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

Annotations already declare readOnlyHint=false, idempotentHint=false, and destructiveHint=false. The description adds the explicit [write, altera dados] tag and the PUT method, reinforcing the mutating nature without contradicting the annotations, but it provides no further behavioral context such as what data changes or whether the settlement is reversible.

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 a single compact sentence with tags, front-loading the action before the endpoint and write-nature tag. It contains no filler, though the [write, altera dados] tag is somewhat redundant with the annotations.

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?

For a mutating tool with three undocumented generic parameters and no output schema, this description is too thin. It is missing how to identify the cobrança, which fields are required, the effects of settlement, and how it differs from the many cobranca_* sibling operations.

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 0%, and the three parameters (body, query, account) are generic undecorated strings. The description offers zero parameter guidance, so an agent cannot know what payload identifies the charge to be liquidated. With 0% coverage, the description was obligated to compensate and did not.

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 states a specific verb+resource ('Liquidar uma cobrança') plus the HTTP endpoint (PUT /cobranca/liquidar) and domain category ('Receitas'). This makes it distinguishable from the many cobranca siblings (create, update, excluir, estornar, desinvalidar), though it does not explicitly name any alternative.

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?

No guidance is given on when to use this tool versus alternatives. It does not state that liquidar marks a charge as settled, nor contrast it with related operations like estornar (reverse) or desinvalidar, and no exclusions or prerequisites are mentioned.

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