list_connections

List all connected services, their types, and capability counts.

SERVER0nmcp SOURCE0nmcp

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/io-github-0nork-0nmcp/list-connections.md

WHAT IT DOES

What list_connections does on 0nmcp

AI agents call list_connections to retrieve information from 0nmcp without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why list_connections is rated Low

This tool performs a read-only query operation to enumerate connected services and metadata. It has no side effects, does not create, modify, delete, or execute anything. The blast radius of misuse is minimal—an agent could learn about available services but cannot interact with them through this tool alone. This is a standard informational query operation.

From the tool's definition Tool name 'list_connections' with description 'List all connected services, their types, and capability counts' indicates a retrieval operation that queries and returns information about existing service connections without modifying or executing any actions.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs list_connections safely

PolicyLayer is an MCP gateway: it sits between your AI agents and 0nmcp, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For list_connections, this is the rule to start with:

list_connections Allowed

list_connections 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": {
    "list_connections": {}
  }
}

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

The button opens the PolicyLayer dashboard: create your workspace, connect 0nmcp, apply this rule, and every list_connections call is checked against it from then on.

FAQ

Questions about list_connections

What does the list_connections tool do? +

List all connected services, their types, and capability counts. It is categorised as a Read tool in the 0nmcp MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on list_connections? +

Register the 0n MCP server in PolicyLayer and add a rule for list_connections: 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 0nmcp. Nothing to install.

What risk level is list_connections? +

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

Can I rate-limit list_connections? +

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

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

list_connections is provided by the 0n MCP server (0nmcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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