Obtener serie histórica de cotizaciones de un título
AI agents call obtener_cotizacion_serie_historica to retrieve information from IOL 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 historical stock quotation data without creating, modifying, deleting, or executing any operations. It is a pure data retrieval function that queries past pricing information. Given the read-only nature and that historical pricing data is non-sensitive information typically available to the public, this is classified as Read with low severity.
From the tool's definition Tool name 'obtener_cotizacion_serie_historica' and description 'Obtener serie histórica de cotizaciones de un título' indicate retrieval of historical stock price data with no modification or execution capability.
Attacks that exploit this kind of access
Obtener serie histórica de cotizaciones de un título. It is categorised as a Read tool in the IOL MCP Server MCP Server, which means it retrieves data without modifying state.
Register the IOL MCP Server MCP server in PolicyLayer and add a rule for obtener_cotizacion_serie_historica: 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 IOL MCP Server. Nothing to install.
obtener_cotizacion_serie_historica 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 obtener_cotizacion_serie_historica 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 obtener_cotizacion_serie_historica. 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.
obtener_cotizacion_serie_historica is provided by the IOL MCP Server MCP server (pgallar/iol-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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