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

Annotations already declare readOnlyHint=true, destructiveHint=false, and openWorldHint=false, so the safety profile is covered. The description adds useful context beyond them: it returns the FULL page body and should be used as the accuracy authority before answering on critical facts.

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 front-loaded sentences that each carry a purpose: what it returns, what id accepts, and when accuracy demands it. The full site name in quotes is somewhat verbose but not wasteful enough to hurt the structure.

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?

An output schema exists, so return values need not be explained, and the description covers the input source and the usage context. The main gap is that it never clarifies its relationship to the closely related get_page sibling, which leaves a real ambiguity unresolved.

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%, so the schema already documents the single id parameter including that a URL or path (even in Japanese) is acceptable. The description repeats the same information (id from search results, or URL/path) without adding format or syntax detail, so it meets the baseline 3 rather than exceeding it.

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+resource: it returns the full body text of the loaded page on pono-pono.co.jp. It is clear what the tool does, but it never distinguishes itself from the near-identical sibling get_page, so an agent cannot tell the two apart from the description alone.

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 gives concrete when-to-use guidance: for pricing, dates, conditions, and terms, verify the body text with this tool before answering. However, it names no alternative (e.g. get_page) and states no when-not-to-use condition, so the routing against siblings is left implicit.

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