create_sheet

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

No annotations are provided, so the description carries full burden for behavioral disclosure. It only states the operation and return value, but does not mention side effects, required permissions, reversibility, or error conditions. This is a significant gap for a mutation tool.

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 and well-structured, with a clear first line, a list of arguments, and a return value. Every sentence contributes necessary information without redundancy.

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?

For a simple creation tool, the description covers the essential information: what it does, required parameters, and return value. It could mention prerequisites (e.g., spreadsheet must exist) or error behavior, but the simplicity of the tool makes this description 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 schema has 0% description coverage, so the description must compensate. It provides one-line explanations for each parameter (e.g., 'The ID of the spreadsheet'), adding basic meaning beyond the schema. However, it lacks format details, examples, or constraints, so it only minimally compensates.

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 'Creates a new sheet within an existing spreadsheet,' which is a specific verb+resource. It distinguishes itself from siblings like create_spreadsheet (new spreadsheet) and modify_sheet_values (modifies values).

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 phrase 'within an existing spreadsheet' clearly implies the tool requires an existing spreadsheet, providing context for when to use it. It doesn't explicitly mention alternatives or exclusions, but the context is clear enough for correct tool selection.

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