UpdateOneWorkspaceMember
A write tool on the Twenty MCP server.
This record as markdown: /tools/jdu278-twenty-mcp-server/updateoneworkspacemember.md
What UpdateOneWorkspaceMember does on Twenty MCP Server
AI agents use UpdateOneWorkspaceMember 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 UpdateOneWorkspaceMember is rated Medium
This tool modifies workspace member records, which could affect user permissions, roles, or access levels within a CRM system. While reversible (not destructive), unauthorized updates to workspace members could grant inappropriate access or modify user configurations.
From the tool's definition Tool name 'UpdateOneWorkspaceMember' and description 'Update One workspaceMember' indicate modification of workspace member data. The 'Update' verb combined with the Twenty CRM context (managing CRM data) shows this creates or modifies data reversibly.
Attacks that exploit this kind of access
The rule that runs UpdateOneWorkspaceMember 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 UpdateOneWorkspaceMember, this is the rule to start with:
UpdateOneWorkspaceMember 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 UpdateOneWorkspaceMember call is checked against it from then on.
Questions about UpdateOneWorkspaceMember
UpdateOneWorkspaceMember 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 UpdateOneWorkspaceMember: 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.
UpdateOneWorkspaceMember 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 UpdateOneWorkspaceMember 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 UpdateOneWorkspaceMember. 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.
UpdateOneWorkspaceMember 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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