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 that it returns the *full* body text and that accuracy-critical facts should be checked here, but it does not mention truncation, pagination, or any auth/rate considerations beyond the annotations.

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, front-loaded with the core action (returns full body text) followed by the id usage and the accuracy recommendation. Nothing is redundant, though the accuracy sentence is somewhat verbose.

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?

With an output schema present and 100% parameter coverage, the description need not explain return values, and it appropriately focuses on scope and the id argument. It is complete enough to call correctly, though it omits any distinction from the near-identical `get_page` sibling.

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 single `id` parameter is fully documented in the schema (search-result id, URL, or path, Japanese allowed). The description largely restates the same accepted forms without adding syntax or formatting detail beyond the schema, so the baseline 3 applies.

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 uses a specific verb+resource in Japanese: it returns the full body text of a page from the named site (online.instantgakushu.jp). An agent can tell it retrieves page content, but it does not differentiate itself from the sibling `get_page`, which appears to overlap, so it falls short of a 5.

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 an explicit usage condition: verify prices, dates, conditions, and terms against this body text before answering. However, it never names an alternative (e.g., when to prefer `get_page` or `search_pages`) or states when not to use it, so it lacks the routing clarity of a 5.

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