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vmware-skills

VMware-Monitor

list_all_networks

Read-onlyIdempotent

List VMware networks with name, attached VM count, and accessibility to resolve port-group names before checking VM NIC details via get_vm_info.

Instructions

[READ] List networks with name, attached VM count, and accessibility.

Returns the list envelope with a real total. Name, vm_count and accessible only — no VLAN, uplink or NSX overlay detail. Use this to resolve a port-group name, then get_vm_info for the NICs of one VM. NSX segments live in vmware-nsx.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
limitNoMax networks to return (None = all).
targetNovCenter/ESXi target from config (default if omitted).

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed4 schema fields changedv1.9.2
    • addedInput schema / additionalProperties
      Added value: +false
    • addedInput schema / properties / limit / description
      Added value: +"Max networks to return (None = all)."
    • addedInput schema / properties / target / description
      Added value: +"vCenter/ESXi target from config (default if omitted)."
    • changedOutput schema / (root)
      Previous value: -{
      -  "properties": {
      -    "result": {
      -      "items": {
      -        "additionalProperties": true,
      -        "type": "object"
      -      },
      -      "title": "Result",
      -      "type": "array"
      -    }
      -  },
      -  "required": [
      -    "result"
      -  ],
      -  "title": "list_all_networksOutput",
      -  "type": "object"
      -}New value: +null
  2. Addedv1.5.38

TDQS

A4.4/5.0
Behavior4/5

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

Annotations already declare readOnly, idempotent, openWorld, and non-destructive, so the safety profile is covered. The description adds genuine behavioral context beyond that: the envelope carries a real 'total', and the response deliberately omits VLAN, uplink, and NSX overlay detail, which preempts wrong assumptions about richness. It doesn't address pagination behavior, keeping it short of a 5.

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?

Three sentences, zero filler, with the read-only marker and resource leading. The scope limitation and the routing to siblings each earn their place.

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

Completeness4/5

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

With no output schema, the description carries the return-value burden and does so by naming the returned fields and the real total. It stops short of explaining ordering or pagination semantics tied to 'limit', which is the only remaining ambiguity for a two-optional-param list tool.

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 description coverage is 100%, and both parameters (limit, target) are already fully documented in the schema. The description adds no parameter-level syntax or defaulting nuance, so the baseline 3 applies.

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

Purpose5/5

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

States a specific verb and resource ('List networks') and enumerates the returned fields (name, vm_count, accessibility), plus explicitly scopes out VLAN/uplink/NSX overlay detail. An agent can distinguish this from list_all_clusters, list_all_datastores, and NSX tooling without opening any schema.

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

Usage Guidelines5/5

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

Gives an explicit use case and workflow: resolve a port-group name here, then call get_vm_info for the NICs of one VM. It also names an exclusion ('NSX segments live in vmware-nsx'), so the agent knows when not to use it and where to go instead.

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