Gets the customer balance
AI agents call customer_balance_get_customer_balance to retrieve information from MCP Dynamics 365 Commerce Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves customer financial balance information from a Commerce system. It performs a read-only query operation without creating, modifying, deleting, or executing any actions. While the data retrieved could be sensitive (financial information), the tool itself has no destructive or operational capability — it only queries and returns existing data.
From the tool's definition Tool name is 'customer_balance_get_customer_balance' and description states 'Gets the customer balance' — the verb 'get' and lack of any modification language indicates data retrieval with no side effects.
Attacks that exploit this kind of access
Gets the customer balance. It is categorised as a Read tool in the MCP Dynamics 365 Commerce Server MCP Server, which means it retrieves data without modifying state.
Register the MCP Dynamics 365 Commerce Server MCP server in PolicyLayer and add a rule for customer_balance_get_customer_balance: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches MCP Dynamics 365 Commerce Server. Nothing to install.
customer_balance_get_customer_balance is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the customer_balance_get_customer_balance rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for customer_balance_get_customer_balance. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
customer_balance_get_customer_balance is provided by the MCP Dynamics 365 Commerce Server MCP server (jiantmo/mcp-commerce). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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