aya_arquivo_encoding_validar

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

With no annotations provided, the description carries the behavioral burden, and it does so meaningfully: it discloses the acceptance rule, explicit rejection cases, and the mojibake-signaling behavior. It does not state the exact return shape or whether rejection is an exception versus a result, but the core behavioral contract is clear.

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 one short, front-loaded sentence that packs the essential validation rules into every word. There is no padding, repetition, or irrelevant context.

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 single-parameter validation tool with no output schema, the core purpose and rules are present. However, the agent is left without information about what a rejection or success looks like (boolean, error, report), and there is no usage or alternative guidance. The description is workable but not fully complete.

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 description never mentions the 'caminho' parameter. The parameter name and tool name imply it is a file path, but the description adds no concrete meaning about path format, file existence, or whether the path must point to a file versus content.

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 and resource: it validates a file encoding. It is precise about the acceptance criterion (UTF-8 without BOM), rejection criteria (UTF-16 and U+FFFD), and an additional outcome (flagging possible mojibake). This clearly distinguishes it from the many other validation tools in the sibling list.

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 about when to use this tool versus alternatives, nor are any prerequisites or exclusions mentioned. The intended use can be inferred from the verb 'Valida', but an agent gets no explicit help choosing among the many validation-oriented siblings.

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