nebutra/nebutra-sailor/ean-upc-gtin

What this skill does

Validate or calculate the GS1 check digit in bulk: GTIN-8/12/13/14, SSCC-18, GLN-13

中文：批量校验或计算 GS1 标准校验位：GTIN-8/12/13/14、SSCC-18、GLN-13

When to use

• Human or agent needs EAN / UPC / GTIN Check Digit (life/ean-upc-gtin).
• Tier: core · side-effect: pure · meter: forge.life.ean_upc_gtin.

How to invoke

POST /api/v1/tools/invoke/life/ean-upc-gtin
Content-Type: application/json
 
{"input":{}}

MCP name: life__ean-upc-gtin

Engine

• gs1-mod10 1.0.0
• Upstream: GS1 General Specifications — standard check digit calculation for GS1 data structures (mod 10, 3/1 weighting anchored at the rightmost payload digit), applied to GTIN-8/12/13/14, SSCC and GLN

Composition (next)

Chain these after a successful run when the job continues:

• (none seeded yet)

Batch

This tool supports the Processor batch surface (resultKind=json, accept=lines).

• MCP: forge.batch.create with toolId: "life/ean-upc-gtin"
• Poll: forge.batch.get

Limits

• Prefer pure/deterministic path; do not invent model calls.
• Respect input schema validation errors from invoke.