AI agents use createOneFavoriteFolder 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.
This tool creates a new data record (a favorite folder) within the Twenty CRM system. Creation is a reversible write operation—the folder can be deleted later. There is no destruction, no code execution, no financial impact, and no side effects beyond adding a data record. The blast radius is minimal since favorite folder organization is a low-risk CRM feature with no dependencies that would cause cascading failures.
From the tool's definition Tool name 'createOneFavoriteFolder' and description 'Create One favoriteFolder' clearly indicate a creation operation that adds a new favoriteFolder entry to the CRM system.
Documented attack patterns abuse exactly the kind of access createOneFavoriteFolder gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Twenty MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for createOneFavoriteFolder:
{
"version": "1",
"default": "deny",
"tools": {
"createOneFavoriteFolder": {
"limits": [
{
"counter": "createonefavoritefolder_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}createOneFavoriteFolder 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.
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Create One favoriteFolder. 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 createOneFavoriteFolder: 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.
createOneFavoriteFolder 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 createOneFavoriteFolder 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 createOneFavoriteFolder. 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.
createOneFavoriteFolder 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.
Start from Twenty MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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219 Twenty MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.