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OpManager MCP Server

OpManager MCP Server

by sachdev27
OverviewSchemaSourceRelated ServersDiscussionsAdmin
Python
Remote

getVMWareHosts

Retrieve all VMware hosts managed by a specified vCenter device in OpManager. Provide the vCenter device name to get its hosts.

Instructions

getVMWareHosts

Category: Manage and query network devices

Key parameters:

  • name: Name of the vCenter device - Managed Entity name as seen in

Tool call template

Replace each placeholder with a value matching the input schema. Only required parameters are included; add optional parameters as needed.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {
      "host": "<host>",
      "apiKey": "<apiKey>"
    },
    "name": "getVMWareHosts"
  }
}

Input Schema

NameRequiredDescriptionDefault
hostYesOpManager host address (e.g., 'opmanager.example.com' or 'opmanager.example.com:8061'). Default port is 8061 (HTTPS).
nameNoName of the vCenter device - Managed Entity name as seen in the URL of device snapshot page OR 'deviceName' property value in the listDevices API response.
apiKeyYesOpManager API key for authentication

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv1.0.0

TDQS

C2.4/5.0
Behavior2/5

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

No annotations are provided, so the description must disclose behavior. It mentions the apiKey parameter but does not indicate whether the tool is read-only, what side effects exist, or any rate limits. The truncated description leaves behavioral traits unclear.

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

Conciseness2/5

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

The description is very short but incomplete—it cuts off mid-sentence. This is not effective conciseness; it suggests missing information. The structure lacks completeness.

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

Completeness2/5

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

Given no output schema, the description should explain what the tool returns. It does not mention the output format or any pagination. With only three parameters, the description is insufficient for an agent to use the tool correctly.

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?

Schema coverage is 100%, so the baseline is 3. The description partially explains the 'name' parameter but does not add meaning to 'host' or 'apiKey' beyond the schema. It adds minimal value.

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

Purpose3/5

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

The description states the tool name and category ('Manage and query network devices'), implying it retrieves VMWare hosts. However, it does not provide a specific verb or clarify what exactly the tool does, and the description is cut off, leaving ambiguity.

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?

No guidance is given on when to use this tool versus sibling tools like getVMWareDataStores or getVMWareVMs. The description lacks context about typical use cases or prerequisites.

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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