Lexsi Labs

CircuitKIT: unified toolkit for mechanistic interpretability circuit analysis

CircuitKIT is a new source-available Python library that integrates circuit discovery, evaluation, and intervention into a single typed, serializable workflow for mechanistic interpretability research. The library addresses fragmentation in the current ecosystem, where researchers must stitch together separate implementations for discovery algorithms, diagnostics, and downstream applications like pruning, editing, and steering. It includes declarative interfaces for mapping structured data into discovery tasks and is released by Lexsi Labs on GitHub.