federation_admit

Admit a pubkey as a relay member directly (NIP-43 kind 9030). Requires the admin token; OAuth swarm:publish is not sufficient.

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

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/hamza-agent-hub-252/federation-admit.md

WHAT IT DOES

What federation_admit does on Hamza Agent Hub 252

AI agents use federation_admit to create or update resources in Hamza Agent Hub 252, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Hamza Agent Hub 252 environment.

RISK

Why federation_admit is rated Medium

Grants relay membership to a public key, a privileged write action requiring admin token.

From the tool's definition Admit a pubkey as a relay member directly

Risk signalsAdmin/system-level operation

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs federation_admit 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 federation_admit, this is the rule to start with:

federation_admit Rate-limited

federation_admit 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": {
    "federation_admit": {
      "limits": [
        {
          "counter": "federation_admit_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT 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 federation_admit call is checked against it from then on.

FAQ

Questions about federation_admit

What does the federation_admit tool do? +

Admit a pubkey as a relay member directly (NIP-43 kind 9030). Requires the admin token; OAuth swarm:publish is not sufficient. It is categorised as a Write tool in the Hamza Agent Hub 252 MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on federation_admit? +

Register the Hamza Agent Hub 252 MCP server in PolicyLayer and add a rule for federation_admit: 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 federation_admit? +

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

Can I rate-limit federation_admit? +

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

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

federation_admit 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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