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dwin-gharibi

ArvanCloud MCP Server

by dwin-gharibi

arvan_attach_security_group_to_server

Attach a security group to a server to define network access rules and protect the server from unwanted traffic.

Instructions

Attach a security group to a server.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
server_idYes
security_group_idYes
regionNo
Behavior2/5

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

The description only says 'attach' but does not disclose behavior beyond annotations. No info on idempotency, side effects, or failure cases.

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?

The description is extremely concise (one sentence) and front-loaded. Every word adds value, but it could convey more information without losing conciseness.

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?

No output schema exists, but the description does not explain return values or outcomes. For a modification tool, it lacks details on success indication, error handling, or post-attach state.

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 does not explain any parameters. The agent cannot infer the meaning or format of server_id, security_group_id, or region.

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?

The description clearly states the action (attach) and the objects (security group to a server), distinguishing it from the detach sibling. However, it does not differentiate from other attach tools like attach_floating_ip.

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 provided. It does not specify when to use this tool vs. alternatives, nor any prerequisites or conditions.

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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