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

The description adds meaningful behavioral context beyond the destructiveHint annotation by stating that transactions and ledger entries are marked as reconciled. It does not disclose irreversibility or permission requirements, but the annotation already flags the destructive nature, so the added context is valuable.

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 two short sentences, front-loaded with the action and followed by the effect. There is no redundant or filler content.

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 simple one-parameter tool, the description sufficiently explains the action and its immediate outcome. It does not mention return values or prerequisites, but given the low complexity and the schema covering the only parameter, this is a minor gap.

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?

The input schema already provides 100% coverage for matchId with the comment 'ID do match a aprovar'. The description adds no further parameter semantics, so the baseline of 3 applies.

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 ('Aprova') and the resource ('um match sugerido pelo motor de conciliação'), and further specifies the consequence ('Marca as transações e lançamentos envolvidos como conciliados'). This distinguishes it from sibling tools like reconciliation_list_matches and reconciliation_execute.

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 usage context with 'sugerido pelo motor de conciliação', but it does not explicitly recommend when to use this tool versus alternatives, nor does it mention prerequisites such as listing matches first. Guidance is implied rather than stated.

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