listar_datasets_disponiveis
AI agents call listar_datasets_disponiveis to retrieve information from Mcp Brasil without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The tool appears to enumerate or retrieve metadata about available datasets without modifying, executing, or destroying anything. The description is empty, which introduces some uncertainty, but the name and server context strongly suggest a non-destructive query operation. No financial impact, code execution, or data modification is implied.
From the tool's definition Tool name 'listar_datasets_disponiveis' (list available datasets) indicates a query/listing operation. The server context describes tools that 'query and cross-reference extensive government datasets', positioning this as a data discovery tool.
Attacks that exploit this kind of access
listar_datasets_disponiveis. It is categorised as a Read tool in the Mcp Brasil MCP Server, which means it retrieves data without modifying state.
Register the Mcp Brasil MCP server in PolicyLayer and add a rule for listar_datasets_disponiveis: 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 Mcp Brasil. Nothing to install.
listar_datasets_disponiveis 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 listar_datasets_disponiveis 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 listar_datasets_disponiveis. 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.
listar_datasets_disponiveis is provided by the Mcp Brasil MCP server (mcp-brasil/mcp-brasil). 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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