sheet-data-enrichment
Enrich spreadsheet data by fetching external sources (URLs, APIs) to fill missing columns, then aggregate results into summary sheets. Use when: (1) a spreadsheet has URLs/links in one column and you need to extract specific info (author, title, date, etc.) into another column, (2) batch-processing rows that require visiting web pages to scrape/extract data, (3) creating pivot/summary tables from enriched data (group-by, sum, count), (4) user says fill in, complete the table, extract from links,