Schedule Bill

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

With no annotations provided, the description carries the full burden and does useful work: it discloses that no charge occurs at scheduling time and that the payment only executes later if the allowance still covers it. It does not cover failure behavior or authorization needs, but the deferred-payment detail is significant and clearly stated.

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, front-loaded sentence that conveys the action and the key behavioral caveat with no filler. Every phrase contributes useful information.

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 tool with 15 parameters, no output schema, and no annotations, this description is too thin. It explains the scheduling concept but leaves conditional parameters like variation_code, meter_type, day_of_week, and schedule_in_minutes entirely undocumented, so an agent would have to guess how to construct a valid call.

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% and the description provides no parameter-level meaning for any of the 15 properties. Terms like 'allowance' only vaguely connect to balance, and required fields such as pin, service, account_number, amount_ngn, and frequency receive no explanation or format guidance.

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 states a specific action (set up) and resource (recurring or future one-off bill payment), making the core purpose clear. It is distinguishable from immediate bill payment conceptually, but it does not explicitly name or contrast any sibling tools.

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 phrase 'recurring or future one-off' implies when the tool should be used, and the note that money moves 'later' differentiates it from immediate payment. However, there is no explicit guidance about when not to use it or which sibling tool to choose for immediate payments, scheduling, or cancellations.

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