Free-tool recipe

List-mode intake (ui.resultsDisplay: 'list') on the left, data-mode report on the right. Upload one or more files: the first terminal file auto-selects; clicking a row switches the report. Pass ?pk=<key>&wf=<workflowId> (and ?nodl=1 to gate downloads), or ?inline=1 to run a transient inline workflow with preview: true instead of a saved one (acceptance test for the backend previewWorkflow contract, backend-skill.md §15). This page is the reference the filecheck.io/tools pages mirror.