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

The description explicitly warns '⚠️ Altera dados de PRODUÇÃO (o Bsoft não tem homologação)', which is a critical behavioral trait not captured in annotations (which only mark readOnlyHint false). It also explains that update requires an id, nested resources require parent_id, and bulk execution via ids/parent_ids, adding transparency beyond the schema. Minor detraction is the irrelevant reference to create_lote, but the production warning and requirements make it strong.

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 moderately concise with a front-loaded warning and clear instructions. It includes a warning, parameter requirements, and bulk support note, but some content (like create_lote details) is irrelevant to this specific tool and adds noise. Overall, it is efficient and well-structured, earning a 4.

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 key operational aspects: production impact, id requirement for update, nested resources needing parent_id, and bulk support. However, it lacks details on return values (no output schema), what body should contain for each resource type, and does not explain the 'account' parameter. The conflation of multiple CRUD operations also reduces completeness for the update-specific tool.

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 0% schema description coverage, the description carries the burden of explaining parameters. It clarifies id (required for update), parent_id (for nested resources), body (JSON), and ids/parent_ids (for batch). However, it introduces 'action' as a parameter that is not in the schema, potentially confusing the agent, and fails to explain the 'account' parameter. So it partially compensates but has notable gaps.

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 says 'Manutenção / Frota no Bsoft TMS (escrita: cria/atualiza/remove)' which is generic for all write operations, but the tool name and '[Flattened action: update]' indicate it is specifically for updates. It lists writable resources but doesn't explicitly state that this tool updates existing records, making it ambiguous among the create/delete/patch 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 mentions 'update/patch/delete exigem id' but does not clearly indicate when to use this update tool vs the patch or delete tools. It also references create_lote which belongs to a different tool, and lacks explicit guidance like 'use this for modifying existing resources' or how to choose between update and patch. This leaves the agent without clear decision criteria.

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