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sandraschi

virtualization-mcp

storage_management

List, create, and remove storage controllers and disks, and attach disks to virtual machines.

Instructions

Comprehensive storage management portmanteau tool.

This tool consolidates all storage operations into a single interface. Use the 'action' parameter to specify which operation to perform. Different actions require different parameters.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
actionYesThe operation to perform. Must be one of: - "list_controllers": List storage controllers for a VM (requires: vm_name) - "create_controller": Create a storage controller for a VM (requires: vm_name, controller_name, controller_type) - "remove_controller": Remove a storage controller from a VM (requires: vm_name, controller_name) - "list_disks": List virtual disks for a VM (requires: vm_name) - "create_disk": Create a new virtual disk (requires: disk_name, disk_size_gb) - "attach_disk": Attach a disk to a virtual machine (requires: vm_name, disk_path)
vm_nameNoName of the virtual machine (required for list_controllers, create_controller, remove_controller, list_disks, attach_disk)
controller_nameNoName of the storage controller (required for create_controller, remove_controller)
controller_typeNoType of storage controller (required for create_controller): ide|sata|scsi|sas|usb|pcie
disk_nameNoName of the virtual disk file (required for create_disk)
disk_size_gbNoSize of the disk in GB (required for create_disk)
disk_pathNoPath to the disk file (required for attach_disk)
limitNo
offsetNo

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault

No arguments

Behavior2/5

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

The description reveals that the tool is a portmanteau (multiplexed), but with no annotations, it fails to disclose behavioral traits like destructiveness, side effects, or required permissions. For a tool with destructive actions (e.g., remove_controller), this is insufficient.

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

Conciseness3/5

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

The description is short but includes redundant listing of actions already in schema. The term 'portmanteau' adds clutter. Could be more efficient without losing clarity.

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 the tool's complexity (9 parameters, conditional dependency on action), the description is too high-level. It doesn't explain parameter relationships, conditional requirements beyond the schema, or output behavior, even though an output schema exists.

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 high (78%) and the schema already provides detailed parameter descriptions. The description adds little beyond saying to use the 'action' parameter, so it meets baseline but doesn't compensate for remaining gaps.

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 identifies the tool as a storage management portmanteau and lists operations, making it clear it handles storage tasks. However, the phrase 'portmanteau tool' is jargon and the purpose isn't stated with a single precise verb+resource.

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

Usage Guidelines3/5

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

The description implies use for any storage operation, but it doesn't explicitly state when to use vs alternatives. Since there are no sibling storage tools, no exclusions are needed, but the description could be more direct.

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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