generate_payment_link

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

No annotations are provided, so the description carries the full burden of behavioral disclosure. It mentions that the tool 'Returns the URL to share with the user', which adds some context about the output. However, it lacks details on permissions, rate limits, error handling, or whether this action is idempotent or has side effects, leaving significant gaps for a tool that generates payment links.

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 front-loaded and efficiently structured in two sentences: one stating the action and resource, and another explaining the return value. There is no wasted language, and every sentence earns its place by providing essential information without redundancy.

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's complexity (generating payment links), lack of annotations, and no output schema, the description is minimally adequate. It covers the purpose and return value but misses behavioral details like authentication needs or error cases. The schema handles parameters well, but overall completeness is limited by the absence of richer context.

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 has 100% description coverage, with the 'orderId' parameter clearly documented. The description does not add any additional meaning or syntax details beyond what the schema provides, such as format examples or constraints. Given the high schema coverage, the baseline score of 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 clearly states the specific action ('Generate a Paystack payment link') and the target resource ('for an existing order'), distinguishing it from siblings like 'create_order' or 'check_payment_status'. It precisely communicates what the tool does without being vague or tautological.

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 by specifying 'for an existing order', suggesting it should be used after an order is created. However, it does not explicitly state when to use this tool versus alternatives like 'create_order' or 'check_payment_status', nor does it provide exclusions or prerequisites beyond the implied order existence.

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