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

With no annotations provided, the description carries the full burden of behavioral disclosure. It adds 'Browser-based tool', which hints at client-side processing, but does not explain other behavioral traits such as file handling, limitations, or reversibility. The description is too sparse to provide meaningful transparency.

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 a single, compact phrase that conveys the essential information with no wasted words. It is appropriately concise for a simple tool, earning a perfect score for 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?

Given the tool's low complexity (zero parameters, no output schema), the description provides the core purpose and a useful context signal ('Browser-based'). It does not detail the interaction model or limitations, but for a simple tool this is nearly complete. A small gap remains around expected user experience.

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 parameters, which sets a baseline of 4. The description adds no parameter-specific details, but none are needed since there are no parameters. The baseline applies without penalty.

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 clearly states the tool's function: 'PDFページ順序を変更' (change PDF page order). This specific verb+resource combination distinguishes it from sibling PDF tools like pdf-rotate, pdf-split, and pdf-remove-pages, making the purpose unambiguous.

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 usage for reordering PDF pages but does not explicitly state when to use it over alternatives or mention any exclusions. The 'Browser-based tool' note offers minimal context, but there is no direct comparison to sibling tools.

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