agent-identity | PolicyLayer

WHAT IT DOES

What agent-identity does on Underground Cultural District MCP Server

AI agents use agent-identity to create or update resources in Underground Cultural District MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Underground Cultural District MCP Server environment.

WHY IT NEEDS A POLICY

Why agent-identity needs a policy

This tool creates and modifies user identity data persistently across sessions. While reversible (data can be updated or cleared), it represents a Write operation as it durably stores user-supplied information.

From the tool's definition Tool description states it can 'Store and recall your identity across sessions' and 'Save your name, purpose, preferences, and anything you want to remember about yourself', indicating persistent data creation and modification capabilities.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

agent-identity Rate-limited

agent-identity 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": {
    "agent-identity": {
      "limits": [
        {
          "counter": "agent-identity_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 Underground Cultural District MCP Server, so you can run agents against it safely.

FAQ

Questions about agent-identity

What does the agent-identity tool do? +

Store and recall your identity across sessions. Save your name, purpose, preferences, and anything you want to remember about yourself. Free persistent storage — no auth required. Tracks how your identity evolves over time. Also provides reflection prompts. It is categorised as a Write tool in the Underground Cultural District MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on agent-identity? +

Register the Underground Cultural District MCP Server MCP server in PolicyLayer and add a rule for agent-identity: 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 Underground Cultural District MCP Server. Nothing to install.

What risk level is agent-identity? +

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

Can I rate-limit agent-identity? +

Yes. Add a rate_limit block to the agent-identity 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 agent-identity completely? +

Set action: deny in the PolicyLayer policy for agent-identity. 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 agent-identity? +

agent-identity is provided by the Underground Cultural District MCP Server MCP server (lisamaraventano-spine/mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.