Feature Integration

The contributor guide for adding new fields that propagate through the API, PTM annotations, species reference datasets, and proteomic dataset annotation is available in the repository root:

FEATURE_INTEGRATION_README.md

This guide covers:

• Parser and accessor patterns for new columns

• Shared site-level annotation integration

• Propagation to get_annotated_PTMs, SpeciesReferenceDataset, and ProteomicDataset

• Backward compatibility for optional columns

• Recommended tests and validation workflow