Shipment Document Consistency Gate

The problem

International shipment documents often contain mismatched quantities, weights, values, references, parties, or transport details. Those inconsistencies can cause correction cycles, broker questions, handoff delays, and avoidable shipment disruption.

What it does

• Inventories the supplied shipment documents and records document type, version, readability, and apparent shipment linkage.
• Extracts shipment-critical facts across identifiers, parties, transport routes, package counts, quantities, weights, values, and line items.
• Compares those facts within and across documents to identify conflicts, omissions, and unresolved differences.
• Recalculates line-item extensions and totals where the supplied figures allow it.
• Produces a structured discrepancy report with a READY, REVISE, or STOP recommendation for human review.
• Requires source locators for factual findings and does not guess which conflicting value is correct.

Why this beats prompting it yourself

A general prompt may summarize the documents or choose the value that appears most often. This skill follows a repeatable evidence workflow: it records every supplied document, keeps conflicting values separate, requires source locators, labels missing information, checks arithmetic independently, and avoids inventing authority where the documents disagree.

Use cases

• Pre-release quality checking of an export document set before sending it to a broker, carrier, bank, or customer.
• Comparing commercial invoices and packing lists for quantity, package-count, weight, value, and reference mismatches.
• Checking third-party inspection certificates against purchase orders, invoices, and packing lists.
• Verifying that supplied documents reference the same shipment, parties, route, and purchase-order identifiers.
• Checking buyer-supplied documentary-credit or internal checklist requirements against the document set.
• Recomputing invoice line items and totals to flag arithmetic inconsistencies.

Known limitations

Requires text-readable documents and does not perform OCR on images, handwriting, or low-quality scans. It checks document consistency only and does not provide customs, legal, tax, sanctions, export-control, tariff-classification, country-of-origin, or trade-compliance advice. It cannot determine jurisdiction-specific document requirements unless the buyer supplies the applicable checklist or instructions. Complex tables, translations, missing pages, and ambiguous terminology may reduce accuracy. Human review remains required before documents are released.