Skills for Designers and Engineers.

A collection of claude skills we think are generic enough to be useful to everyone

These are commands I use with agents, mostly Claude

Pi extension package for Anthropic OAuth compatibility

Slightly less YOLO version of pi-coding-agent in Docker container sandbox

Unofficial agent skills + reference guide that teach AI coding assistants to write Rails the 37signals way — extracted from Fizzy, Campfire, and DHH's code reviews

A native macOS menu bar app that proxies Claude/Codex/Gemini subscriptions for use with Factory Droid CLI. Always updated with new model releases!

Some HTML, CSS and JS best practices.

Database-level deletion auditing for Rails applications without soft delete.

A CLI to create short-lived (8 hours) GitHub App User Access Token for secure local development

Your code is under new management. Agents that review your code.

Privacy-focused encrypted email for everyone. All-in-one alternative to Gmail + Mailchimp + Sendgrid.

A markdown email micro service for the people!

Ruby production code coverage collection and reporting (line of code usage)

custom local domain aliases for local dev servers

Skills for AI Agents

200+ production open source Rails apps & engines in one repo. Search across real codebases with AI agents to research architectural patterns.

Durable execution workflows for Rails

Private, fast, and honest web browser

An evolving how-to guide for securing a Linux server.

🐹 Clean, uninstall, analyze, optimize, and monitor your Mac.

Companion to Refactoring Volatile Views into Cohesive Components talk

🔌 circuit breaker based on netflix/hystrix but in ruby, hopefully commands/semaphores eventually too

⚡ Powerful tool for avoiding N+1 DB or HTTP queries

A statesmanlike state machine library.

Master programming by recreating your favorite technologies from scratch.

Kanban as it should be. Not as it has been.