connection_state

THE RISK

Low Risk

Why connection_state needs a policy

This tool retrieves connection status information (open, connecting, close) from an instance—a pure read operation with no side effects, data modification, code execution, or destructive action. The low severity reflects minimal blast radius if misused by an agent.

From the tool's definition Tool name 'connection_state' and description 'Get the connection state of an instance' indicate a retrieval operation that queries state without modification.

Documented attack patterns abuse exactly the kind of access connection_state gives an agent:

POLICY

How to control connection_state

PolicyLayer is an MCP gateway — it sits between your AI agents and Mcp Ap2, and nothing reaches the server without passing your rules. This is the rule we recommend for connection_state:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "connection_state": {}
  }
}

connection_state 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 Ap2 — 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

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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 connection_state

What does the connection_state tool do? +

Get the connection state of an instance (open, connecting, close). It is categorised as a Read tool in the Mcp Ap2 MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on connection_state? +

Register the Mcp Ap2 MCP server in PolicyLayer and add a rule for connection_state: 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 Ap2. Nothing to install.

What risk level is connection_state? +

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

Can I rate-limit connection_state? +

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

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

connection_state is provided by the Mcp Ap2 MCP server (@codespar/mcp-ap2). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Mcp Ap2 tool call.

Start from Mcp Ap2, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →