excel_add_worksheet

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 implies a write operation ('Add'), but does not specify permissions needed, whether the action is reversible, or any side effects (e.g., if adding duplicates is allowed). For a mutation tool with zero annotation coverage, this lack of detail is a significant gap.

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, clear sentence with no wasted words, making it highly concise and front-loaded. It efficiently communicates the core action without unnecessary elaboration, earning full marks for brevity and 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 complexity (a write operation with 1 parameter), lack of annotations, no output schema, and low schema coverage, the description is incomplete. It omits critical details like parameter meaning, behavioral traits, and usage context, making it inadequate for safe and effective tool invocation by an AI agent.

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 1 parameter with 0% description coverage, and the description does not mention the 'name' parameter at all. It fails to explain what the parameter represents (e.g., worksheet name), any constraints (e.g., length, uniqueness), or default behavior. With low schema coverage, the description does not compensate, leaving the parameter undocumented.

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 action ('Add') and resource ('new worksheet to the current workbook'), making the purpose specific and understandable. However, it does not distinguish this tool from sibling tools like 'excel_create_workbook' or 'excel_delete_worksheet', which limits differentiation in a server with many Excel-related tools.

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 provides no guidance on when to use this tool versus alternatives, such as 'excel_create_workbook' for creating a new workbook or 'excel_write_worksheet' for modifying existing worksheets. There is no mention of prerequisites, like requiring an open workbook, or exclusions, which leaves usage context unclear.

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