List all system codes (dropdown categories like Gender, Client Type, ID Type, etc.)
AI agents call list_system_codes to retrieve information from Mcp Mifosx without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The tool retrieves static system metadata used for UI dropdowns and data validation. It performs a query operation with no capability to modify, delete, or trigger financial transactions. The blast radius of misuse is minimal—an attacker would only gain visibility into the system's enumeration values, which are typically non-sensitive reference data.
From the tool's definition Tool name 'list_system_codes' and description 'List all system codes (dropdown categories like Gender, Client Type, ID Type, etc.)' indicate a read-only retrieval of reference/configuration data with no modification or side effects.
Documented attack patterns abuse exactly the kind of access list_system_codes gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Mcp Mifosx, and nothing reaches the server without passing your rules. This is the rule we recommend for list_system_codes:
{
"version": "1",
"default": "deny",
"tools": {
"list_system_codes": {}
}
}list_system_codes is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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List all system codes (dropdown categories like Gender, Client Type, ID Type, etc.). It is categorised as a Read tool in the Mcp Mifosx MCP Server, which means it retrieves data without modifying state.
Register the Mcp Mifosx MCP server in PolicyLayer and add a rule for list_system_codes: 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 Mifosx. Nothing to install.
list_system_codes 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 list_system_codes 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 list_system_codes. 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.
list_system_codes is provided by the Mcp Mifosx MCP server (openmf/mcp-mifosx). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Mcp Mifosx, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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73 Mcp Mifosx tools catalogued and risk-classified — across an index of 43,000+ MCP servers.