AI agents call sg_ecda_vacancy_summary 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 returns aggregate statistical data about childcare vacancy counts across different education levels. It retrieves information but does not create, modify, delete, or execute any operations. No side effects or irreversible actions are possible. This is a straightforward read/query operation on public government data, making it low severity with high confidence.
From the tool's definition Tool name 'sg_ecda_vacancy_summary' and description 'Aggregate vacancy count for a given level' indicate retrieval of aggregate data without modification.
Attacks that exploit this kind of access
Aggregate vacancy count for a given level (infant/pg/n1/n2/k1/k2),. 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_ecda_vacancy_summary: 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_ecda_vacancy_summary 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_ecda_vacancy_summary 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_ecda_vacancy_summary. 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_ecda_vacancy_summary 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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