depth can be provided to request your messageChannelMessageAssociation
AI agents call findOneMessageChannelMessageAssociation to retrieve information from Twenty MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves a single messageChannelMessageAssociation record with optional nested data depth. It performs a read-only query operation with no side effects, modification capabilities, or irreversible actions. Typical CRM read operations pose minimal risk when misused by an AI agent.
From the tool's definition Tool name 'findOne' and description indicate retrieval/query operation: 'request your messageChannelMessageAssociation' with optional depth parameter for nested data retrieval. No modification, deletion, or execution keywords present.
Documented attack patterns abuse exactly the kind of access findOneMessageChannelMessageAssociation 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 findOneMessageChannelMessageAssociation:
{
"version": "1",
"default": "deny",
"tools": {
"findOneMessageChannelMessageAssociation": {}
}
}findOneMessageChannelMessageAssociation is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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depth can be provided to request your messageChannelMessageAssociation. It is categorised as a Read tool in the Twenty MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Twenty MCP Server MCP server in PolicyLayer and add a rule for findOneMessageChannelMessageAssociation: 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.
findOneMessageChannelMessageAssociation is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the findOneMessageChannelMessageAssociation 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 findOneMessageChannelMessageAssociation. 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.
findOneMessageChannelMessageAssociation 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.