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

Annotations already declare readOnlyHint=true, destructiveHint=false, and openWorldHint=true, so the safety and external-call profile is covered. The description adds that the call refreshes live data from Hetzner, which is useful context, but '[scope: read]' merely restates the annotation and nothing is said about latency, failure modes, or what the returned status contains.

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

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

A single short sentence with the action front-loaded and no filler. The trailing '[scope: read]' tag is redundant with the readOnlyHint annotation and is the only wasted token.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

For a simple one-parameter read tool with full annotation coverage, the definition is adequate to invoke correctly. It is thin on what 'status' actually returns, which matters somewhat since there is no output schema to fall back on.

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

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

Schema description coverage is 100% and the single project_id parameter is documented in the schema, including a pointer to cloudhosting_list_projects. The description adds no further meaning about the parameter, so the baseline 3 applies.

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

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

States a specific verb pair (refresh and return) and resource (server status from Hetzner), which is clear enough to act on. It does not explicitly differentiate itself from the sibling cloudhosting_get_hetzner_status, and 'server status' is slightly at odds with the project-scoped parameter, leaving a small ambiguity.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Does the description explain when to use this tool, when not to, or what alternatives exist?

The word 'Refresh' implies this is the tool to call when live/current status is needed rather than cached data, which is an implicit usage cue. However, there is no explicit when-to-use guidance, no exclusions, and no reference to the closely named sibling cloudhosting_get_hetzner_status.

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