Tooluniverse Sequence Retrieval

This handles the messy reality of pulling sequences from NCBI and ENA when you don't want to remember which database accepts RefSeq accessions or whether that gene name is ambiguous across species. It runs the disambiguation logic (organism, gene symbol, accession type), picks the right database, and assembles a report with sequence metadata, curation levels, and cross-references. The workflow is organized around quality tiers (RefSeq curated beats predicted beats GenBank submissions) and includes fallback chains when databases don't cooperate. Useful when you need to grab sequences programmatically without writing the same accession-routing logic for the hundredth time or explaining to users why their ENA query failed on a RefSeq ID.