clear_chat_history

THE RISK

Critical Risk

Why clear_chat_history needs a policy

This tool permanently deletes all chat history records for a workspace without restoration mechanism. It is irreversible data destruction, making it Destructive rather than Write (which implies reversible modifications).

From the tool's definition Tool name explicitly uses 'clear' and description states it will 'Clear all chat history for a workspace' — irreversible deletion of conversational data.

Risk signalsBulk/mass operation — affects multiple targets

Documented attack patterns abuse exactly the kind of access clear_chat_history gives an agent:

POLICY

How to control clear_chat_history

PolicyLayer is an MCP gateway — it sits between your AI agents and AnythingLLM MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for clear_chat_history:

policy.json

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

clear_chat_history disappears from the agent's tool list entirely, and any attempt to call it is denied. The rest of the server keeps working.

Create a free account and register AnythingLLM MCP Server — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

RESTRICT THIS TOOL →

Free to start. No card required.

EXPLORE

Related tools and policies

More AnythingLLM MCP Server tools

Destructive delete_agent Delete an agent Destructive delete_api_key Delete an API key Destructive delete_document Delete a document from a workspace Destructive delete_user Delete a user Destructive delete_workspace Delete a workspace Execute initialize_anythingllm Initialize the AnythingLLM client with API credentials Execute invoke_agent Invoke an agent with input Execute chat_with_workspace Send a chat message to a workspace

All 38 AnythingLLM MCP Server tools →

Destructive tools on other servers

Android Forensics ADB MCP Server create_full_backup 0xarchive web3_revoke_key Frida Game Hacking MCP clear_scan cPanel MCP Server clear_spam_box

Go deeper

Critical-risk tools in AnythingLLM MCP Server → Every critical-risk tool this server exposes, in one view.
All critical-risk MCP tools → Every critical-risk tool across the catalogue, and the policy pattern that contains them.
The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Blast radius → How much damage one compromised or confused agent can do — and how to bound it.
Tool call approval → Approval gates on individual tool calls: auto-allow, prompt, or deny.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about clear_chat_history

What does the clear_chat_history tool do? +

Clear all chat history for a workspace. It is categorised as a Destructive tool in the AnythingLLM MCP Server 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 clear_chat_history? +

Register the AnythingLLM MCP Server MCP server in PolicyLayer and add a rule for clear_chat_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 AnythingLLM MCP Server. Nothing to install.

What risk level is clear_chat_history? +

clear_chat_history 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 clear_chat_history? +

Yes. Add a rate_limit block to the clear_chat_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.

How do I block clear_chat_history completely? +

Set action: deny in the PolicyLayer policy for clear_chat_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.

What MCP server provides clear_chat_history? +

clear_chat_history is provided by the AnythingLLM MCP Server MCP server (raqueljezweb/anythingllm-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every AnythingLLM MCP Server tool call.

Start from AnythingLLM MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →