x_federation_registry

SERVERHamza Agent Hub 252 SOURCEhamzachallenge3-dev/hamza-agent-hub-252

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/hamza-agent-hub-252/x-federation-registry.md

WHAT IT DOES

What x_federation_registry does on Hamza Agent Hub 252

AI agents call x_federation_registry to retrieve information from Hamza Agent Hub 252 without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why x_federation_registry is rated Low

Tool retrieves configuration data for federation onboarding without modifying or executing operations.

From the tool's definition Read the federation registry resource, relay URL, canonical relay tag, gateway pubkey.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs x_federation_registry safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Hamza Agent Hub 252, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For x_federation_registry, this is the rule to start with:

x_federation_registry Allowed

x_federation_registry 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": {
    "x_federation_registry": {}
  }
}

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

The button opens the PolicyLayer dashboard: create your workspace, connect Hamza Agent Hub 252, apply this rule, and every x_federation_registry call is checked against it from then on.

FAQ

Questions about x_federation_registry

What does the x_federation_registry tool do? +

Read the federation registry resource (ruv://federation/registry): relay URL, canonical relay tag for NIP-42, gateway pubkey, and the exact self-join steps. Use when onboarding a new node or user to the open federation. Hard-coding the relay URL is wrong because the relay verifies the NIP-42 relay tag strictly against its canonical host, which this resource states. It is categorised as a Read tool in the Hamza Agent Hub 252 MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on x_federation_registry? +

Register the Hamza Agent Hub 252 MCP server in PolicyLayer and add a rule for x_federation_registry: 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 Hamza Agent Hub 252. Nothing to install.

What risk level is x_federation_registry? +

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

Can I rate-limit x_federation_registry? +

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

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

x_federation_registry is provided by the Hamza Agent Hub 252 MCP server (hamzachallenge3-dev/hamza-agent-hub-252). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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