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webmin-mcp-server

webmin-mcp-server

by gjenkins20
OverviewSchemaSourceRelated ServersDiscussionsAdmin
Python
Remote

get_user_quota

Retrieve disk quota limits and current usage for a specific user on a given filesystem to monitor storage allocation.

Instructions

Get quota limits and usage for a specific user on a filesystem.

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": {
      "username": "<username>",
      "filesystem": "<filesystem>"
    },
    "name": "get_user_quota"
  }
}

Input Schema

NameRequiredDescriptionDefault
serverNoServer alias (e.g., 'pi1', 'web-server'). Uses default server if not specified.
usernameYesUsername to get quota for
filesystemYesMount point of the filesystem

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv0.1.0

TDQS

B3.3/5.0
Behavior2/5

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

No annotations are provided, so the description must carry the full burden. It states the tool retrieves quota limits and usage, implying a read operation, but does not disclose potential requirements or behaviors (e.g., permission needed, what exactly 'usage' includes).

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, concise sentence. It is front-loaded with the essential action and resource, with no wasted 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?

Given the tool's simplicity and complete schema, the description is minimally adequate. However, it lacks information about the response format (e.g., what fields are returned) and any prerequisites, which would improve completeness.

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 has 100% description coverage, so parameters are well-documented. The description adds no additional meaning beyond what the schema provides, so baseline score of 3 is appropriate.

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?

The description clearly states the action (get) and resource (quota limits and usage for a specific user on a filesystem). It distinguishes itself from sibling tools like 'get_group_quota' and 'set_user_quota' by specifying a single user and read-only nature.

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 such as 'list_user_quotas' or 'get_group_quota'. Without context, an agent may select the wrong tool for listing all quotas or group quotas.

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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