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MegaCloud MCP Server

MegaCloud MCP Server

Official
by megaease
OverviewSchemaSourceRelated ServersDiscussionsAdmin
Python
Remote

list_middleware_instances

Retrieve a list of all currently deployed middleware instances in your environment.

Instructions

List all middleware instances that are currently deployed.

Tool call template

This tool declares no required parameters. Add optional parameters from the input schema as needed.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {},
    "name": "list_middleware_instances"
  }
}

Input Schema

NameRequiredDescriptionDefault

No arguments

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv0.1.0

TDQS

B3.1/5.0
Behavior2/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

No annotations are provided, so the description carries the full burden. It only states 'list' implying a read operation, but fails to disclose any behavioral traits such as potential pagination, performance implications, or whether the list includes all instances across environments.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is a single sentence that is concise and front-loaded, effectively conveying the core functionality without unnecessary words.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness3/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

The tool has no parameters and no output schema, so the bar for completeness is lower. The description states the basic purpose, but lacks details on return format, ordering, or any filtering capabilities, which are common for list operations. It is minimally adequate.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

The input schema is empty with 100% coverage, so the schema already fully describes the parameters (none). The description adds no additional parameter meaning, but per the calibration, baseline is 3 when coverage is high.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the tool lists all currently deployed middleware instances, using a specific verb 'List' and specifying the resource. While it is clear, it does not explicitly differentiate from sibling list tools that focus on specific aspects like nodes or logs, but the scope is evident.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines2/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description provides no guidance on when to use this tool versus alternatives. Siblings like list_middleware_instance_nodes or list_middleware_instance_logs exist, but no mention of when to choose this one over them.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

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