FastaGuard: FASTA preflight QC for modern bioinformatics pipelines

FastaGuard v1.1.0 stopped 19.7% of 700 public NCBI assembly FASTA files at an explicit pipeline gate, mainly for scaffold-level genomes, using high-N rules.

• Why it matters: Expensive downstream analyses can waste time and propagate errors when assembly FASTA files have structural or composition problems, so a fast, explainable preflight check is needed.
• What they did: The tool streams FASTA QC, flags structural/compositional red flags, and produces versioned multi-format reports; in injected tests, the NCBI gate detected 520/520 faults across 13 error classes.
• The result: The gate blocked none of 120 benign changes, prevented downstream failures (46/182 defect cells) and avoided ~54–62 s of mapping/sorting with only 0.05–0.06 s overhead.

AI summary of the abstract · may contain errors · not medical advice · read the paper.