kiota_download

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

No annotations are present, so the description must carry the behavioral burden. It adds 'Validates the downloaded specification,' which is a non-obvious behavior, but it does not disclose side effects such as file overwriting, the effect of cleanOutput, or failure handling. This is partial 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?

Two short sentences front-load the core action and add one behavioral detail. No redundant words or irrelevant information, making it highly concise and well-structured.

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?

The tool is simple (3 parameters, no output schema). The description covers the primary action and validation behavior. Combined with the schema's parameter descriptions, it's reasonably complete, though it could mention overwrite behavior or destination directory handling for full completeness.

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 input schema already describes all three parameters with 100% coverage, so the description doesn't need to add param details. The description adds no extra parameter semantics beyond the schema, but that's acceptable given the baseline.

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 'Download an OpenAPI specification from a URL to a local file,' providing a specific verb, resource, and destination. This distinguishes it from sibling tools (search, client operations), making its purpose immediately clear.

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 implies the tool is for fetching an OpenAPI spec before client generation, but it does not explicitly state when to use it relative to other tools or any prerequisites. No exclusions or alternative guidance is provided, so it relies on implied usage.

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