Get information about the currently authenticated user
AI agents call linear_getViewer to retrieve information from Linear 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 profile information without modifying, deleting, or executing any operations. It is a straightforward read operation that retrieves data about the authenticated user. The blast radius is minimal—exposure only reveals user identity and profile details already accessible to authenticated sessions.
From the tool's definition Tool name 'linear_getViewer' and description 'Get information about the currently authenticated user' indicate a retrieval operation with no side effects.
Attacks that exploit this kind of access
Get information about the currently authenticated user. It is categorised as a Read tool in the Linear MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Linear MCP Server MCP server in PolicyLayer and add a rule for linear_getViewer: 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 Linear MCP Server. Nothing to install.
linear_getViewer 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 linear_getViewer 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 linear_getViewer. 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.
linear_getViewer is provided by the Linear MCP Server MCP server (wkoutre/linear-mcp-server). 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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