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ay-garg

OpenShift 4 MCP Server

by ay-garg

list_pvcs

List PersistentVolumeClaims from OpenShift 4 clusters, displaying status, volume, capacity, access modes, and storage class to manage storage resources.

Instructions

List PersistentVolumeClaims with status, volume, capacity, access modes, and storage class.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
clusterNo
namespaceNo
label_selectorNo

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
resultYes
Behavior2/5

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

No annotations provided, so description must cover behavior. It only mentions return fields, not how the tool behaves (e.g., supports optional filtering by cluster, namespace, label selector; no pagination details). Basic disclosure only.

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

Conciseness4/5

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

Single sentence, front-loaded, no wasted words. Could be slightly improved by including parameter hints, but remains efficient.

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?

For a listing tool with optional filters, the description adequately states output but omits parameter context. With an output schema, return values are covered, but parameter semantics are missing. Adequate but not complete.

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

Parameters1/5

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

Schema description coverage is 0% and the description adds no information about the parameters (cluster, namespace, label_selector). The agent must infer their meaning from names alone.

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 and specifies the fields returned (status, volume, capacity, access modes, storage class). It distinguishes from sibling tools like 'get_pvc' or 'list_pvs' by targeting PVCs with a list operation.

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?

No explicit usage guidance or alternatives mentioned. The description implies a straightforward listing operation, but with many sibling tools, it would benefit from noting when to use this vs get_pvc or list_pvs.

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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