See what datasets have been updated recently.
AI agents call get_activity_stream 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 historical metadata about dataset updates—a pure read operation with no ability to modify, delete, or execute operations. The activity stream is informational only, making it the lowest-risk category. No financial, destructive, or executable operations are possible.
From the tool's definition Tool name 'get_activity_stream' and description 'See what datasets have been updated recently' indicate querying/retrieving activity log information with no modification or side effects.
Attacks that exploit this kind of access
See what datasets have been updated recently. 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_activity_stream: 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_activity_stream 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_activity_stream 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_activity_stream. 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_activity_stream 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.
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