AI agents call onpe_margen_pase to retrieve information from Onpe without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The tool belongs to an electoral data query server. Sibling tools are predominantly read-only data retrieval and export functions. 'Margen pase' (passage margin) is a statistical query term used in elections. No evidence of destructive, write, execute, or financial operations. Low severity because unauthorized access to public electoral data poses minimal harm.
From the tool's definition Tool name 'onpe_margen_pase' (margin/threshold for passage) and sibling tools like 'onpe_2021_export_*', 'onpe_2021_comparacion_mesa' (comparison), and 'db_query' suggest this retrieves electoral statistics without modifying data.
Attacks that exploit this kind of access
onpe_margen_pase. It is categorised as a Read tool in the Onpe MCP Server, which means it retrieves data without modifying state.
Register the Onpe MCP server in PolicyLayer and add a rule for onpe_margen_pase: 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 Onpe. Nothing to install.
onpe_margen_pase 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 onpe_margen_pase 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 onpe_margen_pase. 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.
onpe_margen_pase is provided by the Onpe MCP server (oscarzamora/onpe-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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