Description:nf-bigbrother is a Nextflow plugin that captures the actual task execution graph (with runtime metrics, CPU, memory, and I/O data) as JSON and Graphviz outputs, complementing Nextflow's abstract `-with-dag` visualization. It's designed for workflow developers and researchers who need to analyze, visualize, or replay real workflow execution patterns in WfCommons format, with tools to generate SVG/PNG graphs and animate execution timelines.