Critical Risk →

unsplit_transactions

Remove transactions from split groups

Restructures financial records

Part of the Lunch Money MCP server. Enforce policies on this tool with Intercept, the open-source MCP proxy.

AI agents may call unsplit_transactions 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. Intercept blocks destructive tools by default and requires explicit human approval before enabling them.

Without a policy, an AI agent could call unsplit_transactions in a loop, permanently destroying resources in Lunch Money. There is no undo for destructive operations. Intercept 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.

lunch-money.yaml
tools:
  unsplit_transactions:
    rules:
      - action: deny
        reason: "Blocked by default — enable with approval"

See the full Lunch Money policy for all 29 tools.

Tool Name unsplit_transactions
Category Destructive
Risk Level Critical

View all 29 tools →

Agents calling destructive-class tools like unsplit_transactions have been implicated in these attack patterns. Read the full case and prevention policy for each:

Browse the full MCP Attack Database →

Other tools in the Destructive risk category across the catalogue. The same policy patterns (deny, require_approval) apply to each.

unsplit_transactions is one of the critical-risk operations in Lunch Money. For the full severity-focused view — only the critical-risk tools with their recommended policies — see the breakdown for this server, or browse all critical-risk tools across every MCP server.

What does the unsplit_transactions tool do? +

Remove transactions from split groups. 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 unsplit_transactions? +

Add a rule in your Intercept YAML policy under the tools section for unsplit_transactions. You can allow, deny, rate-limit, or validate arguments. Then run Intercept as a proxy in front of the Lunch Money MCP server.

What risk level is unsplit_transactions? +

unsplit_transactions 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 unsplit_transactions? +

Yes. Add a rate_limit block to the unsplit_transactions rule in your Intercept 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 unsplit_transactions completely? +

Set action: deny in the Intercept policy for unsplit_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 unsplit_transactions? +

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

Let agents act without letting them run wild.

Deterministic policy on every MCP tool call. Per-identity grants. Full audit log.

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