filoo_usage

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

No annotations, but description details the returned values and implies a read-only operation. No hidden destructive effects or authentication requirements mentioned, acceptable for a simple usage query.

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 sentences with no filler; first states purpose, second gives usage guidance. 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?

Tool has no parameters, no output schema, no annotations. Description fully covers what the tool returns and when to use it, making it complete for a simple usage check.

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?

Tool has zero parameters, so schema coverage is 100%. Description adds value by explaining the output metrics, which is more than baseline 3.

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 retrieves today's usage versus quotas, listing specific metrics. It distinguishes from sibling tools which focus on individual links or user info.

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 before bulk-creating links to avoid hitting limits,' providing clear context and when to use. Lacks explicit exclusions but sufficient for the tool's simplicity.

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