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

Annotations already mark the tool as read-only and non-destructive, so the safety profile is covered. The description adds genuine value beyond annotations by disclosing the staleness behavior ('読み込んだ時点のもので、最新のリリースがすべて入っているとは限りません'), which is important for an agent to interpret results correctly.

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 sentences with the core purpose front-loaded, followed by useful taxonomy detail and the staleness caveat. Each sentence earns its place with minimal waste; slightly verbose URL explanation but informative.

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?

For a read-only list tool with no output schema, it covers the return value (titles and URLs) and the staleness caveat well. However, the limit/offset parameters are the agent's only control over the listing and are entirely undocumented, leaving pagination behavior unclear.

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 0%, and the description never mentions limit or offset, leaving both pagination parameters entirely unexplained. With two parameters and no schema descriptions, the description should compensate but adds nothing about parameter meaning or usage.

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 states a specific verb and resource: 'Returns a list (titles and URLs) of pages loaded into Prenica.' It also differentiates from siblings by detailing the URL taxonomy (/news/, /type/, /about/), so an agent can distinguish it from search_pages, fetch, and get_page without opening schemas.

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 description implies the use case (enumerate all loaded pages) and adds a useful caveat that the list is as-of load time and may not contain the latest releases. However, it never explicitly states when to prefer this over siblings such as search_pages or get_page, leaving selection to inference.

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