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

Annotations already indicate read-only and idempotent behavior. The description adds value by mentioning bulk support (transfer_ids) and the flattened action, but does not disclose any additional behavioral traits beyond what annotations provide.

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 relatively concise but mixes languages and uses bullet-like formatting. It could be better structured, but each sentence adds information. However, it tries to cover multiple tools (list, get) in one definition, making it less focused.

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?

Given the tool has 6 parameters, no output schema, and combines list/get/bulk operations, the description is incomplete. It omits return format, error handling, filtering details, and authentication context, leaving significant gaps for an agent to invoke it correctly.

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 only lists parameter names (page, size, data, transfer_id, transfer_ids) and vaguely implies filtering for 'data'. It lacks specifics on formats, defaults, or constraints, failing to compensate for the missing schema documentation.

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 tool handles transfers (list, get, bulk) for Pagar.me V5, and identifies the primary action as 'list'. It distinguishes between listing with filters and fetching a single transfer, but mixing multiple actions in one description could lead to confusion.

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 explicit guidance on when to use this tool versus alternatives like pagarme_transfers_get or pagarme_recipients_transfers. The description does not provide context for selection.

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