Variant Combination Audit

Finds missing combinations in supplied size and color lists, duplicate combinations and undeclared variants. Limited to two explicit axes, 200 supplied variants and at most 400 expected combinations. Uses explicitly supplied structured inputs. Server computations are transient; the standalone website computes locally in your browser. Review the output before exporting it. No persistent account records, external source retrieval, sending, transactions or paid model calls. CSV/JSON review and export are available on the standalone website. MCP requests are capped at 128 KiB and computed responses at 256 KiB; individual field and record limits also apply.