update_payment

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 only says a status is updated, leaving side effects, permissions, idempotency, and error behavior undisclosed. The enum values are already present in the schema and add no additional behavioral context.

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 efficient sentence with no filler or redundancy, and the allowed status values are compactly parenthesized. It is appropriately short, though its brevity leaves other dimensions under-served.

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 an update tool with no annotations and no output schema, this description is incomplete: an agent cannot infer the response format, authorization requirements, idempotency, or possible side effects. The schema provides the required parameters, but the description adds little operational context beyond the basic update target.

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 only 25%, with only 'participant' described. The description clarifies the update target ('on a bill') but does not explain billId, lang, or how status values are applied beyond repeating the schema enum. It does not sufficiently compensate for the low schema coverage.

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 ('Update') and a specific resource ('participant payment status on a bill'), listing the allowed status values. It is distinguishable from sibling tools like create_bill and get_bill because no sibling targets payment status, though it does not explicitly contrast with any sibling.

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 about when to use this tool versus alternatives, nor are there stated prerequisites, exclusions, or scenarios that would warrant calling update_payment. The only usage signal is the imperative 'Update'.

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