approve_received_invoice

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

With no annotations, the description carries full disclosure burden. It does not mention side effects, required permissions, idempotency, or error conditions. The action 'approve' implies a state change but gives no behavioral detail beyond the verb itself.

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 a single concise sentence that immediately states the action and object. It is appropriately front-loaded and free of filler, though it may be too terse to fully serve the other dimensions.

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 lack of annotations, output schema, and any contextual side effects, the description falls short. It does not explain what approval entails, return value, or how it interacts with other invoice tools, leaving meaningful gaps for an agent.

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?

Input schema fully covers the only parameter (id) with a clear description ('The received invoice UUID'). The tool description adds no extra meaning beyond what the schema already provides, so baseline 3 is appropriate.

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 uses a specific verb ('approve') and resource ('received invoice'), making the core action clear. It is distinguishable from sibling tools like list_received_invoices or get_received_invoice, though it doesn't elaborate on the approval's effect (e.g., status change).

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 provided on when to use this tool vs alternatives such as update_invoice_status. It lacks context on prerequisites (e.g., invoice must exist, not already approved) or potential alternative actions for approval workflows.

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