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

Annotations already declare this is a non-read-only, non-destructive, non-idempotent, closed-world write, so the safety profile is covered. The description adds one genuine behavioral constraint (slug '/' ownership), but does not say what happens on duplicate slug, whether the page starts as a draft, or whether it is immediately live—significant gaps for a creation tool.

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?

Two short sentences, front-loaded with the action and resource, with the constraint second. No filler, though the second sentence could be folded in without loss.

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?

Output schema exists, so return values need not be explained, and the schema is rich on parameters. But for a write tool creating a site page, the description omits publication state (draft vs live), duplicate-slug behavior, and permission requirements—material gaps an agent would want before invoking.

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 config object enumerates supported keys extensively, so the schema carries the parameter burden. The description adds nothing about slug format, title requirements, or event_id that the schema does not already state better.

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 and resource ('Create a new page on the registration site') plus the two identifying fields. It is clearly distinguishable from update_site_page and duplicate_site_page, though it never names a sibling explicitly.

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 reserved '/' rule is an implicit routing hint toward update_site_page for the home page, and the create-vs-update distinction is obvious from the name. But there is no explicit statement of when to use this versus duplicate_site_page or update_site_page, and no prerequisites are given.

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