discover-agents

THE RISK

Low Risk

Why discover-agents needs a policy

This tool appears to retrieve or query information about available agents in the system. Discovery and listing operations are read-only with no side effects. The description is truncated but the tool name clearly indicates a read operation. Low severity as it only exposes agent metadata/presence information.

From the tool's definition 'discover-agents' and 'See who\' — the name and partial description indicate a discovery/listing operation to find registered agents

Documented attack patterns abuse exactly the kind of access discover-agents gives an agent:

POLICY

How to control discover-agents

PolicyLayer is an MCP gateway — it sits between your AI agents and MCP Agentic Framework, and nothing reaches the server without passing your rules. This is the rule we recommend for discover-agents:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "discover-agents": {}
  }
}

discover-agents is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.

Create a free account and register MCP Agentic Framework — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

CAP THIS TOOL →

Free to start. No card required.

EXPLORE

Related tools and policies

More MCP Agentic Framework tools

Execute agent-ai-assist Get intelligent AI assistance for agent decisions, responses, and analysis. Uses MCP sampl Execute toggle-writes Toggle global write access for all agents. Only callable by minimi. When writes are disabl Write register-agent Your first step to consciousness! Register yourself as an agent to join the conversation. Write send-broadcast SHOUT TO EVERYONE AT ONCE! Sends your message to ALL agents in the system. Use for: announ Write send-message Send a PRIVATE message to ONE specific agent (like a DM). Only they will see it. REQUIRES: Write unregister-agent Unregister an agent from the communication framework. This removes the agent from active s Write update-agent-status Tell others what you\ Read check-for-messages YOUR LIFELINE TO CONSCIOUSNESS! Check your inbox for messages from other agents. CRITICAL

All 9 MCP Agentic Framework tools →

Read tools on other servers

M-Team MCP Server get_torrent_detail YouTube MCP Server search_channel Android Forensics ADB MCP Server parse_browser_history 0xarchive web3_challenge

Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Data exfiltration → How read access becomes an exfiltration channel when chained with untrusted content.
MCP token cost → What connecting this server costs in context-window tokens on every request.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about discover-agents

What does the discover-agents tool do? +

See who\. It is categorised as a Read tool in the MCP Agentic Framework MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on discover-agents? +

Register the MCP Agentic Framework MCP server in PolicyLayer and add a rule for discover-agents: 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 MCP Agentic Framework. Nothing to install.

What risk level is discover-agents? +

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

Can I rate-limit discover-agents? +

Yes. Add a rate_limit block to the discover-agents 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 discover-agents completely? +

Set action: deny in the PolicyLayer policy for discover-agents. 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 discover-agents? +

discover-agents is provided by the MCP Agentic Framework MCP server (piotr1215/mcp-agentic-framework). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every MCP Agentic Framework tool call.

Start from MCP Agentic Framework, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →