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juandvasquezp

hcloud-mcp-server

hcloud_list_security_groups

List security groups in a specified region to view and manage firewall rules and network access controls.

Instructions

List security groups

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
regionYesRegion
limitNoMax results
Behavior2/5

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

No annotations exist, and the description omits behavioral details like read-only nature, pagination, or output structure. The agent cannot infer safety or performance characteristics.

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?

The description is extremely concise (three words) but sacrifices informativeness. While front-loaded, it does not earn its place by adding value beyond the tool name.

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?

Given the absence of output schema and the existence of related sibling tools, the description lacks contextual completeness. It does not explain the nature of the returned data or differentiate from neighboring tools.

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% coverage with descriptions for both parameters (region and limit). The description adds no additional meaning beyond what the schema provides, meeting the baseline for coverage.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose3/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description 'List security groups' clearly states the verb and resource, matching the tool name. However, it does not differentiate from sibling tools like 'hcloud_list_security_group_rules' or 'hcloud_show_security_group', leaving ambiguity about scope.

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 fails to indicate when to use this tool versus alternatives, such as listing security group rules or showing a specific security group.

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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