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

No annotations are provided, so the description carries the behavioral burden. It adds useful context by noting it is a browser-based tool, implying client-side processing without server upload. However, it does not disclose other potential behaviors like file size limits, formatting preservation, or output handling. It provides some transparency but not comprehensive detail.

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 sentence that front-loads the main action. Every word earns its place, and it avoids redundancy with the title while adding the browser-based detail.

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?

The tool is simple with no parameters or output schema. The description covers the core function and execution context. It could potentially mention return value or edge cases, but the low complexity and clarity make it reasonably complete.

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, making schema coverage 100% vacuously. With no parameters to document, the baseline is 4. The description does not need to add parameter info, and it does not detract by doing so.

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 explicitly states 'DOCXをPDFに変換' (Convert DOCX to PDF), providing a specific verb and resource. It clearly distinguishes from sibling tools like pdf-to-word or image-to-pdf, which handle different conversions. The addition of 'Browser-based tool' further clarifies the context.

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 by stating it converts DOCX to PDF, but does not explicitly discuss when to use it over alternatives or when not to use it. No exclusions or alternative tool references are provided. The usage is understandable from context but not explicitly guided.

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