xlsx-to-markdown

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

With no annotations provided, the description carries full burden for behavioral disclosure. It describes the two input methods (url vs filepath) and mentions the prerequisite for local files (upload first), which adds useful context. However, it doesn't disclose potential limitations like file size constraints, conversion time, error conditions, or output format details beyond 'markdown'.

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 efficiently structured in three sentences: purpose statement, parameter usage guidance, and prerequisite instruction. Every sentence earns its place by providing essential information without redundancy. It's appropriately sized and front-loaded with the core functionality.

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 conversion tool with 2 parameters, 100% schema coverage, but no annotations or output schema, the description provides good context about usage scenarios and prerequisites. It could be more complete by mentioning what the markdown output looks like (tables, formatting) or potential limitations, but covers the essential operational context well.

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 100%, so the schema already documents both parameters thoroughly. The description adds marginal value by reinforcing the url/filepath distinction and mentioning the upload endpoint prerequisite, but doesn't provide additional syntax, format, or constraint details beyond what's in the schema descriptions.

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 specific action ('Convert an XLSX file to markdown') and distinguishes it from siblings by focusing on XLSX format conversion, unlike other tools that handle audio, PDF, DOCX, etc. It provides both the verb ('Convert') and resource ('XLSX file') with clear output format ('markdown').

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 explicitly provides when-to-use guidance: 'Use 'url' for online XLSX files, or 'filepath' only if the file exists on the server.' It also offers an alternative for local files: 'For local files, upload them first via /upload endpoint.' This clearly distinguishes between remote and server-side file handling scenarios.

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