Compare statistics between two time periods
AI agents call compare_periods to retrieve information from OpenStride MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and compares existing statistics between time periods—a purely analytical operation with no side effects. It does not create, modify, delete, or execute external operations. No financial impact or destructive capability is evident. The low severity reflects minimal risk if misused by an AI agent, as it only accesses existing data.
From the tool's definition Tool name 'compare_periods' and description 'Compare statistics between two time periods' indicate data retrieval and analysis only.
Attacks that exploit this kind of access
Compare statistics between two time periods. It is categorised as a Read tool in the OpenStride MCP Server MCP Server, which means it retrieves data without modifying state.
Register the OpenStride MCP Server MCP server in PolicyLayer and add a rule for compare_periods: 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 OpenStride MCP Server. Nothing to install.
compare_periods 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 compare_periods 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 compare_periods. 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.
compare_periods is provided by the OpenStride MCP Server MCP server (openstride/mcp-server). 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 →