decoupler

Use for any task involving the decoupler library — inferring biological activity/enrichment scores from omics data (bulk, single-cell, spatial). Triggers on estimating transcription factor (TF) activity, pathway activity, or gene-set enrichment from an AnnData/DataFrame; running ulm, mlm, ora, gsea, gsva, aucell, viper, zscore, waggr, mdt, udt; multi-method consensus; fetching prior knowledge (CollecTRI, DoRothEA, PROGENy, MSigDB hallmarks, OmniPath); pseudobulk and expression filtering; using bundled example datasets (pbmc3k, covid5k, erygast1k, hsctgfb, msvisium, knocktf, toy) and whether they are raw counts or normalized; ranking/plotting activity scores; or benchmarking methods against ground truth. This is a router skill — read the relevant file under references/ before writing decoupler code, because outputs land in different places and several defaults are non-obvious.