Ruby runtime auditing

Make invisible
monkey patches visible.

MonkeyLens records method ownership, source locations, signatures, visibility, and ancestor order—then blocks runtime drift before it reaches production.

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MonkeyLens magnifying lens inspecting a Ruby runtime

$ monkeylens check

MonkeyLens PASS
no runtime drift detected

Official packagerubygems.org/gems/monkey_lens Built artifactLatest GitHub release

Runtime evidence

Audit the method table Ruby actually uses.

Ownership drift

Detect when a reopened class, include, or prepend changes the implementation Ruby dispatches.

Signature drift

Compare arity, parameters, visibility, source location, and native-versus-Ruby implementation.

CI enforcement

Commit an approved baseline and fail builds when high-impact runtime changes appear.

Get started

One baseline. One check.

gem install monkey_lens
monkeylens capture
monkeylens check