AI agents call sg_hdb_carpark_lookup 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 queries and retrieves existing public data about HDB carpark information without any side effects. It is a straightforward read operation that retrieves information by a specific identifier. There is no risk of data modification, deletion, code execution, or financial impact. The low severity reflects minimal harm even in misuse scenarios.
From the tool's definition Tool performs 'Exact-match lookup for a single HDB carpark by car_park_no' — a retrieval operation with no modification, deletion, or execution capabilities. Returns public Singapore government carpark data.
Attacks that exploit this kind of access
Exact-match lookup for a single HDB carpark by car_park_no. 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_carpark_lookup: 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_carpark_lookup 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_carpark_lookup 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_carpark_lookup. 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_carpark_lookup 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.
Teams ship this data inside their own products. See what a licence covers →