Retrieve the complete schema for any dataset, including field definitions and available resources.
AI agents call get_dataset_schema 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.
This tool retrieves metadata about datasets (schemas, field definitions, available resources) without modifying, deleting, executing code, or causing financial impact. It is a pure information lookup with no capacity to alter state or trigger external operations.
From the tool's definition Tool name 'get_dataset_schema' and description 'Retrieve the complete schema for any dataset' indicate a retrieval operation with no side effects.
Attacks that exploit this kind of access
Retrieve the complete schema for any dataset, including field definitions and available resources. 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.
Register the Government of Canada Open Data MCP Servers MCP server in PolicyLayer and add a rule for get_dataset_schema: 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.
get_dataset_schema 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_dataset_schema 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_dataset_schema. 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_dataset_schema 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.
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 →