createOneNote
A write tool on the Twenty MCP server.
This record as markdown: /tools/jdu278-twenty-mcp-server/createonenote.md
What createOneNote does on Twenty MCP Server
AI agents use createOneNote to create or update resources in Twenty MCP Server, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Twenty MCP Server environment.
Why createOneNote is rated Medium
This tool creates a new note entity within the CRM, which is a reversible write operation. While notes can typically be deleted, the creation itself modifies the database state. The severity is medium because note creation in a CRM context has limited blast radius—it adds data but doesn't expose sensitive information or commit financial obligations.
From the tool's definition Tool name 'createOneNote' and description 'Create One note' indicate irreversible creation of a new note record in the Twenty CRM system.
Attacks that exploit this kind of access
The rule that runs createOneNote safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Twenty MCP Server, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For createOneNote, this is the rule to start with:
createOneNote stays usable, but capped: an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Twenty MCP Server, apply this rule, and every createOneNote call is checked against it from then on.
Questions about createOneNote
createOneNote is a write tool on the Twenty MCP Server MCP server. It is categorised as a Write tool in the Twenty MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Twenty MCP Server MCP server in PolicyLayer and add a rule for createOneNote: 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 Twenty MCP Server. Nothing to install.
createOneNote 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 createOneNote 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 createOneNote. 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.
createOneNote is provided by the Twenty MCP Server MCP server (jdu278/twenty-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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