* [MethodFinder v2.3.1](https://github.com/citizen428/methodfinder) – Smalltalk-like tool that finds Ruby methods producing a given result when invoked on a receiver.

* [Rotoscope v0.3.1](https://github.com/Shopify/rotoscope) – High-performance logger that records Ruby method invocations to a destination in call order, with optional filepath exclusions.