Skip to main content
Glama

harvester_volume_list

Destructive

List PersistentVolumeClaims in a Harvester cluster, displaying size and health for Longhorn-backed volumes.

Instructions

List PersistentVolumeClaims (Longhorn-backed volumes) with size and health

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
limitNoMax items (default: 100)
formatNoOutput format: json, table (default: json)
clusterYesHarvester cluster ID
continueNoPagination token from previous response (for next page)
namespaceNoNamespace (empty = all)
Behavior1/5

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

The description claims a read-only list operation, but annotations set readOnlyHint=false and destructiveHint=true, implying potential write or destructive behavior. This contradiction is severe, and the description adds no behavioral context beyond the misleading annotations.

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 sentence that concisely conveys the action, resource, and key output fields. It is front-loaded and contains no redundant information.

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?

The description lacks details on pagination behavior (e.g., how 'continue' token works), default limits, error handling, or interpretation of size and health. The contradiction with annotations further reduces 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 for all 5 parameters, so the description adds no additional meaning beyond what the schema already provides. Baseline 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 tool lists PersistentVolumeClaims (Longhorn-backed volumes) with size and health, precisely specifying the resource and key output fields, distinguishing it from sibling tools that list other resources.

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 usage guidelines are provided; the description does not indicate when to use this tool over alternatives, such as other list tools for different resources, nor any prerequisites or conditions for use.

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

Install Server

Other Tools

Latest Blog Posts

MCP directory API

We provide all the information about MCP servers via our MCP API.

curl -X GET 'https://glama.ai/api/mcp/v1/servers/mrostamii/rancher-mcp-server'

If you have feedback or need assistance with the MCP directory API, please join our Discord server