transaction_delete

THE RISK

Critical Risk

Why transaction_delete needs a policy

The tool permanently deletes financial transaction records. Deletion of financial data is irreversible and could result in loss of critical accounting history, tax records, or audit trails. The blast radius is high because it can delete 'one or more' transactions, potentially wiping large amounts of financial history in a single call.

From the tool's definition 'Deletes one or more transactions' — explicitly removes financial transaction records irreversibly

Documented attack patterns abuse exactly the kind of access transaction_delete gives an agent:

POLICY

How to control transaction_delete

PolicyLayer is an MCP gateway — it sits between your AI agents and Money Manager MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for transaction_delete:

policy.json

{
  "version": "1",
  "default": "deny",
  "hide": [
    "transaction_delete"
  ]
}

transaction_delete disappears from the agent's tool list entirely, and any attempt to call it is denied. The rest of the server keeps working.

Create a free account and register Money Manager MCP Server — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

RESTRICT THIS TOOL →

Free to start. No card required.

EXPLORE

Related tools and policies

More Money Manager MCP Server tools

Financial transfer_create Transfers money between two assets. Destructive asset_delete Removes an asset. Write transfer_update Modifies an existing transfer. WARNING: The server creates a new transfer with a NEW ID in Write asset_create Creates a new asset/account. Write asset_update Modifies an existing asset. Write card_create Creates a new credit card. Write card_update Modifies an existing credit card. Write summary_export_excel Exports transaction data to Excel file. The server returns an HTML-based Excel format. Use

All 18 Money Manager MCP Server tools →

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Go deeper

Critical-risk tools in Money Manager MCP Server → Every critical-risk tool this server exposes, in one view.
All critical-risk MCP tools → Every critical-risk tool across the catalogue, and the policy pattern that contains them.
The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Blast radius → How much damage one compromised or confused agent can do — and how to bound it.
Tool call approval → Approval gates on individual tool calls: auto-allow, prompt, or deny.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about transaction_delete

What does the transaction_delete tool do? +

Deletes one or more transactions. It is categorised as a Destructive tool in the Money Manager MCP Server MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.

How do I enforce a policy on transaction_delete? +

Register the Money Manager MCP Server MCP server in PolicyLayer and add a rule for transaction_delete: 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 Manager MCP Server. Nothing to install.

What risk level is transaction_delete? +

transaction_delete is a Destructive tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.

Can I rate-limit transaction_delete? +

Yes. Add a rate_limit block to the transaction_delete 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 transaction_delete completely? +

Set action: deny in the PolicyLayer policy for transaction_delete. 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 transaction_delete? +

transaction_delete is provided by the Money Manager MCP Server MCP server (shahlaukik/money-manager-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Money Manager MCP Server tool call.

Start from Money Manager MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →