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Glama

Attach a volume

cloud_attach_volume

Attach a Hetzner Cloud volume to a specific server by volume ID and server ID, enabling persistent block storage for that server.

Instructions

Attach a volume to a server.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
idYesVolume id.
serverYesServer id.
automountNo

Schema Changelog

Changes observed during successful MCP inspections.

  1. Addedv0.7.0

TDQS

C2.4/5.0
Behavior1/5

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

No annotations are provided, so the description carries the full behavioral burden. It does not disclose permissions, prerequisites such as volume/server state, side effects, idempotency, automount behavior, or failure modes.

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

Conciseness3/5

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

One front-loaded sentence with no wasted words. However, it is under-specified for a mutation tool rather than appropriately concise given the missing behavioral context.

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 mutation tool with no annotations, no output schema, and one undocumented parameter, the description is too thin. It never states prerequisites, side effects, or what automount does.

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?

The schema documents id and server (67% coverage), but the description adds no parameter meaning. The automount parameter is undocumented in both the schema and the description.

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?

States a specific verb ('attach') and resource ('volume') with a target ('server'), clearly distinct from detach/create/delete/list siblings. However, it provides no explicit sibling comparison or scope conditions.

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 when-to-use guidance, prerequisites, or alternatives are given. The agent must infer that this is for attaching an existing volume to a server, likely after creation and before detach.

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