updateProfile · Nostr Tools for AI Agents MCP: Risk & Policy

WHAT IT DOES

What updateProfile does on Nostr Tools for AI Agents

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

WHY IT NEEDS A POLICY

Why updateProfile needs a policy

This tool creates or modifies user profile data on the Nostr network by merging new profile information with existing data. The operation is reversible (the profile can be updated again with different values), making it a Write rather than Destructive action.

From the tool's definition Tool description states 'Update an existing Nostr profile (merges with current)' — an update operation that modifies data reversibly. The action modifies profile metadata on a Nostr relay, which is characteristic of Write operations.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

updateProfile Rate-limited

updateProfile 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": {
    "updateProfile": {
      "limits": [
        {
          "counter": "updateprofile_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 Nostr Tools for AI Agents, so you can run agents against it safely.

FAQ

Questions about updateProfile

What does the updateProfile tool do? +

Update an existing Nostr profile (merges with current). It is categorised as a Write tool in the Nostr Tools for AI Agents MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on updateProfile? +

Register the Nostr Tools for AI Agents MCP server in PolicyLayer and add a rule for updateProfile: 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 Nostr Tools for AI Agents. Nothing to install.

What risk level is updateProfile? +

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

Can I rate-limit updateProfile? +

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

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

updateProfile is provided by the Nostr Tools for AI Agents MCP server (jorgenclaw/nostr-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.