Individual skill

pymatgen

Analyzes, validates, converts, and transforms crystal structures and molecules with pymatgen. It covers CIF/POSCAR/XYZ/JSON conversion, symmetry-tolerance sweeps, local phase diagrams from computed entries, VASP and Q-Chem I/O, band structure and DOS parsing, and bounded Materials Project (mp-api) queries. Use when validating a CIF or checking disorder and oxidation states. Use when assigning space groups and testing symprec sensitivity. Use when converting structure files and checking for representation loss. Use when building a convex hull from total energies. Use when querying Materials Project with explicit fields and limits. Not for general molecular dynamics or non-materials cheminformatics.

plugins/KalarisLabs/research-agent-skills/skills/pymatgen/SKILL.md

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# pymatgen

Use pymatgen for explicit, provenance-preserving work with compositions,
molecules, periodic structures, computed entries, symmetry, phase diagrams,
electronic structures, and electronic-structure-code files. Treat every parse,
conversion, symmetry assignment, transformation, and database result as
method- and parameter-dependent.

The MIT frontmatter license covers this skill. `pymatgen` and
`pymatgen-core` are MIT; `mp-api` declares BSD-3-Clause-LBNL. Materials Project
data is generally CC BY 4.0, while contributed data remains owned by its
contributors. Check the exact artifact and data terms before redistribution.

## Verified snapshot (2026-07-23)