Create a new Notion entry from markdown content. Can append to an existing page or create a new page in a database. Automatically handles chunking for large content (Notion limit: 100 blocks per request).
AI agents use create_notion_entry to create or update resources in MCP Session Closer — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your MCP Session Closer environment.
The tool modifies data in Notion by creating or appending content, which is characteristic of a Write operation. The changes are reversible (entries can be edited or deleted). While it integrates with an external service, it does not execute arbitrary code, delete data irreversibly, or move money.
From the tool's definition Tool creates new Notion entries and appends to existing pages. Description states 'Create a new Notion entry' and 'append to an existing page or create a new page', which are reversible write operations.
Attacks that exploit this kind of access
Create a new Notion entry from markdown content. Can append to an existing page or create a new page in a database. Automatically handles chunking for large content (Notion limit: 100 blocks per request). It is categorised as a Write tool in the MCP Session Closer MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the MCP Session Closer MCP server in PolicyLayer and add a rule for create_notion_entry: 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 MCP Session Closer. Nothing to install.
create_notion_entry is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the create_notion_entry 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 create_notion_entry. 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.
create_notion_entry is provided by the MCP Session Closer MCP server (tylarcam/mcp-session-closer). 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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