Callable symbol - is an extension that makes it possible to pass arguments to block created with Symbol#to_proc

Callbacker provides a module for attaching before and after callbacks to code.

Callback (http://callback.run) allows you to create a job that runs on a schedule and you get a webhook notification when the job should run. Stop building scheduling systems.

programatically skip ActiveRecord callbacks

A little call-by-need implementation for recreational use.

Ruby wrapper for Callcredit's CallValidate API

Initialize class instance with .call method

Get caller class name that is calling from the body of a class definition.

Ruby wrapper for OpenCNAM

Pretty-print callstack, including lines of context from the source file around each location.

A command line tool for creating a call graph for a target class.

Decorate a method or wrap a code block to see in logs when they're called.

Automatically provide dead-simple ActiveSupport callbacks to your instance methods.

Event handler and listener for Ruby

Simple, declarative, ActiveModel style callbacks (aka hooks or events) in Ruby! Once mixed-in, you can get awesome callback and hooks within any class you want!

Some mappings of Library of Congress call numbers to academic departments. Very opinionated and specific to our specific context. See also the high_level_browse gem.

Simple gem for querying a Call of Duty 4 server for information

CallRail

CallRail API

Gem that provides a script to generate on-call rotas