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ay-garg

OpenShift 4 MCP Server

create_volume_snapshot

Creates a VolumeSnapshot from a PersistentVolumeClaim (PVC) to enable backup and recovery.

Instructions

Create a VolumeSnapshot from a PersistentVolumeClaim.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
nameYes
clusterNo
pvc_nameYes
namespaceYes
snapshot_classNo

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
resultYes

Schema Changelog

Changes observed during successful MCP inspections.

  1. Addedv0.1.1

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 carries the full burden. It discloses that the tool creates a snapshot, but it does not mention required permissions, side effects, prerequisites about the PVC or snapshot class, or whether the operation is reversible.

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 with no filler, front-loading the action and object. It earns its place by clearly stating the tool's purpose, though it may be terse at the expense of behavioral detail.

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 create operation with five parameters CommonKebab and no annotation coverage, the description is too sparse. It does not address prerequisites, parameter semantics, or behavioral implications, leaving an agent with insufficient context to invoke the tool confidently beyond basic intent.

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 only clarifies that the snapshot is created from a PersistentVolumeClaim, which maps to pvc_name. It provides no meaning for name, namespace, snapshot_class, or cluster, so it only minimally compensates for the missing schema descriptions.

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 states a specific verb ('Create') and resource ('VolumeSnapshot') along with the source ('PersistentVolumeClaim'). This clearly differentiates it from siblings like create_vm_snapshot and list_volume_snapshots without needing to inspect schemas.

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 its use case: creating a snapshot from a PVC. However, it provides no explicit when-to-use guidance, no exclusions, and does not mention alternatives such as listing snapshots or creating VM snapshots.

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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