Configurar webhook de abertura de contas

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

Annotations indicate destructiveHint=true, and the description mentions create or update, which implies potential modification. However, it does not detail what happens to existing configurations, whether the operation is idempotent, or any side effects. The description adds some context but not enough for full transparency.

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, front-loaded with purpose and followed by a usage hint. Every sentence adds value with no unnecessary words. Extremely concise.

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 covers the basic purpose and a key prerequisite, but it omits details about the output schema (which exists) and does not explain the two body alternatives. For a simple create/update tool, it is mostly complete but could provide more context on parameter structure.

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?

With 100% schema coverage, the baseline is 3. The description does not explain the two alternatives in the body schema (anyOf), nor does it add meaning beyond what the schema already provides. The schema itself has some confusing descriptions (e.g., 'not' fields), but the description does not compensate.

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 creates or updates a webhook configuration for account opening events. However, it does not explicitly differentiate from similar sibling tools like pix_config_webhook or pay_config_webhook, which could confuse the agent when selecting the correct tool.

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 a prerequisite ('após preparar o endpoint com a segurança exigida') and a use case ('para acompanhar o onboarding'), but it does not specify when not to use this tool or mention alternatives. The guidance is implied but lacks explicit exclusions.

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