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

No annotations are provided, so the description carries the full behavioral burden and does not meet it. It says nothing about whether a retry consumes credits (a relevant risk given the buy_credits sibling), whether it is synchronous or queued, whether the prior failed result is discarded, or what permissions are needed.

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?

A single short sentence with the action front-loaded and the conditions grouped in a parenthesis; nothing is wasted. It is perhaps too terse for a two-required-parameter tool, but not padded.

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?

With no annotations, no output schema, and 0% schema coverage, the description should explain at minimum what the two IDs identify and what happens on retry. It leaves both parameter meaning and retry side effects unaddressed.

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 neither parameter is documented. The text only hints at an item ('item que falhou'), leaving item_id unexplained in format and diligence_id entirely unmentioned, so an agent gets no help beyond the parameter names.

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 verb phrase 'Busca a certidão de novo' makes the re-fetch/retry action explicit despite the name saying 'item' and the description saying 'certidão'. It is distinguishable from get_item and fetch_certidoes by the 'de novo' emphasis, though the noun mismatch (item vs. certidão) adds a little ambiguity.

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 parenthetical names three concrete triggering conditions: an item that failed, one that stalled ('parou num muro'), or one being renewed. That is clear context for when to invoke it, but it never states when not to use it or names a sibling alternative such as get_item or fetch_certidoes.

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