Extracts the most important sentences from long documents without rewriting anything, which is nice when you need provable text that actually appeared in the source. You get three algorithms to pick from (TextRank, LSA, frequency-based) and can control output by ratio, sentence count, or word count. The bullet point extraction mode is handy for quick scanning. Built as both a Python API and CLI, handles batch processing across directories, and keeps sentence order intact if you want. It's deterministic extractive summarization, so you're not getting AI rewrites here. Good for compliance scenarios, academic work, or anywhere you need summaries that are literally quoted from the original.
npx skills add https://github.com/dkyazzentwatwa/chatgpt-skills --skill text-summarizer