notion_delete_block

THE RISK

Critical Risk

Why notion_delete_block needs a policy

This tool performs irreversible deletion of Notion blocks, which is a destructive operation that cannot be undone by the tool itself. While not as critical as deleting entire databases or workspaces, the loss of block content is permanent and could impact important documents.

From the tool's definition Tool name 'notion_delete_block' and description 'Delete a block in Notion' explicitly indicate irreversible deletion of data. Deletion operations cannot be undone without manual recovery or backups.

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

POLICY

How to control notion_delete_block

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

policy.json

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

notion_delete_block 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 Notion 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 Notion MCP Server tools

Write notion_append_block_children Append children blocks to a block in Notion. Write notion_create_comment Create a new comment in Notion. Write notion_create_database Create a new database in Notion. Write notion_create_page Create a new page in Notion. Write notion_update_block Update a block in Notion. Write notion_update_database Update a database in Notion. Write notion_update_page Update a page in Notion. Read notion_list_block_children List all children blocks of a block in Notion.

All 21 Notion MCP Server tools →

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Go deeper

Critical-risk tools in Notion 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 notion_delete_block

What does the notion_delete_block tool do? +

Delete a block in Notion. It is categorised as a Destructive tool in the Notion 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 notion_delete_block? +

Register the Notion MCP Server MCP server in PolicyLayer and add a rule for notion_delete_block: 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 Notion MCP Server. Nothing to install.

What risk level is notion_delete_block? +

notion_delete_block 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 notion_delete_block? +

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

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

notion_delete_block is provided by the Notion MCP Server MCP server (orbit-logistics/notion-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 Notion MCP Server tool call.

Start from Notion 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 →