AI agents call list_comissoes to retrieve information from Openar without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries and returns public legislative data (parliamentary committees) from the Portuguese Parliament's open data API. It has no side effects, does not modify state, and poses no risk of data loss, code execution, or financial impact. Listing public parliamentary information is a standard read operation with minimal security concern.
From the tool's definition Tool name is 'list_comissoes' and description states it 'List[s] parliamentary committees' — a retrieval operation with no modification, deletion, or execution of external actions.
Attacks that exploit this kind of access
List parliamentary committees. Each committee is identified by a numero and may appear across multiple initiatives and legislatures. It is categorised as a Read tool in the Openar MCP Server, which means it retrieves data without modifying state.
Register the Openar MCP server in PolicyLayer and add a rule for list_comissoes: 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 Openar. Nothing to install.
list_comissoes 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 list_comissoes 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 list_comissoes. 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.
list_comissoes is provided by the Openar MCP server (openar-pt/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
list_comissoes is one line of Openar's registry record.
The record carries the whole server: verified identity, auth posture, risk grade, every tool classified, recommended policy — re-checked continuously.
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