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

Annotations already declare readOnly, idempotent, non-destructive behavior, so the bar is lower; the description nonetheless adds a genuinely non-obvious trait: ~1,400 near-identical city pages are hidden unless type="city", which prevents an agent from being surprised by results or bloating output. It does not mention pagination defaults or result ordering.

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 tightly written sentences, front-loaded with the core action and filters, with the important city-page caveat placed last as a qualifier. No filler.

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 paginated list tool with a fully documented schema and no output schema, the description covers filters, pagination, and the one non-obvious behavioral trap. Return shape and pagination defaults are left to the schema/annotations, which is acceptable.

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 the baseline is 3, but the description adds real meaning beyond the schema by explaining that the 'city' type value gates access to a special population of pages, which the enum alone does not convey. The lang and limit/offset params remain schema-only.

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 ('List public pages of justautomate.ai') plus its scope (public, paginated), which clearly separates it from the singular get_page sibling. It stops short of explicitly naming alternatives like search_site, so it is clear but not fully differentiated.

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?

It tells the agent the tool can be filtered by kind and language and supports pagination, implying usage, but gives no explicit 'use this instead of search_site when...' guidance or prerequisites. Usage is inferred rather than stated.

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