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 # HerbCore.jl
 
+[![codecov](https://codecov.io/github/Herb-AI/HerbCore.jl/graph/badge.svg?token=92CPVT1ZQU)](https://codecov.io/github/Herb-AI/HerbCore.jl)
 [![Build Status](https://github.com/Herb-AI/HerbCore.jl/actions/workflows/CI.yml/badge.svg?branch=master)](https://github.com/Herb-AI/HerbCore.jl/actions/workflows/CI.yml?query=branch%3Amaster)
 
 This package provides the core functionality of the program synthesis library `Herb.jl` to avoid circular dependencies for core principles. Used for representing and manipulating expression trees, and abstract types for constraints and grammars.