get_household_monthly_income
AI agents call get_household_monthly_income to retrieve information from OneMap MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves publicly available demographic and economic statistics from Singapore's OneMap system. It has no side effects, does not modify data, and cannot execute commands or cause financial transactions. It belongs in the Read category as it simply queries and returns household income data, similar to other statistical lookup tools on this server.
From the tool's definition Tool name 'get_household_monthly_income' indicates retrieval of statistical data about household income in Singapore. The server is described as providing access to 'population statistics' and 'thematic layers'.
Attacks that exploit this kind of access
get_household_monthly_income. It is categorised as a Read tool in the OneMap MCP Server MCP Server, which means it retrieves data without modifying state.
Register the OneMap MCP Server MCP server in PolicyLayer and add a rule for get_household_monthly_income: 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 OneMap MCP Server. Nothing to install.
get_household_monthly_income 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_household_monthly_income 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_household_monthly_income. 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_household_monthly_income is provided by the OneMap MCP Server MCP server (linzele/mcp-onemap). 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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