Iniciar pagamento Pix recorrente via Open Finance

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

Annotations already indicate destructiveHint=true. The description adds context about 'authorization journey' but does not elaborate on behavioral traits such as permission requirements, side effects, or error conditions beyond what annotations provide.

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 concise sentences that front-load the core action and provide a use case. No wasted words.

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 complex input schema and presence of an output schema, the description is adequate but does not explain return values, error states, or the overall workflow beyond a brief mention of 'authorization journey'.

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 description coverage is 100%, so the schema already documents parameters fully. The description adds no additional parameter-level meaning, earning the baseline score of 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 the tool initiates a series of recurring Pix payments via Open Finance ("Solicita a iniciação de uma série de pagamentos Pix recorrentes") and mentions creating an authorization journey. It distinguishes itself from listing or canceling tools, but does not explicitly differentiate from siblings.

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 gives a use case ("Use para criar a jornada de autorização de pagamentos programados") but lacks explicit guidance on when not to use the tool or mention of alternatives like of_list_recurrency_pix_payment or of_cancel_recurrency_pix.

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