Matchms Purpose and Scope Matchms is a Python package for importing, cleaning, processing, and comparing tandem mass spectra. This skill targets matchms 0.33.1 , released 2026-06-08, verified again on 2026-10-01. Older tutorials can use removed names; see the migration reference. Use matchms for: - MS/MS library search and query-versus-reference scoring - Metadata harmonization, adduct/precursor handling, and peak filtering - Cosine, modified-cosine, neutral-loss, approximate, and entropy scoring - Structured score matrices, top-hit extraction, and spectral networks - MGF, MSP, mzML, mzXML, J…