  In this paper we introduce diagNNose, an open source library for analysing
the activations of deep neural networks. diagNNose contains a wide array of
interpretability techniques that provide fundamental insights into the inner
workings of neural networks. We demonstrate the functionality of diagNNose with
a case study on subject-verb agreement within language models. diagNNose is
available at https://github.com/i-machine-think/diagnnose.
