-polyat is a command-line tool that scans FASTQ files for poly-A/T homopolymers typically derived from carrier RNA (such as those in the QIAamp Viral RNA Mini Kit). Each read is evaluated once; the tool reports how many reads contain ≥10, ≥15, or ≥20 identical A/T bases together with their relative percentages. The run produces both a concise `polyA_counts.txt` QC table and an interactive `polyA_report.html` summary with per-column filters and a poly-A/T histogram.
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