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

Annotations already declare readOnlyHint=true, idempotentHint=true, and destructiveHint=false, so the safety profile is established. The description adds the HTTP method (GET) and the bulk execution feature, which is useful behavioral context beyond annotations. However, it does not elaborate on response format, error behavior, or any constraints on batch size. The bar is lower due to annotations, and the description provides adequate additional context.

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 exceptionally concise—only two sentences. The first sentence immediately states the purpose and endpoint, and the second adds the bulk capability. There is zero redundancy or filler; every word contributes value. It is perfectly front-loaded and easy to scan.

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 4 parameters and no output schema, the description provides minimal context. It fails to explain 'query' and 'account', and does not describe the return value (single object vs. array for bulk). An agent would likely need to probe or guess for non-trivial usage. The tool is read-only, reducing risk, but the description is too sparse for complete understanding.

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%, so the description must explain parameters. It covers 'id' (via the endpoint) and implies 'ids' (via bulk support), but completely omits 'query' and 'account'. Without explanation, an agent may not know how to use these parameters correctly. The description adds some meaning for two of the four parameters, but fails to fully compensate for the lack of schema descriptions.

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 the action ('Visualizar' - view) and the exact endpoint (GET /api/servicos/{id}), making it obvious this retrieves a service by ID. It also mentions bulk support, which differentiates it from the list tool that likely retrieves all services. The purpose is unambiguous and distinct from siblings like create/update/delete.

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 implies its use for viewing specific services (via ID) and mentions bulk execution, but it does not explicitly contrast with the list tool or state when not to use this tool. There is no mention of alternatives or exclusions. The context is clear enough that an agent can infer 'use this to get a specific service rather than list all', but it lacks explicit guidance.

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