Find user by name (first name, last name, or email). Use this to find users when you know their name.
AI agents call find_user_by_name to retrieve information from Nuclino MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries user data by name/email to locate user information but does not create, modify, delete, or execute any operations. It is a straightforward read operation that retrieves existing user records. The blast radius of misuse is minimal—an agent might discover unwanted user identities but cannot alter data or trigger external actions.
From the tool's definition Tool description states 'Find user by name' and explicitly indicates it is used to 'find users when you know their name' — a pure retrieval operation with no side effects.
Attacks that exploit this kind of access
Find user by name (first name, last name, or email). Use this to find users when you know their name. It is categorised as a Read tool in the Nuclino MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Nuclino MCP Server MCP server in PolicyLayer and add a rule for find_user_by_name: 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 Nuclino MCP Server. Nothing to install.
find_user_by_name 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 find_user_by_name 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 find_user_by_name. 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.
find_user_by_name is provided by the Nuclino MCP Server MCP server (urbantz-logistics/mcp-nuclino). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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