excel_create_workbook

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

No annotations are provided, so the description carries full burden. It states 'Create' implying a write/mutation operation but doesn't disclose behavioral traits like whether it overwrites existing files, requires specific permissions, returns a file reference, or has rate limits. For a creation tool with zero annotation coverage, this is a significant gap in transparency.

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, efficient sentence that front-loads the core purpose ('Create a new Excel workbook') and adds necessary scope ('with specified worksheets and data'). There is no wasted wording, and it's appropriately sized for the tool's complexity.

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 no annotations, 0% schema description coverage, no output schema, and 1 parameter with nested objects, the description is incomplete. It doesn't explain what the tool returns (e.g., a file path or workbook object), how errors are handled, or detailed parameter usage. For a creation tool with nested inputs, more context is needed.

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%, but the description adds meaningful context by mentioning 'specified worksheets and data,' which aligns with the 'worksheets' parameter in the schema. However, it doesn't explain the structure of worksheets (name, data, columns) or provide examples. With 0% coverage, the description partially compensates but leaves most parameter details 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 ('Create') and resource ('Excel workbook') with additional scope ('with specified worksheets and data'). It distinguishes from siblings like excel_add_worksheet (which adds to existing workbooks) and excel_open_file (which opens existing files). However, it doesn't explicitly contrast with all sibling tools, keeping it at 4 rather than 5.

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. It doesn't mention prerequisites (e.g., needing an existing workbook context), when not to use it, or compare it to other creation tools like create_budget_template or create_cash_flow_template. The agent must infer usage from the name alone.

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