whatsapp_join_group_with_invite

WHAT IT DOES

What whatsapp_join_group_with_invite does on WSAPI WhatsApp MCP Server

AI agents use whatsapp_join_group_with_invite to create or update resources in WSAPI WhatsApp MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your WSAPI WhatsApp MCP Server environment.

WHY IT NEEDS A POLICY

Why whatsapp_join_group_with_invite needs a policy

The tool creates or modifies data reversibly by changing group membership. It does not retrieve data (Read), execute arbitrary code (Execute), permanently delete data (Destructive), or move money (Financial). While joining a group could expose the user to unwanted communications or group dynamics, the action itself is reversible and creates a new association rather than destroying information.

From the tool's definition Tool accepts a group invite, which modifies the user's group membership state by adding them to a WhatsApp group. This is a reversible state change (user can leave the group later).

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

whatsapp_join_group_with_invite Rate-limited

whatsapp_join_group_with_invite stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "whatsapp_join_group_with_invite": {
      "limits": [
        {
          "counter": "whatsapp_join_group_with_invite_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches WSAPI WhatsApp MCP Server, so you can run agents against it safely.

FAQ

Questions about whatsapp_join_group_with_invite

What does the whatsapp_join_group_with_invite tool do? +

Accept a group invite received via direct message. It is categorised as a Write tool in the WSAPI WhatsApp MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on whatsapp_join_group_with_invite? +

Register the WSAPI WhatsApp MCP Server MCP server in PolicyLayer and add a rule for whatsapp_join_group_with_invite: 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.

What risk level is whatsapp_join_group_with_invite? +

whatsapp_join_group_with_invite is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit whatsapp_join_group_with_invite? +

Yes. Add a rate_limit block to the whatsapp_join_group_with_invite 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.

How do I block whatsapp_join_group_with_invite completely? +

Set action: deny in the PolicyLayer policy for whatsapp_join_group_with_invite. 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.

What MCP server provides whatsapp_join_group_with_invite? +

whatsapp_join_group_with_invite 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.