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

Adds behavior beyond the annotations: the auth requirement (read/write API key) and the return payload (token and URL). It does not contradict destructiveHint=true and does not need to restate it, but gives no detail on ordering side effects or failure modes.

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?

Three short sentences, front-loaded with the action, then return value, then prerequisite. The trailing REST mapping is marginal but costs almost nothing.

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, stating the returned token and URL is exactly the right compensation, and the auth prerequisite is covered. Only minor gaps remain (e.g., visibility semantics are left entirely to the schema).

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%, so all five parameters are already documented, including display order and the token pattern. The description's 'in order' clue largely duplicates the checks parameter description, so 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?

Specific verb (Create) plus resource (status page) with a distinguishing scope detail (the given checks, in order). It is clearly separable from updown_update_status_page and updown_list_status_pages without opening a schema.

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?

States a prerequisite ('Requires the read/write API key') but gives no when/when-not guidance or named alternatives. Usage context is only implied by the verb (new page vs. updating an existing one).

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