Critical Risk →

delete_transaction_attachment

Delete a transaction file attachment. Irreversible.

Part of the Lunch Money server.

delete_transaction_attachment can permanently delete data in Lunch Money, with no limits today. PolicyLayer puts allow, deny, and rate-limit rules on every call. Live in minutes.

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AI agents may call delete_transaction_attachment to permanently remove or destroy resources in Lunch Money. Without a policy, an autonomous agent could delete critical data in a loop with no way to undo the damage. PolicyLayer blocks destructive tools by default and requires explicit human approval before enabling them.

Without a policy, an AI agent could call delete_transaction_attachment in a loop, permanently destroying resources in Lunch Money. There is no undo for destructive operations. PolicyLayer blocks this tool by default and only allows it when a human explicitly approves the action.

Destructive tools permanently remove data. Block by default. Only enable with explicit approval workflows.

policy.json
{
  "version": "1",
  "default": "deny",
  "hide": [
    "delete_transaction_attachment"
  ]
}

See the full Lunch Money policy for all 44 tools.

Get this rule live on your own Lunch Money server in minutes. PolicyLayer enforces it on every call, before it runs.

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These attack patterns abuse exactly the kind of access delete_transaction_attachment gives an agent. Each links to the full case and the policy that stops it:

Browse the full MCP Attack Database →

Every attack above starts with a tool call. PolicyLayer checks each one against your policy first, so delete_transaction_attachment only ever does what you allow.

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Other destructive tools across the catalogue. The same approach applies to each: deny by default, or require human approval.

What does the delete_transaction_attachment tool do? +

Delete a transaction file attachment. Irreversible.. It is categorised as a Destructive tool in the Lunch Money 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 delete_transaction_attachment? +

Register the Lunch Money MCP server in PolicyLayer and add a rule for delete_transaction_attachment: 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 Lunch Money. Nothing to install.

What risk level is delete_transaction_attachment? +

delete_transaction_attachment 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 delete_transaction_attachment? +

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

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

delete_transaction_attachment is provided by the Lunch Money MCP server (@akutishevsky/lunchmoney-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Lunch Money tool call.

Deterministic rules across all 44 Lunch Money tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.

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4,600+ MCP servers and 31,000+ tools scanned and risk-classified.

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