wa_clear_chat

Clear all messages in a chat. The chat remains but all messages are removed.

SERVERWA MCP SOURCEdelltrak/wamcp

Critical RISK CLASS

Category Destructive

Parameters 00 required

Recommended Hiddensee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/delltrak-wamcp/wa-clear-chat.md

WHAT IT DOES

What wa_clear_chat does on WA MCP

AI agents call wa_clear_chat to permanently remove resources in WA MCP, typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.

RISK

Why wa_clear_chat is rated Critical

This tool permanently and irreversibly deletes message history from a chat. Although the chat object itself persists, the message data cannot be recovered. This meets the Destructive category definition as it irreversibly deletes data. Severity is high because an agent misusing this could destroy important communication records for a user.

From the tool's definition Tool description states it will 'clear all messages in a chat' and 'all messages are removed', which is irreversible data deletion.

Risk signalsBulk/mass operation — affects multiple targets

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs wa_clear_chat safely

PolicyLayer is an MCP gateway: it sits between your AI agents and WA MCP, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For wa_clear_chat, this is the rule to start with:

wa_clear_chat Hidden

wa_clear_chat is removed from the agent's tool list entirely, so the agent never calls it. The rest of the server keeps working.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "hide": [
    "wa_clear_chat"
  ]
}

RESTRICT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect WA MCP, apply this rule, and every wa_clear_chat call is checked against it from then on.

FAQ

Questions about wa_clear_chat

What does the wa_clear_chat tool do? +

Clear all messages in a chat. The chat remains but all messages are removed. It is categorised as a Destructive tool in the WA MCP MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.

How do I enforce a policy on wa_clear_chat? +

Register the WA MCP server in PolicyLayer and add a rule for wa_clear_chat: 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 WA MCP. Nothing to install.

What risk level is wa_clear_chat? +

wa_clear_chat is a Destructive tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.

Can I rate-limit wa_clear_chat? +

Yes. Add a rate_limit block to the wa_clear_chat 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 wa_clear_chat completely? +

Set action: deny in the PolicyLayer policy for wa_clear_chat. 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 wa_clear_chat? +

wa_clear_chat is provided by the WA MCP server (delltrak/wamcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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