mcp_registrar · Mcp Colombia MCP: Risk & Policy

WHAT IT DOES

What mcp_registrar does on Mcp Colombia

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

WHY IT NEEDS A POLICY

Why mcp_registrar needs a policy

This tool creates a new record (registration) in an on-chain registry. It is a write operation that creates data on a blockchain. While on-chain writes are generally irreversible, the action itself is a registration/creation rather than a deletion or financial transaction.

From the tool's definition Registra un nuevo servidor MCP en MCPRegistry on-chain

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

mcp_registrar Rate-limited

mcp_registrar 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": {
    "mcp_registrar": {
      "limits": [
        {
          "counter": "mcp_registrar_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 Mcp Colombia, so you can run agents against it safely.

FAQ

Questions about mcp_registrar

What does the mcp_registrar tool do? +

Registra un nuevo servidor MCP en MCPRegistry on-chain. Cualquiera puede registrarse; la verificación la hace el superAdmin. It is categorised as a Write tool in the Mcp Colombia MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on mcp_registrar? +

Register the Mcp Colombia MCP server in PolicyLayer and add a rule for mcp_registrar: 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 Mcp Colombia. Nothing to install.

What risk level is mcp_registrar? +

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

Can I rate-limit mcp_registrar? +

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

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

mcp_registrar is provided by the Mcp Colombia MCP server (manuelariasfz/mcp-colombia). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.