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mpandudc

Proxmox Homelab FastMCP

by mpandudc

Lxc Snapshot Create

lxc_snapshot_create

Create a point-in-time snapshot of an LXC container before deployments or maintenance, enabling quick rollback if issues occur.

Instructions

Create a point-in-time snapshot of an LXC before deployments or maintenance.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
vmidYes
snapnameYes
descriptionNo

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault

No arguments

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv0.1.0

TDQS

B3.2/5.0
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 of behavioral disclosure. It only states the action ('Create a point-in-time snapshot') without revealing implications like disk usage, reversibility, or effect on the running container. This is a significant gap for a mutation tool.

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, front-loaded sentence with no filler words. Every part contributes to the core purpose and usage timing.

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?

For a tool with 3 parameters, no parameter descriptions, and no annotations, the description is too sparse. It does not explain the required parameters' semantics or operational caveats, leaving the agent to guess critical details needed for correct invocation.

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

Parameters2/5

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

Schema description coverage is 0%, and the description does not explain the meaning of vmid, snapname, or description beyond implying the resource is an LXC. It fails to compensate for the complete lack of parameter documentation in the schema.

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 states a specific verb and resource ('Create a point-in-time snapshot of an LXC'), which is clear and distinct from sibling tools. However, it does not explicitly name or differentiate from alternatives, so it stops short of a 5.

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

Usage Guidelines4/5

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

The phrase 'before deployments or maintenance' provides a clear, explicit usage context. It does not mention when not to use it or alternative tools, but the context is sufficient for an agent to infer appropriate timing.

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