contacts-get

Fetch the contact list (kind 3 follows) for a Nostr identity. Accepts any identifier: name, NIP-05, npub, or hex pubkey.

SERVERNostr Bray SOURCEnostr-bray

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/dev-forgesworn-bray/contacts-get.md

WHAT IT DOES

What contacts-get does on Nostr Bray

AI agents call contacts-get to retrieve information from Nostr Bray without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why contacts-get is rated Low

The tool retrieves and queries data (a contact/follows list) without modifying, deleting, or executing operations. It accepts flexible identifier formats but performs no mutations or external state changes. Matches the Read category definition: retrieves or queries data; no side effects.

From the tool's definition Tool description states 'Fetch the contact list' — a read-only retrieval operation with no side effects. Returns existing Nostr follow data (kind 3 event).

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs contacts-get safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Nostr Bray, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For contacts-get, this is the rule to start with:

contacts-get Allowed

contacts-get is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "contacts-get": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Nostr Bray, apply this rule, and every contacts-get call is checked against it from then on.

FAQ

Questions about contacts-get

What does the contacts-get tool do? +

Fetch the contact list (kind 3 follows) for a Nostr identity. Accepts any identifier: name, NIP-05, npub, or hex pubkey. It is categorised as a Read tool in the Nostr Bray MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on contacts-get? +

Register the Nostr Bray MCP server in PolicyLayer and add a rule for contacts-get: 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 Bray. Nothing to install.

What risk level is contacts-get? +

contacts-get is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit contacts-get? +

Yes. Add a rate_limit block to the contacts-get 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 contacts-get completely? +

Set action: deny in the PolicyLayer policy for contacts-get. 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 contacts-get? +

contacts-get is provided by the Nostr Bray MCP server (nostr-bray). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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