Gerar QR Code de uma location Pix

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

Annotations already declare the tool as readOnly, openWorld, and idempotent. The description adds minor behavioral detail (generates both text and image, prerequisite step), but it does not provide significant new behavioral traits beyond what annotations cover. There is no contradiction with annotations.

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 two sentences, front-loaded with the action and resource, with every word earning its place. No unnecessary details.

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?

Given the tool's moderate complexity and the presence of an output schema, the description adequately covers the main purpose, usage timing, and outputs. It could mention prerequisites like the location being active, but it is sufficient for an agent to select and invoke correctly.

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% with the parameter 'id' described as 'Identificador do recurso.' The description adds no extra meaning or usage guidance for the parameter, so it meets the baseline expectation but does not exceed it.

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 verb 'Gera' and identifies the exact resources: 'Pix Copia e Cola e a imagem do QR Code'. It specifies the context 'para uma location existente', which implicitly distinguishes it from static QR generation tools like pix_generate_static_qr_code.

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 explicit usage context: 'Use depois de associar a location à cobrança que o pagador deverá acessar.' This tells the agent when to use the tool, but it does not mention when not to use it or name alternative tools for different scenarios, such as pix_generate_static_qr_code.

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