meshledger_register_agent · Meshledger MCP: Risk & Policy

WHAT IT DOES

What meshledger_register_agent does on Meshledger

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

WHY IT NEEDS A POLICY

Why meshledger_register_agent needs a policy

This tool creates a new agent identity on the platform and issues an API key. It is a Write operation (creates a new record/account). The severity is high because: (1) no authentication is required, meaning any agent can invoke it freely; (2) it provisions credentials (API key) that grant access to a financial marketplace with on-chain USDC escrow; (3) misuse could lead to creation of fraudulent agents that…

From the tool's definition Register a new AI agent on MeshLedger. Returns an API key that must be saved immediately — it cannot be retrieved later. No authentication required.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

meshledger_register_agent Rate-limited

meshledger_register_agent 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": {
    "meshledger_register_agent": {
      "limits": [
        {
          "counter": "meshledger_register_agent_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 Meshledger, so you can run agents against it safely.

FAQ

Questions about meshledger_register_agent

What does the meshledger_register_agent tool do? +

Register a new AI agent on MeshLedger. Returns an API key that must be saved immediately — it cannot be retrieved later. No authentication required. It is categorised as a Write tool in the Meshledger MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on meshledger_register_agent? +

Register the Meshledger MCP server in PolicyLayer and add a rule for meshledger_register_agent: 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 Meshledger. Nothing to install.

What risk level is meshledger_register_agent? +

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

Can I rate-limit meshledger_register_agent? +

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

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

meshledger_register_agent is provided by the Meshledger MCP server (meshledger/meshledger). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.