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

Annotations already declare destructiveHint=true and idempotentHint=true; the description adds no behavioral context such as what gets disrupted or that project_sharing only applies to the next run bakes the fact that the update is not retroactively applied. That crucial timing detail lives only in the schema, so the description contributes nothing beyond structured fields.

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 front-loaded sentence with no padding. Slightly under-specified rather than verbose, but structurally sound.

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?

An output schema and full annotation set carry much of the burden, so the tool is callable. Still, the description omits the delayed-effect behavior of project_sharing and uses a field name that doesn't match the schema, leaving avoidable ambiguity for a destructive mutation.

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 coverage is 100% and the schema already documents server_id, region, and the project_sharing semantics in detail. The description only loosely paraphrases the fields and its 'nickname' phrasing actually diverges from the schema's 'task' parameter, so it adds no meaning beyond the schema.

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 (update) and resource (server) and enumerates the affected fields, which separates it from siblings such as update_project or control_server. The one weakness is the loose field label 'nickname', which does not match the actual parameter name 'task'.

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?

No indication of when to use this versus alternatives like control_server or get_server, and no prerequisites such as needing the server_id from list_servers. The agent must infer usage entirely.

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