbo Frames in Rails Without a Browser
Turbo Frames are a great way to build interactive pages without writing custom JavaScript. But how do you test them properly? You can reach for syst…