permit2_domain_separator

Read the per-chain Permit2 EIP-712 domain separator.

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-domain-separator.md

WHAT IT DOES

What permit2_domain_separator does on Tenzro Ledger MCP

AI agents call permit2_domain_separator 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_domain_separator is rated Low

This tool retrieves a read-only cryptographic domain separator used in EIP-712 signing. Domain separators are public constants that enable signature verification and prevent signature replay attacks across chains. Reading this value has no side effects, creates no data modifications, and poses minimal risk to system integrity.

From the tool's definition Tool name 'permit2_domain_separator' and description 'Read the per-chain Permit2 EIP-712 domain separator' explicitly use the word 'Read' and retrieve a domain separator value with no side effects.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs permit2_domain_separator 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_domain_separator, this is the rule to start with:

permit2_domain_separator Allowed

permit2_domain_separator 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_domain_separator": {}
  }
}

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_domain_separator call is checked against it from then on.

FAQ

Questions about permit2_domain_separator

What does the permit2_domain_separator tool do? +

Read the per-chain Permit2 EIP-712 domain separator. 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_domain_separator? +

Register the Tenzro Ledger MCP server in PolicyLayer and add a rule for permit2_domain_separator: 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_domain_separator? +

permit2_domain_separator is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit permit2_domain_separator? +

Yes. Add a rate_limit block to the permit2_domain_separator 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_domain_separator completely? +

Set action: deny in the PolicyLayer policy for permit2_domain_separator. 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_domain_separator? +

permit2_domain_separator 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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