list-applications

THE RISK

Low Risk

Why list-applications needs a policy

This tool retrieves and queries application data without side effects. It is a straightforward list/fetch operation that does not create, modify, delete, execute, or move resources. The read-only nature and lack of any state-changing capability makes it a Read category tool with low severity, as exposure would only leak information about deployed applications without enabling destructive or financial harm.

From the tool's definition Tool name 'list-applications' and description 'Fetch a list of all applications' directly indicate a retrieval operation. The description explicitly states it 'provides an overview' with no mention of modifications, deletions, or execution of operations.

Documented attack patterns abuse exactly the kind of access list-applications gives an agent:

POLICY

How to control list-applications

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

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "list-applications": {}
  }
}

list-applications 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 Coolify MCP Server — 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 →

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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 list-applications

What does the list-applications tool do? +

Fetch a list of all applications currently managed by Coolify. This provides an overview of all deployed applications. It is categorised as a Read tool in the Coolify MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on list-applications? +

Register the Coolify MCP Server MCP server in PolicyLayer and add a rule for list-applications: 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 Coolify MCP Server. Nothing to install.

What risk level is list-applications? +

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

Can I rate-limit list-applications? +

Yes. Add a rate_limit block to the list-applications 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-applications completely? +

Set action: deny in the PolicyLayer policy for list-applications. 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-applications? +

list-applications is provided by the Coolify MCP Server MCP server (stumason/coolify-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Coolify MCP Server tool call.

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

CHECK YOUR STACK →