list_transactions
AI agents call list_transactions to retrieve information from Finance App without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
List operations are queries that retrieve existing data with no side effects. In the context of a double-entry accounting system, listing transactions retrieves transaction records for viewing/analysis purposes only. The naming convention and functional pattern align with read-only access.
From the tool's definition Tool name 'list_transactions' indicates a retrieval operation. The pattern matches other sibling Read tools like 'get_account_balance', 'get_budget_status', 'get_financial_insights', 'get_financial_snapshot', and 'get_net_worth'.
Attacks that exploit this kind of access
list_transactions. It is categorised as a Read tool in the Finance App MCP Server, which means it retrieves data without modifying state.
Register the Finance App MCP server in PolicyLayer and add a rule for list_transactions: 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 Finance App. Nothing to install.
list_transactions 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_transactions 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_transactions. 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_transactions is provided by the Finance App MCP server (youssefaltai/finance-app). 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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