This record as markdown: /tools/atharva-joshi77-cdp-mcp/cdp-update-user.md
What cdp_update_user does on CDP MCP Server
AI agents use cdp_update_user to create or update resources in CDP MCP Server, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your CDP MCP Server environment.
Why cdp_update_user is rated Medium
This tool modifies user data in what is described as an enterprise CDP platform managing campaigns, workflows, and administrative tasks. While the operation is reversible (Write rather than Destructive), the blast radius is high because: (1) unintended user modifications could disrupt authentication, permissions, or user access; (2) in a multi-tenant CDP, unauthorized updates could affect customer data integrity;…
From the tool's definition Tool name 'cdp_update_user' and description 'Update an existing CDP user' indicate modification of user data. The verb 'update' is a reversible write operation.
Attacks that exploit this kind of access
The rule that runs cdp_update_user safely
PolicyLayer is an MCP gateway: it sits between your AI agents and CDP MCP Server, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For cdp_update_user, this is the rule to start with:
cdp_update_user 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 CDP MCP Server, apply this rule, and every cdp_update_user call is checked against it from then on.
Questions about cdp_update_user
Update an existing CDP user. It is categorised as a Write tool in the CDP MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the CDP MCP Server MCP server in PolicyLayer and add a rule for cdp_update_user: 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 CDP MCP Server. Nothing to install.
cdp_update_user 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 cdp_update_user 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 cdp_update_user. 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.
cdp_update_user is provided by the CDP MCP Server MCP server (atharva-joshi77/cdp-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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