Each tool maps to a distinct step in the fiscalization lifecycle (environment check, issue, storno/refund, advance, single-document status, document listing). The only mild overlap is between tezga_stanje_dokumenta (one document by ID) and tezga_lista_dokumenata (filtered listing), and between tezga_izdaj_racun and tezga_avans, but the descriptions make the boundaries clear. The combined storno/refund tool bundles two actions, though its vrsta parameter disambiguates them.

All names share a consistent tezga_ snake_case prefix, which aids grouping. However, the stems mix verb phrases (izdaj_racun) with bare noun phrases (okruzenje, avans, stanje_dokumenta, lista_dokumenata), and one name is a compound with 'ili' (storno_ili_refundacija), so the pattern is readable but not uniform.

Six tools is well-scoped for an invoicing/fiscalization server: one per major operation plus a listing and a status lookup. No tool feels redundant or like padding.

The surface covers the full core lifecycle: environment check, invoice issuance, storno/refund, advance invoices, status retrieval and document listing, with idempotency and production confirmation handled. Minor gaps exist — no direct document lookup by externalId or a dedicated PDF/QR retrieval tool (links are only returned at issue time).