Free-form search across transactions using optional filters (walletId, categoryId, keyword, parties). Use this when no date range is given or when doing a keyword/label search instead of a date-range fetch.
AI agents call search_transactions to retrieve information from Money Lover 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 transaction data based on search criteria without altering, deleting, or executing operations. It fits the Read category pattern of querying existing data. While the server includes write and destructive capabilities (add_transaction, delete_transaction, etc.), this specific tool is limited to retrieval.
From the tool's definition Tool description states it performs a 'Free-form search across transactions' with optional filters; no mention of creation, modification, or deletion of data.
Attacks that exploit this kind of access
Free-form search across transactions using optional filters (walletId, categoryId, keyword, parties). Use this when no date range is given or when doing a keyword/label search instead of a date-range fetch. It is categorised as a Read tool in the Money Lover MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Money Lover MCP Server MCP server in PolicyLayer and add a rule for search_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 Money Lover MCP Server. Nothing to install.
search_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 search_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 search_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.
search_transactions is provided by the Money Lover MCP Server MCP server (juansebashr/moneylover-mcp). 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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