get_workbook_overview

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

No annotations provided, so description carries full burden. It discloses what the tool returns (file metadata, sheet list, dimensions, image count, merged cells) and that it works with .xlsx files. No side effects mentioned, but for a read-only overview tool this is adequate.

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?

Four sentences, front-loaded with purpose, then details and usage guidance. No wasted words; 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?

For a simple overview tool with one parameter, an existing output schema, and sibling tools, the description is complete. It lists return content and usage context, leaving no critical gaps.

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 single parameter file_path is described as 'Absolute path to the .xlsx file', adding format and path type information beyond the schema. Schema coverage is 0%, so description compensates well.

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 it returns a quick summary overview of an Excel workbook, listing specific content (file metadata, sheet list, image count, merged cells). It distinguishes from deeper analysis tools by implying this is for fast assessment before deeper work.

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?

Explicitly says 'Use this for a fast assessment before deeper analysis', providing clear when-to-use context. Does not explicitly list when not to use or alternatives, but sibling tools are present for differentiation.

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