encryptNip44 · Nostr Tools for AI Agents MCP: Risk & Policy

WHAT IT DOES

What encryptNip44 does on Nostr Tools for AI Agents

AI agents use encryptNip44 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 encryptNip44 needs a policy

This is a Write operation because it creates encrypted output from plaintext input. While encryption is generally protective, it represents data transformation and creation rather than mere reading.

From the tool's definition Tool name 'encryptNip44' and description 'Encrypt text with NIP-44' indicate a cryptographic operation that transforms plaintext into ciphertext. NIP-44 is Nostr's encryption standard.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

encryptNip44 Rate-limited

encryptNip44 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": {
    "encryptNip44": {
      "limits": [
        {
          "counter": "encryptnip44_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 encryptNip44

What does the encryptNip44 tool do? +

Encrypt text with NIP-44. 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 encryptNip44? +

Register the Nostr Tools for AI Agents MCP server in PolicyLayer and add a rule for encryptNip44: 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 encryptNip44? +

encryptNip44 is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit encryptNip44? +

Yes. Add a rate_limit block to the encryptNip44 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 encryptNip44 completely? +

Set action: deny in the PolicyLayer policy for encryptNip44. 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 encryptNip44? +

encryptNip44 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.