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

No annotations exist, and the description discloses no behavior: no mention of receiving an image, processing receipts, output format, language support, or side effects. Only a price is stated.

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 extremely short but this is under-specification, not effective conciseness. It front-loads a price instead of a functional summary.

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?

With no annotations, no output schema, and many OCR siblings, the description needed to explain input requirements and expected behavior. It provides only a name and pay-per-use cost, so an agent cannot reliably select or invoke it.

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 coverage is 100% (one required 'input' string), so baseline is 3. However, the description adds no meaning beyond the schema, and the schema's 'entrada' label is essentially uninformative.

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 only repeats the tool name and adds pricing; it never states a verb or resource (e.g., extract/OCR receipts). The name implies the function, but the description itself is a tautology.

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?

There is no guidance on when to use this tool versus siblings like ocr-receipts, ocr-receipts-biz, ocr-invoices, or ocr. No when-to-use, exclusions, or alternatives.

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