create_worksheet

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

With no annotations, the description carries the full burden of behavioral disclosure. It only states it creates a worksheet, but omits any side effects, constraints (e.g., duplicate sheet names), or return value details. The existence of an output schema is not utilized in the description.

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 very short and front-loaded with the purpose. The args are listed concisely. While there is some redundancy (the 'Args' section repeats parameter names), it is still efficient and easily parsed.

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 simplicity and the presence of an output schema (not shown but known), the description is adequate but not fully complete. It does not cover error cases (e.g., invalid session, duplicate sheet name) or confirm what is returned, leaving some gaps for an 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 schema has 0% description coverage, but the description adds brief explanations for both parameters: session_id is 'Session ID from open_workbook' and sheet_name is 'Name of the new worksheet'. This adds some value beyond the schema's type and title, though it remains minimal.

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 creates a new worksheet in a workbook, which is distinct from sibling tools like rename_worksheet or delete_worksheet. However, it does not explicitly differentiate from create_workbook, but contextually the session_id parameter implies an existing workbook.

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 on when to use this tool versus alternatives is provided. The description mentions session_id from open_workbook implicitly, but does not state prerequisites or scenarios where this tool should be used or avoided.

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