# POS System MCP Tools

Canonical URL: https://oneflash.hk/en/docs/mcp/tools/cloud-pos-system

This page is the Oneflash MCP detail reference for `cloud-pos-system`, not a software landing page. Module status: Design Draft. Category: App.

Summary: POS System MCP tools support stores, registers and hardware, staff permissions, product pricing, promotions, member points, inventory sync, O2O pickup, sales payments, refunds and exchanges, shifts, cash movement, offline sync, daily Z-Reports, analytics, and operation audit logs.

Agent workflow: Use for stores, registers, staff permissions, pricing, promotions, members, inventory, O2O pickup, sales, refunds, exchanges, shifts, cash, offline sync, Z-Reports, and audit. Read store, register, staff, inventory, and transaction state first.

Endpoint rules: The endpoint section is the source of truth. Payments, refunds, exchanges, cash movement, closing reports, inventory sync, and permission changes are high-impact actions governed by approval, safety, and read-first rules. Do not invent endpoints.