BR-CO-15 — Grand total off by a cent

One cent is enough to reject an invoice — and the penalty for a non-compliant French B2B invoice is levied on the sender.

Reports the declared grand total, the recomputed one and the delta.
Checks the whole chain in one pass: lines, VAT breakdown, total VAT, amount due.
Emits the corrected artifact only when nothing blocks.

Paste the canonical invoice model (JSON). The gate runs locally in this page — the same deterministic engine the agent tools call.

Destination formatTarget country rule set

Canonical invoice model (JSON)

|invoice.json

CLIENT-SIDE ONLY • ZERO EGRESS