list_expenses
AI agents call list_expenses to retrieve information from Simple Remote MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The tool name strongly suggests a query/list operation typical of Read category tools. While the empty description reduces confidence slightly, the naming convention and lack of any mutation-indicating verbs (delete, modify, pay, execute) support classification as a Read operation with low severity and blast radius.
From the tool's definition Tool name 'list_expenses' indicates a retrieval operation. The description is empty, but the name pattern and context (sibling tools include 'add_expense' and 'summarize') suggests this queries/lists expense data without modification.
Attacks that exploit this kind of access
list_expenses. It is categorised as a Read tool in the Simple Remote MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Simple Remote MCP Server MCP server in PolicyLayer and add a rule for list_expenses: 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 Simple Remote MCP Server. Nothing to install.
list_expenses 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 list_expenses 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 list_expenses. 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.
list_expenses is provided by the Simple Remote MCP Server MCP server (parthsharma1197/remote-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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