Get information about another Splitwise user by their user ID.
AI agents call splitwise_get_user to retrieve information from Splitwise 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 user information by ID without modifying, deleting, or executing any operations. It is a straightforward data query operation. The low severity reflects minimal blast radius—an AI agent using this tool can only view existing user data, not modify financial obligations, delete data, or trigger external actions.
From the tool's definition Tool name is 'splitwise_get_user' and description states 'Get information about another Splitwise user by their user ID.' The verb 'Get' and the retrieval-only nature of fetching user information indicates a read operation with no side effects.
Attacks that exploit this kind of access
Get information about another Splitwise user by their user ID. It is categorised as a Read tool in the Splitwise MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Splitwise MCP Server MCP server in PolicyLayer and add a rule for splitwise_get_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 Splitwise MCP Server. Nothing to install.
splitwise_get_user 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 splitwise_get_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 splitwise_get_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.
splitwise_get_user is provided by the Splitwise MCP Server MCP server (svarun115/splitwise-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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