ChatGPT Work Tool and Skill Reference

The article specifies a validation-first workflow for rendering reports or dashboards, requiring validate_artifact with a complete manifest and bounded snapshot before any render_artifact calls, and prohibiting iterative validation that creates placeholder cards. It details size limits (≤50 datasets, 2,000 rows per dataset, 3 MB payload, 200k inline characters) and formatting rules for snapshots, blocks, and headings, and outlines when to fall back to static images or tables.