cancel_rich_menu_default

THE RISK

Critical Risk

Why cancel_rich_menu_default needs a policy

Cancelling the default rich menu removes the currently configured default UI element for all users of the LINE Official Account. This action undoes a configuration setting that affects all followers and may not be trivially reversible (requires reconfiguring and re-assigning a default rich menu).

From the tool's definition Cancel the default rich menu

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

POLICY

How to control cancel_rich_menu_default

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

policy.json

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

cancel_rich_menu_default 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 Line Bot — 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 Line Bot tools

Destructive delete_rich_menu Delete a rich menu from your LINE Official Account. Write broadcast_flex_message Broadcast a highly customizable flex message via LINE to all users who have added your LIN Write broadcast_text_message Broadcast a simple text message via LINE to all users who have followed your LINE Official Write create_rich_menu Create a rich menu based on the given actions. Generate and upload a rich menu image based Write push_flex_message Push a highly customizable flex message to a user via LINE. Supports both bubble (single c Write push_text_message Push a simple text message to a user via LINE. Use this for sending plain text messages wi Write set_rich_menu_default Set a rich menu as the default rich menu. Read get_follower_ids Get a list of user IDs of users who have added the LINE Official Account as a friend. This

All 12 Line Bot 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 Line Bot → 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 cancel_rich_menu_default

What does the cancel_rich_menu_default tool do? +

Cancel the default rich menu. It is categorised as a Destructive tool in the Line Bot 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 cancel_rich_menu_default? +

Register the Line Bot MCP server in PolicyLayer and add a rule for cancel_rich_menu_default: 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 Line Bot. Nothing to install.

What risk level is cancel_rich_menu_default? +

cancel_rich_menu_default 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 cancel_rich_menu_default? +

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

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

cancel_rich_menu_default is provided by the Line Bot MCP server (@line/line-bot-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 Line Bot tool call.

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

CHECK YOUR STACK →