validate_file

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

With no annotations, the description is the sole source of behavioral info. It only states the action ('validate file format and convertibility') without disclosing what happens on invalid files, whether any side effects occur, or supported input constraints. This is a minimal disclosure.

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 with no wasted words. It is front-loaded and easy to parse, though it lacks any additional structure. For such a brief description, conciseness is strong.

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?

Despite the tool being simple (one parameter) and having an output schema, the description omits essential context such as accepted file formats, validation criteria, and error behavior. Without annotations or richer description, the tool is not adequately specified 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 for its single parameter, and the description does not mention file_path or its expected format. The parameter name is self-explanatory, but the description fails to compensate for the schema gap, leaving semantics under-specified.

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 uses a specific verb ('validate') and identifies the resource ('file format and convertibility'), which distinguishes it from sibling conversion tools like pdf_to_markdown and markdown_to_pdf. However, it doesn't specify what 'valid' means or what formats are involved, so it's not fully precise.

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, no prerequisites, exclusions, or example scenarios. Usage context must be inferred from the tool name and sibling list.

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