store_transactions · My Finance MCP Server MCP

WHAT IT DOES

What store_transactions does on My Finance MCP Server

AI agents use store_transactions to create or update resources in My Finance MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your My Finance MCP Server environment.

WHY IT NEEDS A POLICY

Why store_transactions needs a policy

The name 'store_transactions' strongly implies creating or persisting new financial transaction records into ChromaDB and JSON storage, which is a Write operation. While the description is empty (lowering confidence), the sibling tools and server context confirm this is a data-persistence tool.

From the tool's definition Tool name 'store_transactions' on a personal finance MCP server; description is empty so reasoning is inferred from name and sibling tools (delete_transactions, list_transactions, query_financial_history).

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

store_transactions Rate-limited

store_transactions stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "store_transactions": {
      "limits": [
        {
          "counter": "store_transactions_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches My Finance MCP Server, so you can run agents against it safely.

FAQ

Questions about store_transactions

What does the store_transactions tool do? +

store_transactions. It is categorised as a Write tool in the My Finance MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on store_transactions? +

Register the My Finance MCP Server MCP server in PolicyLayer and add a rule for store_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 My Finance MCP Server. Nothing to install.

What risk level is store_transactions? +

store_transactions is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit store_transactions? +

Yes. Add a rate_limit block to the store_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.

How do I block store_transactions completely? +

Set action: deny in the PolicyLayer policy for store_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.

What MCP server provides store_transactions? +

store_transactions is provided by the My Finance MCP Server MCP server (xinrong-meng/my-finance-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.