Get the user
AI agents call get_user_timeline to retrieve information from X 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 or queries data from a user's timeline without creating, modifying, or deleting any content. It is a read-only operation consistent with the Read category definition (search, list, get, fetch). The severity is low because even if misused by an AI agent, retrieval of publicly available timeline data poses minimal risk, though privacy considerations may apply depending on account permissions.
From the tool's definition Tool name 'get_user_timeline' and function to 'retrieve user timelines' and 'Get the user' indicate a retrieval operation with no side effects.
Attacks that exploit this kind of access
Get the user. It is categorised as a Read tool in the X MCP Server MCP Server, which means it retrieves data without modifying state.
Register the X MCP Server MCP server in PolicyLayer and add a rule for get_user_timeline: 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 X MCP Server. Nothing to install.
get_user_timeline 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 get_user_timeline 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 get_user_timeline. 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.
get_user_timeline is provided by the X MCP Server MCP server (krishna-paulraj/x-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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