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

With no annotations, the description carries the full burden, and it does disclose two useful traits: read-only ('Reads only') and result ordering ('newest first'). It says nothing about pagination, result limits, or account/permission scoping, which are the remaining behavioral questions for a list endpoint.

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 dense sentence that front-loads the resource, then ordering, then fields, then the read-only note. Nothing is redundant, though the trailing field list makes it slightly list-like rather than prose.

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?

Because there is no output schema, the description's field enumeration does real work and covers return values adequately. However, it leaves out pagination behavior, result caps, and how the nested project/scan relationship is shaped, which matter for an unpaginated-looking list endpoint.

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 tool takes zero parameters, so the schema baseline does not apply and 4 is the default. The description compensates usefully by enumerating the output fields in lieu of an output 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?

The description names the resource precisely — 'the website projects of this account with their scans' — and enumerates the returned fields (id, site, status, pages analysed, bytes saved), so an agent knows exactly what it will get back. It is distinguishable from the singular get_website_scan and from list_website_pages/list_website_assets by the project+scans framing, though the distinction is implicit rather than stated.

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 choose this over get_website_scan (single scan detail) or list_website_pages/list_website_assets. The 'newest first' overview framing hints at a listing use case, but no condition or exclusion is stated.

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