permit2_digest

Compute the EIP-712 digest a user signs for a Permit2

SERVERTenzro Ledger MCP SOURCEhttps://canton-mcp.tenzro.network/mcp

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/network-tenzro-tenzro/permit2-digest.md

WHAT IT DOES

What permit2_digest does on Tenzro Ledger MCP

AI agents call permit2_digest to retrieve information from Tenzro Ledger MCP without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why permit2_digest is rated Low

This tool computes/calculates a cryptographic digest for signing purposes. It does not submit transactions, move funds, or modify state — it only performs a local computation to produce the data that would be signed. However, it exists in a financial context (payments, wallet), so misuse could facilitate phishing or signing attacks, but the tool itself is a read/compute operation.

From the tool's definition Compute the EIP-712 digest a user signs for a Permit2

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs permit2_digest safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Tenzro Ledger MCP, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For permit2_digest, this is the rule to start with:

permit2_digest Allowed

permit2_digest is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "permit2_digest": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Tenzro Ledger MCP, apply this rule, and every permit2_digest call is checked against it from then on.

FAQ

Questions about permit2_digest

What does the permit2_digest tool do? +

Compute the EIP-712 digest a user signs for a Permit2. It is categorised as a Read tool in the Tenzro Ledger MCP MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on permit2_digest? +

Register the Tenzro Ledger MCP server in PolicyLayer and add a rule for permit2_digest: 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 permit2_digest? +

permit2_digest is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit permit2_digest? +

Yes. Add a rate_limit block to the permit2_digest 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 permit2_digest completely? +

Set action: deny in the PolicyLayer policy for permit2_digest. 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 permit2_digest? +

permit2_digest 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.

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