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

No annotations are provided, so the description carries the full burden of behavioral disclosure. It describes content and intent but does not state whether the tool is read-only, what it returns, whether results can be empty, or any side effects. '一覧' is the only subtle hint that it returns a list.

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?

The description is three short sentences, each adding information: contents, the 'not left blank' property, and intended use. The brief metaphor '口' is slightly unusual, but the overall description is tightly scoped and not bloated.

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 zero-parameter tool, it is mostly sufficient: an agent can infer a read-only list and invoke it without arguments. However, with no output schema and no explicit return format, the exact shape of list items is unclear, and the relationship to sibling tools like jhnrd_gaps is not addressed.

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 input schema has zero properties and additionalProperties is false, so there are no parameters to document. The 0-parameter baseline of 4 applies, and the description adds nothing needed for parameters.

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 opens with '原文で確認できていない要件の一覧...' which identifies a concrete resource (unconfirmed requirements) and the content (list plus reasons). The phrase '弱いところを、先に見るための口' conveys its role as a quick-look tool. It is distinguishable from siblings by focusing on 'unconfirmed' requirements, though it lacks an explicit action verb such as 'returns'.

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 final clause '先に見るための口' gives an implied use case: start here to find the database's weak points. However, it gives no explicit guidance on when to choose this over overlapping siblings like jhnrd_gaps or jhnrd_conflicts, and no exclusions or alternative conditions are stated.

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