submit_reserve_attestation · Tenzro Ledger MCP

WHAT IT DOES

What submit_reserve_attestation does on Tenzro Ledger MCP

AI agents use submit_reserve_attestation to create or update resources in Tenzro Ledger MCP — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Tenzro Ledger MCP environment.

WHY IT NEEDS A POLICY

Why submit_reserve_attestation needs a policy

submit_reserve_attestation creates or records a new attestation entry on the ledger. This is a Write operation because it modifies ledger state by adding an attestation record. Severity is high because attestations backing tokenized assets (Proof of Reserve) are critical financial artifacts — misuse could record false reserves, inflating asset backing or enabling fraud.

From the tool's definition Tool description states 'Record a signed reserve attestation' — the verb 'Record' indicates data creation/modification.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

submit_reserve_attestation Rate-limited

submit_reserve_attestation stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "submit_reserve_attestation": {
      "limits": [
        {
          "counter": "submit_reserve_attestation_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT 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 submit_reserve_attestation

What does the submit_reserve_attestation tool do? +

Record a signed reserve attestation backing a tokenized asset (PoR):. It is categorised as a Write tool in the Tenzro Ledger MCP MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on submit_reserve_attestation? +

Register the Tenzro Ledger MCP server in PolicyLayer and add a rule for submit_reserve_attestation: 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 submit_reserve_attestation? +

submit_reserve_attestation is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit submit_reserve_attestation? +

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

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

submit_reserve_attestation 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.