query_datastore | PolicyLayer

WHAT IT DOES

What query_datastore does on Government of Canada Open Data MCP Servers

AI agents call query_datastore to retrieve information from Government of Canada Open Data MCP Servers without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

WHY IT NEEDS A POLICY

Why query_datastore needs a policy

This tool appears to be a read-only query function that retrieves information from government datasets. The absence of any write, delete, or execute semantics in the tool name and the pattern of sibling tools (all read-oriented: browse, query, get, list, analyze) indicates this is likely a data retrieval tool.

From the tool's definition Tool name 'query_datastore' combined with sibling tools like 'query_bridges', 'query_ports_airports', 'browse_by_topic', 'get_dataset_schema', and 'get_activity_stream' indicates data retrieval operations.

Attacks that exploit this kind of access

Questions about query_datastore

What does the query_datastore tool do? +

query_datastore. It is categorised as a Read tool in the Government of Canada Open Data MCP Servers MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on query_datastore? +

Register the Government of Canada Open Data MCP Servers MCP server in PolicyLayer and add a rule for query_datastore: 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 Government of Canada Open Data MCP Servers. Nothing to install.

What risk level is query_datastore? +

query_datastore is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit query_datastore? +

Yes. Add a rate_limit block to the query_datastore 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.

How do I block query_datastore completely? +

Set action: deny in the PolicyLayer policy for query_datastore. 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.

What MCP server provides query_datastore? +

query_datastore is provided by the Government of Canada Open Data MCP Servers MCP server (krunal16-c/gov-ca-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.