list_mcp_server_capabilities

SERVERPortkey Admin SOURCEcodeswhat/portkey-admin-mcp

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/codeswhat-portkey-admin-mcp/list-mcp-server-capabilities.md

WHAT IT DOES

What list_mcp_server_capabilities does on Portkey Admin

AI agents call list_mcp_server_capabilities to retrieve information from Portkey Admin 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_mcp_server_capabilities is rated Low

This tool retrieves and reports metadata about MCP server capabilities. It performs only information gathering and introspection with no ability to modify, delete, or execute operations. The blast radius of misuse is minimal since it merely exposes what is already available on the server.

From the tool's definition Tool name is 'list_mcp_server_capabilities' and description states it 'List capabilities exposed by an MCP server instance. Returns total plus the current tool, resource, and prompt surface' — this is a query/inspection operation with no side effects.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs list_mcp_server_capabilities safely

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

list_mcp_server_capabilities Allowed

list_mcp_server_capabilities 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_mcp_server_capabilities": {}
  }
}

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

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

FAQ

Questions about list_mcp_server_capabilities

What does the list_mcp_server_capabilities tool do? +

List capabilities exposed by an MCP server instance. Returns total plus the current tool, resource, and prompt surface; use this instead of the integration-level capability list when you need server-specific exposure. It is categorised as a Read tool in the Portkey Admin MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on list_mcp_server_capabilities? +

Register the Portkey Admin MCP server in PolicyLayer and add a rule for list_mcp_server_capabilities: 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 Portkey Admin. Nothing to install.

What risk level is list_mcp_server_capabilities? +

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

Can I rate-limit list_mcp_server_capabilities? +

Yes. Add a rate_limit block to the list_mcp_server_capabilities 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_mcp_server_capabilities completely? +

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

list_mcp_server_capabilities is provided by the Portkey Admin MCP server (codeswhat/portkey-admin-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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