update_recurrent_next_date

THE RISK

Critical Risk

Why update_recurrent_next_date needs a policy

This tool modifies the scheduling of recurring financial charges. Altering when a recurring payment fires can cause premature billing, delayed billing, or financial disruption to customers or the business. It directly affects financial obligations and payment timing, placing it firmly in the Financial category.

From the tool's definition Update the next charge date of an existing recurrent payment

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

POLICY

How to control update_recurrent_next_date

PolicyLayer is an MCP gateway — it sits between your AI agents and Mcp Ap2, and nothing reaches the server without passing your rules. This is the rule we recommend for update_recurrent_next_date:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "update_recurrent_next_date": {
      "deny_if": [
        {
          "conditions": [],
          "on_deny": "Requires human approval."
        }
      ]
    }
  }
}

Any call to update_recurrent_next_date is blocked until a human approves it. The rest of the server keeps working.

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EXPLORE

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Go deeper

Critical-risk tools in Mcp Ap2 → 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.
Human-in-the-loop → When a tool call should wait for a person — and when policy can decide alone.
Tool call approval → Approval gates on individual tool calls: auto-allow, prompt, or deny.
How to Add Spending Controls to Any MCP Agent →
Rate Limiting MCP Tool Calls: A Practical Guide →

FAQ

Questions about update_recurrent_next_date

What does the update_recurrent_next_date tool do? +

Update the next charge date of an existing recurrent payment. It is categorised as a Financial tool in the Mcp Ap2 MCP Server, which means it involves financial transactions. Block by default and require explicit approval.

How do I enforce a policy on update_recurrent_next_date? +

Register the Mcp Ap2 MCP server in PolicyLayer and add a rule for update_recurrent_next_date: 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 Mcp Ap2. Nothing to install.

What risk level is update_recurrent_next_date? +

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

Can I rate-limit update_recurrent_next_date? +

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

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

update_recurrent_next_date is provided by the Mcp Ap2 MCP server (@codespar/mcp-ap2). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Mcp Ap2 tool call.

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