storage_charge_epoch · Tenzro Ledger MCP: Risk & Policy

WHAT IT DOES

What storage_charge_epoch does on Tenzro Ledger MCP

AI agents use storage_charge_epoch to commit financial operations through Tenzro Ledger MCP — usually the final step of a payment, billing, or trading workflow. A call moves real money.

WHY IT NEEDS A POLICY

Why storage_charge_epoch needs a policy

This tool executes a billing/charge cycle for a storage deal, which constitutes committing a financial obligation or moving funds. The phrase 'charge epoch' directly implies a payment or fee collection event.

From the tool's definition 'charge epoch for a storage deal' — triggers a financial charging event gated on proof-of-retrievability

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

storage_charge_epoch Approval-gated

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

View as policy code

policy.json

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

GATE THIS TOOL →

Instant setup, no code required.

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

FAQ

Questions about storage_charge_epoch

What does the storage_charge_epoch tool do? +

Run one proof-of-retrievability-gated charge epoch for a storage deal. It is categorised as a Financial tool in the Tenzro Ledger MCP MCP Server, which means it involves financial transactions. Block by default and require explicit approval.

How do I enforce a policy on storage_charge_epoch? +

Register the Tenzro Ledger MCP server in PolicyLayer and add a rule for storage_charge_epoch: 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 Tenzro Ledger MCP. Nothing to install.

What risk level is storage_charge_epoch? +

storage_charge_epoch 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 storage_charge_epoch? +

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

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

storage_charge_epoch is provided by the Tenzro Ledger MCP server (https://canton-mcp.tenzro.network/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.