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

Annotations already cover the safety profile (readOnlyHint=true, destructiveHint=false, openWorldHint=true). The description adds two genuinely useful behavioral facts: results include messages and affected components, and the underlying endpoint shape. It omits pagination behavior, which the schema happens to document instead.

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?

Front-loaded with the resource and scope in one tight sentence, followed by the endpoint path. Efficient, but the state definitions are redundant with the schema and consume space that could have carried sibling routing.

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 description usefully discloses what a result contains (maintenance event, messages, affected components), and annotations cover safety. What remains unspecified is response sizing/pagination and error behavior, which is a modest gap for a read-only list tool.

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%, so page, state, and statuspage_id are already fully documented by the schema, including the paging-until-empty convention. The description only restates the enum meanings, adding no syntax or defaulting detail beyond what the schema provides, 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?

Names the resource (maintenance events), the scoping dimension (one state, with the three states enumerated), and the payload content (messages and affected components), which implicitly separates it from get_maintenance (single item) and list_maintenance_ids (ids only). It never names a sibling explicitly, so it lands at 4 rather than 5.

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?

Usage is implied by the state breakdown, but there is no explicit when-to-use guidance or 'use X instead' routing against the many sibling list/get tools. The state glosses ('pending = scheduled and not started') duplicate the enum description in the schema verbatim, so they add no routing information.

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