Enterprise only. Clear the AI conversation memory for a specific customer or all customers.
AI agents call clear_conversation_history to permanently remove resources in Whatsapp — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
This tool permanently deletes conversation history, which is data destruction that cannot be reversed. While not directly financial, the irreversible nature of clearing memory (which may contain important business context, compliance records, or customer communication history) makes it Destructive rather than Write. The ability to clear all customers' histories amplifies the blast radius.
From the tool's definition Clear the AI conversation memory for a specific customer or all customers. The verb 'clear' indicates irreversible deletion of conversation history data. This is a destructive operation that cannot be undone.
Attacks that exploit this kind of access
Enterprise only. Clear the AI conversation memory for a specific customer or all customers. It is categorised as a Destructive tool in the Whatsapp MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the Whatsapp MCP server in PolicyLayer and add a rule for clear_conversation_history: 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 Whatsapp. Nothing to install.
clear_conversation_history is a Destructive tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.
Yes. Add a rate_limit block to the clear_conversation_history 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 clear_conversation_history. 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.
clear_conversation_history is provided by the Whatsapp MCP server (spirit122/whatsapp-mcp-server). 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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