olx_detalhe_anuncio

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

The description reveals that the description field has HTML removed and lists all returned fields, adding detail beyond the readOnly and idempotent annotations. No contradictions are present.

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 well-structured with separate Args and Returns sections, and the purpose is front-loaded. It is not overly verbose for the detail provided.

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 description comprehensively covers input and output fields, and annotations are present. Missing error handling details but adequate for selection and invocation.

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 'url' parameter's description in the tool text ('URL completa do anúncio na OLX') adds minimal meaning beyond the schema's own description (which includes an example). Given the context signal of 0% schema coverage, this is adequate but not exceptional.

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 tool retrieves complete details of a specific OLX listing from its URL. This explicitly differentiates it from sibling tools that perform searches or work with Mercado Livre.

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 usage with a URL but does not explicitly guide when to use this tool versus alternatives like 'olx_buscar_anuncios' for searches. No exclusions or when-not-to-use are provided.

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