The deadline was less than 24 hours away. Sarah’s team had spent weeks manually mapping thousands of data points—from balance sheets to intricate footnotes—to the latest taxonomy. Just before submitting, Sarah decided to run the entire document through their .
# GitHub Actions example - name: Validate XBRL run: | pip install arelle arelle --file output.xbrl --validate --severity error xbrl validation tool
(ESEF plugin includes dimension & table checks) The deadline was less than 24 hours away
An XBRL validation tool is specialized software designed to carry out automated data quality checks on digital financial reports. It "validates" reported data against testable rules—ranging from basic technical specifications to complex business logic—to detect and prevent tagging errors before a report is submitted to a regulator like the or ESMA . Why Validation is Critical for Financial Reporting # GitHub Actions example - name: Validate XBRL