AI agents call sg_hdb_resale_stats to retrieve information from Sgdata without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and computes aggregate statistics (count, median, mean, min, max) from HDB resale datasets. It performs data queries and calculations without modifying data, executing code, or causing irreversible changes. Typical use is to fetch and summarize existing public housing market statistics from Singapore's government data sources. No side effects or destructive operations are indicated.
From the tool's definition Tool name 'sg_hdb_resale_stats' and description 'Aggregate HDB resale statistics (count, median, mean, min, max resale...' indicate retrieval and aggregation of statistical data with no modification or execution capabilities.
Attacks that exploit this kind of access
Aggregate HDB resale statistics (count, median, mean, min, max resale. It is categorised as a Read tool in the Sgdata MCP Server, which means it retrieves data without modifying state.
Register the Sgdata MCP server in PolicyLayer and add a rule for sg_hdb_resale_stats: 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 Sgdata. Nothing to install.
sg_hdb_resale_stats 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 sg_hdb_resale_stats 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 sg_hdb_resale_stats. 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.
sg_hdb_resale_stats is provided by the Sgdata MCP server (sypherin/sgdata-mcp). 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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