create_excel_file

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

With no annotations, the description carries full transparency burden. It discloses key behaviors: file creation, overwrite control, sheet naming defaults, and the requirement for the parent directory to exist. It lacks details on error handling or atomicity but is otherwise solid.

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 concise with a clear opening sentence followed by bullet-like parameter descriptions. No extraneous information, and every sentence adds value.

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 three parameters and an existing output schema (though not shown), the description covers the necessary details for correct usage. It explains parameters, return value, and file path constraints. Minor gaps include no mention of error scenarios or non-destructive nature.

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 0%, requiring the description to explain all parameters. It does so effectively: file_path is absolute with directory requirement, sheet_names defaults to 'Sheet1', and overwrite defaults to false. This adds essential meaning beyond the schema.

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 'Create a new empty .xlsx workbook,' which is a specific verb and resource. It effectively distinguishes from sibling tools that read, modify, or add sheets, making selection straightforward.

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?

No guidance is provided on when to use this tool versus its siblings (e.g., add_excel_sheet for adding sheets to existing files). The description focuses only on parameters without advising on appropriate context.

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