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

No annotations are provided, so the description must carry the behavioral burden. It usefully discloses the returned fields, but it does not explicitly state that the operation is read-only, what happens if the plan is not found, or any permission requirements.

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?

The description is a single compact sentence fragment that front-loads the resource and then lists returned fields efficiently. It wastes little space, though the fragment format lacks an explicit verb.

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?

With no output schema, the field enumeration is valuable and covers the likely return shape. However, for a get tool with no annotations and an undocumented required parameter, the description leaves gaps around how to invoke it and what behavioral guarantees exist.

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?

The schema has 0% description coverage for the single required plan_id parameter, and the description never mentions it. The parameter name is fairly self-explanatory, but the description adds no semantics about where the ID comes from or its expected format.

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?

The description identifies a single maintenance plan and enumerates the specific fields returned, so the resource and scope are clear. It distinguishes itself from a list operation via 'One maintenance plan,' but it does not explicitly use a retrieval verb or name the sibling list tool.

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?

There is no explicit guidance on when to use this tool versus maintenance_listPlans or the mutation siblings. The singular phrasing implies fetching one plan, but the description does not state prerequisites or how to obtain the required plan_id.

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