List all joined communities.
AI agents call whatsapp_list_communities to retrieve information from WSAPI WhatsApp 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 information about joined communities without modifying, deleting, or executing any operations. It is a pure read operation that returns existing data. The blast radius of misuse is minimal—an agent could retrieve community information it shouldn't access, but cannot modify or harm data. Severity is low due to limited impact.
From the tool's definition Tool name 'whatsapp_list_communities' with description 'List all joined communities' indicates a retrieval operation with no side effects. The verb 'list' is a classic read operation that queries existing data.
Attacks that exploit this kind of access
List all joined communities. It is categorised as a Read tool in the WSAPI WhatsApp MCP Server MCP Server, which means it retrieves data without modifying state.
Register the WSAPI WhatsApp MCP Server MCP server in PolicyLayer and add a rule for whatsapp_list_communities: 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 WSAPI WhatsApp MCP Server. Nothing to install.
whatsapp_list_communities 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 whatsapp_list_communities 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 whatsapp_list_communities. 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.
whatsapp_list_communities is provided by the WSAPI WhatsApp MCP Server MCP server (wsapi-chat/wsapi-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
whatsapp_list_communities is one line of WSAPI WhatsApp MCP Server'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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