Map ICD-10 diagnosis codes to billing charges.
AI agents call get_charges_by_icd to retrieve information from MCPDischarge without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves billing charge information associated with ICD-10 codes. While it accesses financial data (billing charges), it performs only a read operation—no charges are created, modified, or executed.
From the tool's definition Tool description states 'Map ICD-10 diagnosis codes to billing charges' — a lookup/retrieval operation with no modification of data. The word 'Map' and 'to' indicate a query function that returns billing information based on input codes.
Attacks that exploit this kind of access
Map ICD-10 diagnosis codes to billing charges. It is categorised as a Read tool in the MCPDischarge MCP Server, which means it retrieves data without modifying state.
Register the MCPDischarge MCP server in PolicyLayer and add a rule for get_charges_by_icd: 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 MCPDischarge. Nothing to install.
get_charges_by_icd 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 get_charges_by_icd 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 get_charges_by_icd. 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.
get_charges_by_icd is provided by the MCPDischarge MCP server (prashantsingh1234/mcp_project). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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