Lista todos os grupos de uma sessão na Zappaz API
AI agents call list_groups to retrieve information from Zappaz MCP Server 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 information about groups in a WhatsApp session without modifying, deleting, or executing any actions. It is a straightforward data retrieval operation, consistent with Read category tools. The low severity reflects that unauthorized access reveals group metadata but does not enable destructive or financial actions.
From the tool's definition Tool name 'list_groups' and description 'Lista todos os grupos de uma sessão na Zappaz API' (Lists all groups of a session in the Zappaz API) indicates a retrieval operation with no side effects.
Attacks that exploit this kind of access
Lista todos os grupos de uma sessão na Zappaz API. It is categorised as a Read tool in the Zappaz MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Zappaz MCP Server MCP server in PolicyLayer and add a rule for list_groups: 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 Zappaz MCP Server. Nothing to install.
list_groups 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_groups 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_groups. 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_groups is provided by the Zappaz MCP Server MCP server (viiniolliveira/zappaz-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.
Teams ship this data inside their own products. See what a licence covers →